Pub Date : 2017-12-01DOI: 10.1109/ICSENST.2017.8304451
Hideaki Uchiyama, Shunsuke Sakurai, Yoshiki Hashimoto, Atsutoshi Hanasaki, Daisaku Arita, T. Okayasu, Atsushi Shimada, R. Taniguchi
We introduce our sensing technologies to acquire agricultural information, such as image-based plant phenotyping, harvest quantity data, and localization information using a camera in a greenhouse. Commercial systems exist that support agriculture, but many unresolved issues remain regarding optimization of farming sustainability and productivity. Therefore, we intend to apply state-of-the-art information and communication technology (ICT) to tackle these agricultural issues and to investigate their limitations for developing advanced smart agricultural systems.
{"title":"Sensing technologies for advanced smart agricultural systems","authors":"Hideaki Uchiyama, Shunsuke Sakurai, Yoshiki Hashimoto, Atsutoshi Hanasaki, Daisaku Arita, T. Okayasu, Atsushi Shimada, R. Taniguchi","doi":"10.1109/ICSENST.2017.8304451","DOIUrl":"https://doi.org/10.1109/ICSENST.2017.8304451","url":null,"abstract":"We introduce our sensing technologies to acquire agricultural information, such as image-based plant phenotyping, harvest quantity data, and localization information using a camera in a greenhouse. Commercial systems exist that support agriculture, but many unresolved issues remain regarding optimization of farming sustainability and productivity. Therefore, we intend to apply state-of-the-art information and communication technology (ICT) to tackle these agricultural issues and to investigate their limitations for developing advanced smart agricultural systems.","PeriodicalId":289209,"journal":{"name":"2017 Eleventh International Conference on Sensing Technology (ICST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131947335","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 : 2017-12-01DOI: 10.1109/ICSENST.2017.8304438
G. Brooker, John Sambevski, M. Darendeliler, T. Tang
The paper describes the development, calibration and testing of a custom made photometric-thermometric sensor used to measure the penetration of NIR radiation from an intraoral therapeutic LED source, and the resultant temperature increase in tooth sockets. The difficulty of producing this novel device resides in its small dimensions. However a judicious choice of probes enabled successful development, calibration and in vivo testing. Apart from photometric and thermometric data the heart rate of the patients was also apparent, due to swelling of the capillaries in the gum tissue during systole — the contraction phase — of the cardiac cycle.
{"title":"Development and application of an orthodontic near infrared photometer and thermometer","authors":"G. Brooker, John Sambevski, M. Darendeliler, T. Tang","doi":"10.1109/ICSENST.2017.8304438","DOIUrl":"https://doi.org/10.1109/ICSENST.2017.8304438","url":null,"abstract":"The paper describes the development, calibration and testing of a custom made photometric-thermometric sensor used to measure the penetration of NIR radiation from an intraoral therapeutic LED source, and the resultant temperature increase in tooth sockets. The difficulty of producing this novel device resides in its small dimensions. However a judicious choice of probes enabled successful development, calibration and in vivo testing. Apart from photometric and thermometric data the heart rate of the patients was also apparent, due to swelling of the capillaries in the gum tissue during systole — the contraction phase — of the cardiac cycle.","PeriodicalId":289209,"journal":{"name":"2017 Eleventh International Conference on Sensing Technology (ICST)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129095088","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 : 2017-12-01DOI: 10.1109/ICSENST.2017.8304516
Mohamed Rawidean Mohd Kassim, A. N. Harun, I. Yusoff, I. Mat, C. P. Kuen, N. Rahmad
Wireless Sensor Network (WSN) and related technologies are widely used to build decision support systems to solve many real-world problems especially in agricultural environment. Using the basic principles of WSN and Mobile Computing technology, a Smart System for Shiitake Mushroom (SSSM) cultivation in a greenhouse environment was developed near Mount Kinabalu in Sabah, Malaysia. The wireless temperature, humidity and CO2 sensors are used to collect data in this application. The system monitors sensor data in a feedback cycle where the control devices are activated based on pre-defined threshold values. Implementation of SSSM will optimize the usage of human resources and also maximized the yield of the mushroom.
{"title":"Applications of wireless sensor networks in Shiitake Mushroom cultivation","authors":"Mohamed Rawidean Mohd Kassim, A. N. Harun, I. Yusoff, I. Mat, C. P. Kuen, N. Rahmad","doi":"10.1109/ICSENST.2017.8304516","DOIUrl":"https://doi.org/10.1109/ICSENST.2017.8304516","url":null,"abstract":"Wireless Sensor Network (WSN) and related technologies are widely used to build decision support systems to solve many real-world problems especially in agricultural environment. Using the basic principles of WSN and Mobile Computing technology, a Smart System for Shiitake Mushroom (SSSM) cultivation in a greenhouse environment was developed near Mount Kinabalu in Sabah, Malaysia. The wireless temperature, humidity and CO2 sensors are used to collect data in this application. The system monitors sensor data in a feedback cycle where the control devices are activated based on pre-defined threshold values. Implementation of SSSM will optimize the usage of human resources and also maximized the yield of the mushroom.","PeriodicalId":289209,"journal":{"name":"2017 Eleventh International Conference on Sensing Technology (ICST)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125435486","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 : 2017-12-01DOI: 10.1109/ICSENST.2017.8304436
Naoki Mitabe, N. Shinomiya
The aging society is becoming one of the global issues recently, and especially in Japan, more than 25% of its population is over 65 years old. However, there is not enough number of caregivers to deal with the rapid expansion of demands. To support caregivers, the introduction of ICT is progressing. However, some problems such as the invasion of privacy are pointed out. In this paper, an ambient sensor system is proposed to monitor elderly people without surveillance cameras. The system uses unique RFID tags which have a pressure sensing unit. Those tags are put at multi-point around elderly people and detect a change in the pressure environment. In addition, a cleaning robot is used to confirm the safety of an elderly person when detecting a fall. The system also monitors a position of the robot by putting a tag group. With those pressure sensing method and indoor positioning method of the robot, the system monitors elderly people's behavior without invading the privacy.
{"title":"Support system for elderly care with ambient sensors in indoor environment","authors":"Naoki Mitabe, N. Shinomiya","doi":"10.1109/ICSENST.2017.8304436","DOIUrl":"https://doi.org/10.1109/ICSENST.2017.8304436","url":null,"abstract":"The aging society is becoming one of the global issues recently, and especially in Japan, more than 25% of its population is over 65 years old. However, there is not enough number of caregivers to deal with the rapid expansion of demands. To support caregivers, the introduction of ICT is progressing. However, some problems such as the invasion of privacy are pointed out. In this paper, an ambient sensor system is proposed to monitor elderly people without surveillance cameras. The system uses unique RFID tags which have a pressure sensing unit. Those tags are put at multi-point around elderly people and detect a change in the pressure environment. In addition, a cleaning robot is used to confirm the safety of an elderly person when detecting a fall. The system also monitors a position of the robot by putting a tag group. With those pressure sensing method and indoor positioning method of the robot, the system monitors elderly people's behavior without invading the privacy.","PeriodicalId":289209,"journal":{"name":"2017 Eleventh International Conference on Sensing Technology (ICST)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125608433","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 : 2017-12-01DOI: 10.1109/ICSENST.2017.8304482
L. Sidavong, S. Lal, T. Sztynda
Investigation of emotions manifested through facial expressions has valuable applications in predictive behavioural studies. This has piqued interest towards developing intelligent visual surveillance using facial expression analysis coupled with Closed Circuit Television (CCTV). However, a facial recognition program tailored to evaluating facial behaviour for forensic and security purposes can be met if patterns of emotions in general can be detected. The present study assesses whether emotional expression derived from frontal or profile views of the face can be used to determine differences between three emotions: Amusement, Sadness and Fear using the optical flow technique. Analysis was in the form of emotion maps constructed from feature vectors obtained from using the Lucas-Kanade implementation of optical flow. These feature vectors were selected as inputs for classification. It was anticipated that the findings would assist in improving the optical flow algorithm for feature extraction. However, further data analyses are necessary to confirm if different types of emotion can be identified clearly using optical flow or other such techniques.
{"title":"Spontaneous facial expression analysis using optical flow","authors":"L. Sidavong, S. Lal, T. Sztynda","doi":"10.1109/ICSENST.2017.8304482","DOIUrl":"https://doi.org/10.1109/ICSENST.2017.8304482","url":null,"abstract":"Investigation of emotions manifested through facial expressions has valuable applications in predictive behavioural studies. This has piqued interest towards developing intelligent visual surveillance using facial expression analysis coupled with Closed Circuit Television (CCTV). However, a facial recognition program tailored to evaluating facial behaviour for forensic and security purposes can be met if patterns of emotions in general can be detected. The present study assesses whether emotional expression derived from frontal or profile views of the face can be used to determine differences between three emotions: Amusement, Sadness and Fear using the optical flow technique. Analysis was in the form of emotion maps constructed from feature vectors obtained from using the Lucas-Kanade implementation of optical flow. These feature vectors were selected as inputs for classification. It was anticipated that the findings would assist in improving the optical flow algorithm for feature extraction. However, further data analyses are necessary to confirm if different types of emotion can be identified clearly using optical flow or other such techniques.","PeriodicalId":289209,"journal":{"name":"2017 Eleventh International Conference on Sensing Technology (ICST)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125984475","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 : 2017-12-01DOI: 10.1109/ICSENST.2017.8304483
Umar Yahya, S. M. N. Arosha Senanayake, A. G. Naim
Vertical jump (VJ) height is a fundamental performance analysis parameter in several sports involving frequent jump-landing maneuvers such as netball. Recent studies have largely examined performance parameters associated with vertical jump height (VJH) in isolation from each other. This study presents an investigation into the relationship between integrated performance parameters (IPP) and VJH during single-leg (VJSL) and double-leg (VJDL) vertical jump tests. IPP considered include; electromyography (EMG) activity of eight lower extremity (LE) muscles, 3D Kinematics of the knee and ankle joints, body height (BH), reach height (RH), and Jump duration (JT). Thirteen healthy national female netball players participated in this study. Each subject performed VJSL and VJDL in three trials while simultaneously and synchronously recording their LE-EMG activity, 3D kinematics, and VJH in each jump trial. LE-EMG activity acquisition was through wirelessly transmitting BioRadio units (CleveMed Inc. USA), while 3D kinematics were obtained through a six-3D marker-based motion capture camera system (Qualisys Inc. Sweden). VJH reading was obtained from a vertec device (Power Systems Inc. USA). A total of 22 IPP were extracted from raw data of both VJSL tests (i.e VJSL Right-Leg (VJSLR), and VJSL Left-Leg (VJSLL)), while 44 IPP were extracted from raw data of VJDL. The relationship between the reduced datasets' parameters and response variable (VJH) was then modeled using Multilayer Perceptron Feed Forward Neural Networks (FFNNs). Significant features were further selected through stepwise regression analysis. Results showed that FFNNs trained with Scaled conjugate gradient back-propagation (SCG) algorithm achieved the best VJH prediction with accuracy of 97.39% for VJSLL, 94.52% for VJSLR, and of 96.74% for VJDL. These results demonstrate that the integration of 3D Kinematics and EMG using wearable sensors interfaced with motion capture system for IPP, has led to more accurate prediction of VJH. Thus, this serves as quantifiable feedback to coaches and players for performance enhancement as well as injury prevention in jump landing tasks investigated.
垂直起跳(VJ)高度是一些涉及频繁起落动作的运动项目(如篮球)的基本性能分析参数。最近的研究在很大程度上考察了与垂直跳跃高度(VJH)相关的性能参数。本文研究了单腿(VJSL)和双腿(VJDL)垂直起跳试验中综合性能参数(IPP)与VJH的关系。考虑的IPP包括;8个下肢肌肉的肌电图(EMG)活动，膝关节和踝关节的三维运动学，身体高度(BH)，到达高度(RH)和跳跃持续时间(JT)。13名健康的全国女子无挡板篮球运动员参加了本研究。每个被试分别进行三次VJSL和VJDL，同时同步记录每次跳跃试验中他们的LE-EMG活动、3D运动学和VJH。LE-EMG活动采集是通过无线传输BioRadio装置(CleveMed Inc.)完成的。美国)，而三维运动学则通过基于六三维标记的运动捕捉相机系统(Qualisys Inc.)获得。瑞典)。VJH读数从一个顶点装置(Power Systems Inc.)获得。美国)。VJSL试验(即VJSL右腿试验(VJSLR)和VJSL左腿试验(VJSLL))的原始数据共提取了22个IPP, VJDL试验的原始数据共提取了44个IPP。然后使用多层感知器前馈神经网络(FFNNs)对约简数据集参数与响应变量(VJH)之间的关系进行建模。通过逐步回归分析进一步选择显著特征。结果表明，采用缩放共轭梯度反向传播(SCG)算法训练的ffnn对vjll、VJSLR和VJDL的VJH预测准确率分别为97.39%、94.52%和96.74%，达到最佳预测效果。这些结果表明，将3D运动学和肌电图结合使用可穿戴传感器与IPP运动捕捉系统，可以更准确地预测VJH。因此，这可以作为教练和球员的量化反馈，以提高成绩，并在调查的跳跃着陆任务中预防伤害。
{"title":"Intelligent integrated wearable sensing mechanism for vertical jump height prediction in female netball players","authors":"Umar Yahya, S. M. N. Arosha Senanayake, A. G. Naim","doi":"10.1109/ICSENST.2017.8304483","DOIUrl":"https://doi.org/10.1109/ICSENST.2017.8304483","url":null,"abstract":"Vertical jump (VJ) height is a fundamental performance analysis parameter in several sports involving frequent jump-landing maneuvers such as netball. Recent studies have largely examined performance parameters associated with vertical jump height (VJH) in isolation from each other. This study presents an investigation into the relationship between integrated performance parameters (IPP) and VJH during single-leg (VJSL) and double-leg (VJDL) vertical jump tests. IPP considered include; electromyography (EMG) activity of eight lower extremity (LE) muscles, 3D Kinematics of the knee and ankle joints, body height (BH), reach height (RH), and Jump duration (JT). Thirteen healthy national female netball players participated in this study. Each subject performed VJSL and VJDL in three trials while simultaneously and synchronously recording their LE-EMG activity, 3D kinematics, and VJH in each jump trial. LE-EMG activity acquisition was through wirelessly transmitting BioRadio units (CleveMed Inc. USA), while 3D kinematics were obtained through a six-3D marker-based motion capture camera system (Qualisys Inc. Sweden). VJH reading was obtained from a vertec device (Power Systems Inc. USA). A total of 22 IPP were extracted from raw data of both VJSL tests (i.e VJSL Right-Leg (VJSLR), and VJSL Left-Leg (VJSLL)), while 44 IPP were extracted from raw data of VJDL. The relationship between the reduced datasets' parameters and response variable (VJH) was then modeled using Multilayer Perceptron Feed Forward Neural Networks (FFNNs). Significant features were further selected through stepwise regression analysis. Results showed that FFNNs trained with Scaled conjugate gradient back-propagation (SCG) algorithm achieved the best VJH prediction with accuracy of 97.39% for VJSLL, 94.52% for VJSLR, and of 96.74% for VJDL. These results demonstrate that the integration of 3D Kinematics and EMG using wearable sensors interfaced with motion capture system for IPP, has led to more accurate prediction of VJH. Thus, this serves as quantifiable feedback to coaches and players for performance enhancement as well as injury prevention in jump landing tasks investigated.","PeriodicalId":289209,"journal":{"name":"2017 Eleventh International Conference on Sensing Technology (ICST)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127484328","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 : 2017-12-01DOI: 10.1109/ICSENST.2017.8304475
A. Mason, E. Tolo, H. A. Haga
Monitoring of animal consciousness during slaughter in the meat industry is an essential requirement of legislation and animal welfare good practice. It is not a trivial task however, with traditional physical observations of reflex and behaviour not always proving conclusive. In this paper, physical observation is combined with 3-channel non-invasive electroencephalogram (EEG) monitoring during the use of a modified head-to-body electrical stunning method that attempts to interrupt the heart and brain function simultaneously. Comparison of the two methods demonstrated agreement in 90% of cases, when tested using 10 adult sheep. However, comparison with other works leads to the conclusion that the measurements undertaken in this paper are indicative of significant muscular movement, which masks the intended measurement of brain activity. Suggestions for improvement to the methodology are therefore discussed.
{"title":"Non-invasive EEG measurement during electrical stunning of sheep","authors":"A. Mason, E. Tolo, H. A. Haga","doi":"10.1109/ICSENST.2017.8304475","DOIUrl":"https://doi.org/10.1109/ICSENST.2017.8304475","url":null,"abstract":"Monitoring of animal consciousness during slaughter in the meat industry is an essential requirement of legislation and animal welfare good practice. It is not a trivial task however, with traditional physical observations of reflex and behaviour not always proving conclusive. In this paper, physical observation is combined with 3-channel non-invasive electroencephalogram (EEG) monitoring during the use of a modified head-to-body electrical stunning method that attempts to interrupt the heart and brain function simultaneously. Comparison of the two methods demonstrated agreement in 90% of cases, when tested using 10 adult sheep. However, comparison with other works leads to the conclusion that the measurements undertaken in this paper are indicative of significant muscular movement, which masks the intended measurement of brain activity. Suggestions for improvement to the methodology are therefore discussed.","PeriodicalId":289209,"journal":{"name":"2017 Eleventh International Conference on Sensing Technology (ICST)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121950808","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 : 2017-12-01DOI: 10.1109/ICSENST.2017.8304448
K. Chomsuwan, N. Srisuthep, C. Pichitronnachai, U. Toshiyuki
Galfenol magnetostictive device was discovered and designed to used as energy harvesting from vibration. Based on stress variation effects to high magnetic flux fluctuation in the Galfenol, voltage can be generated with sense coil wound around the Galfenol. This paper presents railway monitoring based on Galfenol based vibrating magnetostrictive sensor. Energy generated from Galfenol magnetostrictive sensor can be supplied to the wireless module in order to transmit occupied track information and train location to railway operation control center. In experiment, sensor characteristics and railway detection experiment is presented.
{"title":"Energy free railway monitoring with vibrating magnetostrictive sensor for wireless network sensor","authors":"K. Chomsuwan, N. Srisuthep, C. Pichitronnachai, U. Toshiyuki","doi":"10.1109/ICSENST.2017.8304448","DOIUrl":"https://doi.org/10.1109/ICSENST.2017.8304448","url":null,"abstract":"Galfenol magnetostictive device was discovered and designed to used as energy harvesting from vibration. Based on stress variation effects to high magnetic flux fluctuation in the Galfenol, voltage can be generated with sense coil wound around the Galfenol. This paper presents railway monitoring based on Galfenol based vibrating magnetostrictive sensor. Energy generated from Galfenol magnetostrictive sensor can be supplied to the wireless module in order to transmit occupied track information and train location to railway operation control center. In experiment, sensor characteristics and railway detection experiment is presented.","PeriodicalId":289209,"journal":{"name":"2017 Eleventh International Conference on Sensing Technology (ICST)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123187727","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 : 2017-12-01DOI: 10.1109/ICSENST.2017.8304456
S. Ghosh, Vikram Thakur, S. R. Chowdhury
The paper proposes the design of a low cost and low magnetic field MRI system. The idea behind the low cost and low magnetic field is that the system can be taken to and operated at remote locations suitably. The proposed design operates at a maximum field intensity of 0.2 T. The main magnetic field is proposed to be generated Helmholtz coils based on copper wires as a winding. The strength of gradient magnetic field has been at 75μT. The gradient has been generated using Maxwell coils and Saddle coils. Simulation study has been done where the radius of the Helmholtz coil has been kept at 30cm and the gradient coil has been kept at a radius of 25cm. The RF coil is designed with a radius of 20cm a the resonant frequency of 8.513MHz for 0.2T main magnetic field. Simulation studies performed with COMSOL Multiphysics 5.2 reveals homogeneity of main magnetic field within the coil. The homogeneity of magnetic field at the center of Helmholtz coil for one slice of volume has found to be ±1.2 percent.
{"title":"Design and simulations of low cost and low magnetic field MRI system","authors":"S. Ghosh, Vikram Thakur, S. R. Chowdhury","doi":"10.1109/ICSENST.2017.8304456","DOIUrl":"https://doi.org/10.1109/ICSENST.2017.8304456","url":null,"abstract":"The paper proposes the design of a low cost and low magnetic field MRI system. The idea behind the low cost and low magnetic field is that the system can be taken to and operated at remote locations suitably. The proposed design operates at a maximum field intensity of 0.2 T. The main magnetic field is proposed to be generated Helmholtz coils based on copper wires as a winding. The strength of gradient magnetic field has been at 75μT. The gradient has been generated using Maxwell coils and Saddle coils. Simulation study has been done where the radius of the Helmholtz coil has been kept at 30cm and the gradient coil has been kept at a radius of 25cm. The RF coil is designed with a radius of 20cm a the resonant frequency of 8.513MHz for 0.2T main magnetic field. Simulation studies performed with COMSOL Multiphysics 5.2 reveals homogeneity of main magnetic field within the coil. The homogeneity of magnetic field at the center of Helmholtz coil for one slice of volume has found to be ±1.2 percent.","PeriodicalId":289209,"journal":{"name":"2017 Eleventh International Conference on Sensing Technology (ICST)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131332285","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 : 2017-12-01DOI: 10.1109/ICSENST.2017.8304452
Ayanga Kalupahana, Nisal Hemadasa, Nipun Wijerathne, A. Ranasinghe, A. Pasqual
Highly flexible FPAA and FPGA based universal sensor node design targeting researchers is discussed in this paper. The reconfigurable system is capable of supporting up to three low power analog sensors and two digital sensors in parallel. This facilitates dynamic configurability and remote monitoring by connecting the device to the internet. The design can be utilized in development of remote sensing devices to be establish at locations where frequent repairing and maintenance is difficult. Compensability for aging, adjustability to different environments, flexibility are key advantages of this system.
{"title":"FPAA and FPGA based universal sensor node design","authors":"Ayanga Kalupahana, Nisal Hemadasa, Nipun Wijerathne, A. Ranasinghe, A. Pasqual","doi":"10.1109/ICSENST.2017.8304452","DOIUrl":"https://doi.org/10.1109/ICSENST.2017.8304452","url":null,"abstract":"Highly flexible FPAA and FPGA based universal sensor node design targeting researchers is discussed in this paper. The reconfigurable system is capable of supporting up to three low power analog sensors and two digital sensors in parallel. This facilitates dynamic configurability and remote monitoring by connecting the device to the internet. The design can be utilized in development of remote sensing devices to be establish at locations where frequent repairing and maintenance is difficult. Compensability for aging, adjustability to different environments, flexibility are key advantages of this system.","PeriodicalId":289209,"journal":{"name":"2017 Eleventh International Conference on Sensing Technology (ICST)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131376447","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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