Pub Date : 2018-12-01DOI: 10.1109/ISSIMM.2018.8727739
I. Hermawan, Ario Yudo Husodo, W. Jatmiko, B. Wiweko, Alfred Boediman, Beno K. Pradekso
An electrocardiogram (ECG) is the result of measuring the electrical activity of the heart. Analysis of ECG signal is very useful for detecting abnormalities in the heart by a cardiologist. However, the results of the analysis are affected by the conditions of the Electrocardiogram signal. Electrocardiogram signal has the characteristics of nonstationary, nonlinear and susceptible to noise. This noise can damage the ECG signal, causing damage to the ECG signal which makes it difficult for the cardiologist to analyze the electrocardiogram signal. That noise can be sourced from respiration, mode movement, lack of electrode contact, and another electronic device. To overcome this problem, in this paper filtering is done to eliminate noise on ECG signals. The filter method developed in this study is based on Adaptive Fourier Decomposition (AFD). The ECG signal will be decomposed by that method into several components based on their energy distribution. Therefore, AFD has good performance in separate original ECG signal from noise that has different energy distribution. This AFD method is robust with computation time that is not much different from the Discrete Fourier transform method. To measure the performance of AFD based method, several tests have done by using the MIT-BIH Arrhythmia database. Based on tests result the AFD method has a better performance on almost all recordings than the EMD and Wavelet Transform methods.
{"title":"Denoising Noisy ECG Signal Based on Adaptive Fourier Decomposition","authors":"I. Hermawan, Ario Yudo Husodo, W. Jatmiko, B. Wiweko, Alfred Boediman, Beno K. Pradekso","doi":"10.1109/ISSIMM.2018.8727739","DOIUrl":"https://doi.org/10.1109/ISSIMM.2018.8727739","url":null,"abstract":"An electrocardiogram (ECG) is the result of measuring the electrical activity of the heart. Analysis of ECG signal is very useful for detecting abnormalities in the heart by a cardiologist. However, the results of the analysis are affected by the conditions of the Electrocardiogram signal. Electrocardiogram signal has the characteristics of nonstationary, nonlinear and susceptible to noise. This noise can damage the ECG signal, causing damage to the ECG signal which makes it difficult for the cardiologist to analyze the electrocardiogram signal. That noise can be sourced from respiration, mode movement, lack of electrode contact, and another electronic device. To overcome this problem, in this paper filtering is done to eliminate noise on ECG signals. The filter method developed in this study is based on Adaptive Fourier Decomposition (AFD). The ECG signal will be decomposed by that method into several components based on their energy distribution. Therefore, AFD has good performance in separate original ECG signal from noise that has different energy distribution. This AFD method is robust with computation time that is not much different from the Discrete Fourier transform method. To measure the performance of AFD based method, several tests have done by using the MIT-BIH Arrhythmia database. Based on tests result the AFD method has a better performance on almost all recordings than the EMD and Wavelet Transform methods.","PeriodicalId":178365,"journal":{"name":"2018 3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology (ISSIMM)","volume":"363 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125815455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ISSIMM.2018.8727730
Sugiarto, S. Wijaya, Hariyanto
Sea temperature and sea currents are very useful ocean parameters in human activities such as marine-based economic activities, transportation, and scientific research. Sea temperature and sea currents data in Indonesia usually obtained from satellites and forecast model called Ocean Forecasting System (OFS BMKG) because not all Marine Meteorological Station in Indonesia equipped with sea temperature and sea currents observation instruments to perform the measurements directly. One solution to overcome these problems is to design a portable sea temperature and sea currents measuring device that easily operate and concise. The design of the portable sea temperature and sea currents measuring device in this study utilizes easily designed electronic components and can display real-time data of sea temperature and sea currents automatically. The components used in this research are DS18B20 sensor, YFS-201 sensor, HMC5883L sensor, and the Arduino Nano 3.0 microcontroller for data collection and processing. Once processed in the microcontroller, data is then displayed with a Visual Studio 2015-based application. The result of this study is the device can operate within correction range allowed by WMO and BMKG, and OFS model verification test show that the instruments can works properly with average temperature correction of 0.17525 C, sea current direction with correction of 4.85 degrees, and sea current speed has the correlation of measurement about 0.94.
海温和海流是人类经济活动、交通运输和科学研究中非常有用的海洋参数。印度尼西亚的海温和海流数据通常是从卫星和称为海洋预报系统(OFS BMKG)的预报模型获得的，因为不是所有的印度尼西亚海洋气象站都配备了海温和海流观测仪器来直接进行测量。解决这些问题的一种方法是设计一种易于操作和简洁的便携式海温海流测量装置。本课题设计的便携式海温海流测量装置采用了设计简单的电子元件，能够自动实时显示海温海流数据。本研究采用DS18B20传感器、YFS-201传感器、HMC5883L传感器和Arduino Nano 3.0微控制器进行数据采集和处理。一旦在微控制器中处理，数据就会在基于Visual Studio 2015的应用程序中显示。研究结果表明，该装置能够在WMO和BMKG允许的校正范围内工作，OFS模型验证试验表明，该仪器能够正常工作，平均温度校正0.17525℃，海流方向校正4.85度，海流速度测量相关系数约为0.94。
{"title":"Design of Portable Sea Temperature and Sea Current Measuring Equipment","authors":"Sugiarto, S. Wijaya, Hariyanto","doi":"10.1109/ISSIMM.2018.8727730","DOIUrl":"https://doi.org/10.1109/ISSIMM.2018.8727730","url":null,"abstract":"Sea temperature and sea currents are very useful ocean parameters in human activities such as marine-based economic activities, transportation, and scientific research. Sea temperature and sea currents data in Indonesia usually obtained from satellites and forecast model called Ocean Forecasting System (OFS BMKG) because not all Marine Meteorological Station in Indonesia equipped with sea temperature and sea currents observation instruments to perform the measurements directly. One solution to overcome these problems is to design a portable sea temperature and sea currents measuring device that easily operate and concise. The design of the portable sea temperature and sea currents measuring device in this study utilizes easily designed electronic components and can display real-time data of sea temperature and sea currents automatically. The components used in this research are DS18B20 sensor, YFS-201 sensor, HMC5883L sensor, and the Arduino Nano 3.0 microcontroller for data collection and processing. Once processed in the microcontroller, data is then displayed with a Visual Studio 2015-based application. The result of this study is the device can operate within correction range allowed by WMO and BMKG, and OFS model verification test show that the instruments can works properly with average temperature correction of 0.17525 C, sea current direction with correction of 4.85 degrees, and sea current speed has the correlation of measurement about 0.94.","PeriodicalId":178365,"journal":{"name":"2018 3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology (ISSIMM)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133917998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ISSIMM.2018.8727725
L. Umar, Irfan Firmansyah, R. N. Setiadi
This paper presents the design of pulse oximetry to measure oxygen in blood saturation (SpO2) using an Arduino Uno module. The SpO2 measurement was conducted by acquiring the signal photoplethysmography (PPG) at the fingertip using a DS-100A probe consisting of an infrared (960 nm) and a red (640 nm) light sources, and also a photodiode. The signal of the photodiode is amplified and filtered with three frequency poles, i.e., 0.5 Hz, 1 Hz and 1.6 Hz. The result of the filtering shows that the PPG signal at the fingertip gives stable maximum and minimum values of 1.1697 volts and 1.1557 volts for red and 3.3946 volts and 3.3092 volts for infrared rays. From these results, the AC/DC voltage can be calculated for red and infrared lights resulting 98.26% SpO2 level, which states normal conditions. The maximum AC/DC voltage value occurs at the little finger and the minimum value occurs at the thumb finger. SpO2 signal was compared to the JZK-301 calibrator and shows the percentage error results ($varepsilon$) less than 1% on each finger.
{"title":"Design of Pulse Oximetry Based on Photoplethysmography and Beat Rate Signal Using DS-100 Probe Sensor for SpO2 Measurement","authors":"L. Umar, Irfan Firmansyah, R. N. Setiadi","doi":"10.1109/ISSIMM.2018.8727725","DOIUrl":"https://doi.org/10.1109/ISSIMM.2018.8727725","url":null,"abstract":"This paper presents the design of pulse oximetry to measure oxygen in blood saturation (SpO2) using an Arduino Uno module. The SpO2 measurement was conducted by acquiring the signal photoplethysmography (PPG) at the fingertip using a DS-100A probe consisting of an infrared (960 nm) and a red (640 nm) light sources, and also a photodiode. The signal of the photodiode is amplified and filtered with three frequency poles, i.e., 0.5 Hz, 1 Hz and 1.6 Hz. The result of the filtering shows that the PPG signal at the fingertip gives stable maximum and minimum values of 1.1697 volts and 1.1557 volts for red and 3.3946 volts and 3.3092 volts for infrared rays. From these results, the AC/DC voltage can be calculated for red and infrared lights resulting 98.26% SpO2 level, which states normal conditions. The maximum AC/DC voltage value occurs at the little finger and the minimum value occurs at the thumb finger. SpO2 signal was compared to the JZK-301 calibrator and shows the percentage error results ($varepsilon$) less than 1% on each finger.","PeriodicalId":178365,"journal":{"name":"2018 3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology (ISSIMM)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133270758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ISSIMM.2018.8727635
Nadiatus Silmi, T. Ivandini, Endang Asijati W
Electrochemical behavior of hypochlorous acid (HClO) have been studied at boron-doped diamond (BDD) electrodes in physiological pH solution. The electrochemical measurements were performed in one-compartment electrochemical cell using cyclic voltammetry technique. A solution of 0.5 M phosphate buffer solution has been selected as the supporting electrolyte. Cyclic voltammograms of NaClO standard solutions showed the best response at optimum pH of 6.6 at the potential reduction of +0.1 V. Linear calibration curve ($mathbf{R}^{2}=0.9953$) can be achieved at a NaClO concentration range from 1.68 to 5.86 mM with an estimated limit of detection (LOD) of 0.46 mM.
{"title":"Hypochlorous Acid Sensor using Boron-Doped Diamond Electrode in Physiological pH Solution","authors":"Nadiatus Silmi, T. Ivandini, Endang Asijati W","doi":"10.1109/ISSIMM.2018.8727635","DOIUrl":"https://doi.org/10.1109/ISSIMM.2018.8727635","url":null,"abstract":"Electrochemical behavior of hypochlorous acid (HClO) have been studied at boron-doped diamond (BDD) electrodes in physiological pH solution. The electrochemical measurements were performed in one-compartment electrochemical cell using cyclic voltammetry technique. A solution of 0.5 M phosphate buffer solution has been selected as the supporting electrolyte. Cyclic voltammograms of NaClO standard solutions showed the best response at optimum pH of 6.6 at the potential reduction of +0.1 V. Linear calibration curve ($mathbf{R}^{2}=0.9953$) can be achieved at a NaClO concentration range from 1.68 to 5.86 mM with an estimated limit of detection (LOD) of 0.46 mM.","PeriodicalId":178365,"journal":{"name":"2018 3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology (ISSIMM)","volume":"183 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121304769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ISSIMM.2018.8727738
Teuku Yuliar Arif, Dery Rinaldi, Ramzi Adriman
IEEE 802.11 has been developed rapidly especially to produce High Throughput (HT) and Very High Throughput (VHT) in Wireless Local Area Network (WLAN). As a consequence, a new rate adaptation algorithm is required that can control the bandwidth of the channel, guard interval, number of spatial streams, and modulation and coding rate scheme (MCS) most appropriate for data transmission. Several algorithms have been proposed in the literature, but they do not consider energy efficiency. In this paper, we propose an energy-aware rate adaptation and call it as Adaptive Power Automatic Rate Fallback for High Throughput (APARF-HT) algorithm. We classify the data rate in IEEE 802.11n WLAN into group rate. If the resulting data transmission reaches the threshold then the transmitted power is decremented while still keeping the data successfully transmitted. If the transmit power has reached the minimum, then the data rate is incremented in the group rate, but if the rate is maximal in the group rate then the group rate is also incremented. So in APARF-HT, transmit power, bandwidth, guard interval, number of data streams and MCS are used dynamically during data transmission to generate optimal throughput and energy consumption. The proposed algorithm is implemented and tested using NS-3. The simulation results show that APARF-HT produces lower energy consumption per bit compared to a similar algorithm.
{"title":"Energy-Aware Rate Adaptation Algorithm for High Throughput IEEE 802.11n WLANs","authors":"Teuku Yuliar Arif, Dery Rinaldi, Ramzi Adriman","doi":"10.1109/ISSIMM.2018.8727738","DOIUrl":"https://doi.org/10.1109/ISSIMM.2018.8727738","url":null,"abstract":"IEEE 802.11 has been developed rapidly especially to produce High Throughput (HT) and Very High Throughput (VHT) in Wireless Local Area Network (WLAN). As a consequence, a new rate adaptation algorithm is required that can control the bandwidth of the channel, guard interval, number of spatial streams, and modulation and coding rate scheme (MCS) most appropriate for data transmission. Several algorithms have been proposed in the literature, but they do not consider energy efficiency. In this paper, we propose an energy-aware rate adaptation and call it as Adaptive Power Automatic Rate Fallback for High Throughput (APARF-HT) algorithm. We classify the data rate in IEEE 802.11n WLAN into group rate. If the resulting data transmission reaches the threshold then the transmitted power is decremented while still keeping the data successfully transmitted. If the transmit power has reached the minimum, then the data rate is incremented in the group rate, but if the rate is maximal in the group rate then the group rate is also incremented. So in APARF-HT, transmit power, bandwidth, guard interval, number of data streams and MCS are used dynamically during data transmission to generate optimal throughput and energy consumption. The proposed algorithm is implemented and tested using NS-3. The simulation results show that APARF-HT produces lower energy consumption per bit compared to a similar algorithm.","PeriodicalId":178365,"journal":{"name":"2018 3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology (ISSIMM)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125268492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ISSIMM.2018.8727740
Indah Nursyamsi Handayani, C. Imawan
The food sterilization process with the gamma irradiation technique is highly determined by the accuracy of the absorbed dose. One of the absorbed dose measurement systems that can be used to monitor food irradiation processes is radiochromic dosimeter. So, the application of radiochromic dosimeter in the food irradiation is very necessary. This paper reports a simple dosimetry system using liquid radiochromic. The liquid dosimeter dye was prepared from Hibiscus sabdariffa L. (Roselle) dried flower extract using the maceration method in ethanol solution. The dosimeter was tested using gamma ray from a Cobalt-60 source at the medium dose level from 1 to 10 kGy. The color of the dye fades from red to clear gradually with an increasing dose of gamma irradiation. UV-visible characterization shows that the dye solution has an absorption peak at 530 nm. This peak absorption value decreases as the dose of irradiation increases. The stability of unirradiated and irradiated liquid radiochromic dosimeters has been observed for 30 days and shows good stability. These results indicate that liquid radiochromic can be applied as a routine dosimeter for the treatment of food irradiation at the medium dose level.
{"title":"Liquid Radiochromic from Roselle Dye Extract for Gamma-ray Dosimetry Applications at Medium Dose Levels","authors":"Indah Nursyamsi Handayani, C. Imawan","doi":"10.1109/ISSIMM.2018.8727740","DOIUrl":"https://doi.org/10.1109/ISSIMM.2018.8727740","url":null,"abstract":"The food sterilization process with the gamma irradiation technique is highly determined by the accuracy of the absorbed dose. One of the absorbed dose measurement systems that can be used to monitor food irradiation processes is radiochromic dosimeter. So, the application of radiochromic dosimeter in the food irradiation is very necessary. This paper reports a simple dosimetry system using liquid radiochromic. The liquid dosimeter dye was prepared from Hibiscus sabdariffa L. (Roselle) dried flower extract using the maceration method in ethanol solution. The dosimeter was tested using gamma ray from a Cobalt-60 source at the medium dose level from 1 to 10 kGy. The color of the dye fades from red to clear gradually with an increasing dose of gamma irradiation. UV-visible characterization shows that the dye solution has an absorption peak at 530 nm. This peak absorption value decreases as the dose of irradiation increases. The stability of unirradiated and irradiated liquid radiochromic dosimeters has been observed for 30 days and shows good stability. These results indicate that liquid radiochromic can be applied as a routine dosimeter for the treatment of food irradiation at the medium dose level.","PeriodicalId":178365,"journal":{"name":"2018 3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology (ISSIMM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117101067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ISSIMM.2018.8727728
D. A. Hapidin, Muhamad Zia Pratama Hernawan, Fery Krisnanto, Abas Syahbana, Muhammad Isro Fiordi, M. Munir, K. Khairurrijal
Velocity is a physical quantity that is widely used in daily routine. The adverse utilization of the quantity makes the methods and measurement devices are necessary. The most common method to obtain velocity is by measuring the interval time of an object that moves at a certain distance. Usually, two light sensors (e.g., photodetectors, light dependent resistors or LDRs) are placed at a certain distance to detect the moving object and measure their interval time. This paper discusses the uses of a single LDR sensor to measure the velocity. LDR is a light sensor, which its resistance rises if the intensity of the light decreases. To measure the interval time, the light-sensitive part of the LDR sensor was partially covered (cover area $2.5 times 1.0 mathbf{cm}^{2}$), which make the LDR has two sensitive areas. This allowed a single LDR sensor to measure the velocity of an object. The sensor responses when the object passing through it were analyzed from voltage to time graph. The experiment was done by passing by objects of different sizes ($3.5 times 5.1 mathbf{cm}^{2}$ and $3.5 times 0.35 mathbf{cm}^{2}$). These size differences produce different voltage outputs so that the effect of the object size to the sensor responses can be analyzed. Also, by placing a cover that unequally divides the LDR light-sensitive part, the object motion direction could be predicted from the voltage to time graph pattern. The resulting output signal depended on the size of the object passing through the sensor, the size of the LDR, and the size of the LDR cover. The velocity calibration result exhibited a regression equation to calculate the velocity from sensor output, which was $mathbf{y}=3.99084 mathbf{x}+0.15663$, with x and y were the reference and measured velocity, respectively. Moreover, the sensor has a high precision on low-velocity measurement, which might be caused by the latency property of the sensor.
速度是一个在日常生活中广泛使用的物理量。数量的不良利用使得方法和测量装置成为必要。获得速度最常用的方法是测量物体在一定距离上运动的间隔时间。通常，将两个光传感器(如光电探测器、光相关电阻或ldr)放置在一定距离上，以检测运动物体并测量其间隔时间。本文讨论了单LDR传感器测量速度的方法。LDR是一种光传感器，如果光的强度降低，它的电阻就会上升。为了测量间隔时间，将LDR传感器的光敏部分部分覆盖(覆盖面积$2.5 乘以1.0 mathbf{cm}^{2}$)，使LDR具有两个敏感区域。这使得单个LDR传感器可以测量物体的速度。从电压图到时间图分析了物体经过传感器时的响应。实验通过传递不同大小的对象($3.5 times 5.1 mathbf{cm}^{2}$和$3.5 times 0.35 mathbf{cm}^{2}$)来完成。这些尺寸差异产生不同的电压输出，因此可以分析物体尺寸对传感器响应的影响。此外，通过放置一个不均匀划分LDR光敏部分的覆盖物，可以从电压-时间图模式预测物体的运动方向。产生的输出信号取决于通过传感器的物体的大小、LDR的大小和LDR盖的大小。速度标定结果显示，从传感器输出计算速度的回归方程为$mathbf{y}=3.99084 mathbf{x}+0.15663$，其中x和y分别为参考速度和测量速度。此外，该传感器在低速测量时精度较高，这可能与传感器的延迟特性有关。
{"title":"The Study of Velocity Measurement Using Single Light Dependent Resistor (LDR) Sensor","authors":"D. A. Hapidin, Muhamad Zia Pratama Hernawan, Fery Krisnanto, Abas Syahbana, Muhammad Isro Fiordi, M. Munir, K. Khairurrijal","doi":"10.1109/ISSIMM.2018.8727728","DOIUrl":"https://doi.org/10.1109/ISSIMM.2018.8727728","url":null,"abstract":"Velocity is a physical quantity that is widely used in daily routine. The adverse utilization of the quantity makes the methods and measurement devices are necessary. The most common method to obtain velocity is by measuring the interval time of an object that moves at a certain distance. Usually, two light sensors (e.g., photodetectors, light dependent resistors or LDRs) are placed at a certain distance to detect the moving object and measure their interval time. This paper discusses the uses of a single LDR sensor to measure the velocity. LDR is a light sensor, which its resistance rises if the intensity of the light decreases. To measure the interval time, the light-sensitive part of the LDR sensor was partially covered (cover area $2.5 times 1.0 mathbf{cm}^{2}$), which make the LDR has two sensitive areas. This allowed a single LDR sensor to measure the velocity of an object. The sensor responses when the object passing through it were analyzed from voltage to time graph. The experiment was done by passing by objects of different sizes ($3.5 times 5.1 mathbf{cm}^{2}$ and $3.5 times 0.35 mathbf{cm}^{2}$). These size differences produce different voltage outputs so that the effect of the object size to the sensor responses can be analyzed. Also, by placing a cover that unequally divides the LDR light-sensitive part, the object motion direction could be predicted from the voltage to time graph pattern. The resulting output signal depended on the size of the object passing through the sensor, the size of the LDR, and the size of the LDR cover. The velocity calibration result exhibited a regression equation to calculate the velocity from sensor output, which was $mathbf{y}=3.99084 mathbf{x}+0.15663$, with x and y were the reference and measured velocity, respectively. Moreover, the sensor has a high precision on low-velocity measurement, which might be caused by the latency property of the sensor.","PeriodicalId":178365,"journal":{"name":"2018 3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology (ISSIMM)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127726942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ISSIMM.2018.8727732
Melania Suweni, Muntini Ulfa Niswatul, Diky Anggoro Khasanah, Y. H. Pramono, E. Minarto
Research has been conducted on the effect of the configuration of Inter-digital sensor capacitors (IDCs) on the measurement of permittivity of crude oil. This research aims to obtain more effective IDCS configuration compared to the old model configuration and dielectric constants of several crude oil samples from PT. Pertamina Cepu. This study has already researched four types of crude oil samples which were obtained from four wells with different depths. Besides, the research refers to the capacitance principle, microstrip sensor, and wave properties. To conduct the research, capacitor sensors were arranged in parallel on thin plates that have a $1 boldsymbol{mu}mathbf{m}$ thickness, namely IDCs. This sensor is used to determine the characteristics of crude oil in the form of permittivity. The data was measured by IDCs then compared with VNA data (Vector Network Analyzer) as a calibrator. VNA uses the principle of transmission and wave reflection. IDCs have several components, namely the width of the electrode and the number of electrodes. To obtain an accurate dielectric constant sensor, researchers made a variation on the width between two adjacent electrodes and the number of electrodes. Based on the research that has been done, it is found that with the increasing distance between the two adjacent electrodes, it results in a decrease in the capacitance value and the dielectric constant of crude oil. Whereas along with the increase in the number of electrodes, the crude oil capacitance also increases; yet it is not directly proportional compared to the dielectric constant of each crude oil. Hence, the permittivity of crude oil taken from a depth of less than 1500 ft (A) is 4.27, permittivity of crude oil taken from a depth of 1500–2000 ft (B) is 3.38 and permittivity of crude oil taken from a depth of more than 2000 ft (C) is 5.24.
{"title":"The Effect of Inter Digital Capacitors Sensor (IDCS) Configuration on Permittivity Measurement of Crude Oil","authors":"Melania Suweni, Muntini Ulfa Niswatul, Diky Anggoro Khasanah, Y. H. Pramono, E. Minarto","doi":"10.1109/ISSIMM.2018.8727732","DOIUrl":"https://doi.org/10.1109/ISSIMM.2018.8727732","url":null,"abstract":"Research has been conducted on the effect of the configuration of Inter-digital sensor capacitors (IDCs) on the measurement of permittivity of crude oil. This research aims to obtain more effective IDCS configuration compared to the old model configuration and dielectric constants of several crude oil samples from PT. Pertamina Cepu. This study has already researched four types of crude oil samples which were obtained from four wells with different depths. Besides, the research refers to the capacitance principle, microstrip sensor, and wave properties. To conduct the research, capacitor sensors were arranged in parallel on thin plates that have a $1 boldsymbol{mu}mathbf{m}$ thickness, namely IDCs. This sensor is used to determine the characteristics of crude oil in the form of permittivity. The data was measured by IDCs then compared with VNA data (Vector Network Analyzer) as a calibrator. VNA uses the principle of transmission and wave reflection. IDCs have several components, namely the width of the electrode and the number of electrodes. To obtain an accurate dielectric constant sensor, researchers made a variation on the width between two adjacent electrodes and the number of electrodes. Based on the research that has been done, it is found that with the increasing distance between the two adjacent electrodes, it results in a decrease in the capacitance value and the dielectric constant of crude oil. Whereas along with the increase in the number of electrodes, the crude oil capacitance also increases; yet it is not directly proportional compared to the dielectric constant of each crude oil. Hence, the permittivity of crude oil taken from a depth of less than 1500 ft (A) is 4.27, permittivity of crude oil taken from a depth of 1500–2000 ft (B) is 3.38 and permittivity of crude oil taken from a depth of more than 2000 ft (C) is 5.24.","PeriodicalId":178365,"journal":{"name":"2018 3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology (ISSIMM)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133694717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ISSIMM.2018.8727735
Iqbal Fachrizal, A. H. Saputro, B. Kiswanjaya
Visually, it is difficult to differentiate between smoker and non-smoker tongue even for an experienced doctor or dentist. One of the most objective ways to acknowledge the smoker tongue is by using tools such as a camera. The proposed system contains two parts, hardware, and software. The hardware consists of a workbench, slider, a halogen light source and hyperspectral camera with a spectral range between 400–1000 nm connected to a personal computer. The system complemented with image processing software built up especially to analyze the smoker tongue. The reflectance values of the tongue surface were extracted from respondent tongue image that previously corrected using white and dark hyperspectral image references. The principal component analysis (PCA) was used to compute and select the features subset which will be used as an input by the classifier. The support vector machine (SVM) classifier is used as image classification model since it performs excellently to choose the best hyperplane separator between two different classes. The evaluation of system result is checked using confusion matrix by making false positive rate (FPR), false negative rate (FNR), sensitivity and specificity as system reliability parameters. A Smoker detection system to identify smoker's melanosis is successfully classify the tongue of smokers and non-smokers with reasonable accuracy.
{"title":"Pigmentation Prevalence Analysis of Smoker's Tongue Using Hyperspectral Imaging","authors":"Iqbal Fachrizal, A. H. Saputro, B. Kiswanjaya","doi":"10.1109/ISSIMM.2018.8727735","DOIUrl":"https://doi.org/10.1109/ISSIMM.2018.8727735","url":null,"abstract":"Visually, it is difficult to differentiate between smoker and non-smoker tongue even for an experienced doctor or dentist. One of the most objective ways to acknowledge the smoker tongue is by using tools such as a camera. The proposed system contains two parts, hardware, and software. The hardware consists of a workbench, slider, a halogen light source and hyperspectral camera with a spectral range between 400–1000 nm connected to a personal computer. The system complemented with image processing software built up especially to analyze the smoker tongue. The reflectance values of the tongue surface were extracted from respondent tongue image that previously corrected using white and dark hyperspectral image references. The principal component analysis (PCA) was used to compute and select the features subset which will be used as an input by the classifier. The support vector machine (SVM) classifier is used as image classification model since it performs excellently to choose the best hyperplane separator between two different classes. The evaluation of system result is checked using confusion matrix by making false positive rate (FPR), false negative rate (FNR), sensitivity and specificity as system reliability parameters. A Smoker detection system to identify smoker's melanosis is successfully classify the tongue of smokers and non-smokers with reasonable accuracy.","PeriodicalId":178365,"journal":{"name":"2018 3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology (ISSIMM)","volume":"1997 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125707594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-12-01DOI: 10.1109/ISSIMM.2018.8727638
A. Hatta, Rima Fitria Adiati, R. N. Hidayati, D. Y. Pratama, Sekartedjo
The single mode – multimode – single mode (SMS) fiber structures have been utilized for various temperature sensor applications. In this paper, we investigated a way to enhance the temperature sensitivity of SMS fiber structure as a sensor. Application of packaging material in the optical fiber sensor can induce strain due to a temperature variation. Three types of material, namely steel, aluminum, and PTFE were used as the packaging material in a bar shape. The SMS fiber structure was glued on the packaging material at two points of the bar. A coefficient of thermal expansion (CTE) of packaging material plays important role in designing the sensor. A modal propagation analysis (MPA) is used to analyze the light propagation in the SMS fiber structure, taken into account the CTE of packaging material. It is shown that the use of packaging can enhance the temperature sensor sensitivity of SMS fiber structure.
{"title":"Enhancing Temperature Sensitivity for The SMS Fiber Structure Temperature Sensor","authors":"A. Hatta, Rima Fitria Adiati, R. N. Hidayati, D. Y. Pratama, Sekartedjo","doi":"10.1109/ISSIMM.2018.8727638","DOIUrl":"https://doi.org/10.1109/ISSIMM.2018.8727638","url":null,"abstract":"The single mode – multimode – single mode (SMS) fiber structures have been utilized for various temperature sensor applications. In this paper, we investigated a way to enhance the temperature sensitivity of SMS fiber structure as a sensor. Application of packaging material in the optical fiber sensor can induce strain due to a temperature variation. Three types of material, namely steel, aluminum, and PTFE were used as the packaging material in a bar shape. The SMS fiber structure was glued on the packaging material at two points of the bar. A coefficient of thermal expansion (CTE) of packaging material plays important role in designing the sensor. A modal propagation analysis (MPA) is used to analyze the light propagation in the SMS fiber structure, taken into account the CTE of packaging material. It is shown that the use of packaging can enhance the temperature sensor sensitivity of SMS fiber structure.","PeriodicalId":178365,"journal":{"name":"2018 3rd International Seminar on Sensors, Instrumentation, Measurement and Metrology (ISSIMM)","volume":"15 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116729973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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