Pub Date : 2013-12-01DOI: 10.1109/ICSENST.2013.6727676
Yundong Zhang, Xuenan Zhang, Xiaoqi Liu, P. Yuan
We propose a coupled add-drop ring resonator configuration for highly sensitive sensing. We theoretically examine the asymmetric Fano lineshapes of the two output ports of the proposed structure. The sharpness and the asymmetricity of the Fano resonance are linked to the high sensitivity. We theoretically calculate the sensitivity of the proposed coupled add-drop ring resonator as a sensor. The sensitivities of the two ports of our configuration can achieve 799.4 / rad (drop port) and 503.7 / rad (through port) respectively. The performance of the proposed structure is enhanced by almost 20 times than that of the single ring resonator based add-drop interferometer by introducing the upper ring resonator. This proposed configuration enables highly sensitive, compact and stable sensors.
{"title":"Coupled add-drop ring resonator for highly sensitive sensing","authors":"Yundong Zhang, Xuenan Zhang, Xiaoqi Liu, P. Yuan","doi":"10.1109/ICSENST.2013.6727676","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727676","url":null,"abstract":"We propose a coupled add-drop ring resonator configuration for highly sensitive sensing. We theoretically examine the asymmetric Fano lineshapes of the two output ports of the proposed structure. The sharpness and the asymmetricity of the Fano resonance are linked to the high sensitivity. We theoretically calculate the sensitivity of the proposed coupled add-drop ring resonator as a sensor. The sensitivities of the two ports of our configuration can achieve 799.4 / rad (drop port) and 503.7 / rad (through port) respectively. The performance of the proposed structure is enhanced by almost 20 times than that of the single ring resonator based add-drop interferometer by introducing the upper ring resonator. This proposed configuration enables highly sensitive, compact and stable sensors.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126862411","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 : 2013-12-01DOI: 10.1109/ICSENST.2013.6727753
Yi-Nan Li, Jian Li, Nan Zhou, Shijiu Jin, Zhoumo Zeng, Z. Tian, Lijun Sun
Refined oil mixtures can be quantified using terahertz absorption coefficient spectra and dualistic linear regression fitting. When this method was used to quantify mixtures of -10# diesel and 97# gasoline, the volume fraction of 97# gasoline was well fitted. However, the absolute error between the real and fitted -10# diesel content was large (17.5%). To solve this problem, the present research addresses the possibility of developing a method that would allow direct, simple, and accurate determination of the -10# diesel content in gasolinediesel mixtures, using a terahertz time-domain pulse coupled to a multi-parameter combined analysis. The multi-parameter represents the time delay and amplitude of the first transmission dip and peak in the time-domain pulse. The relationship between these four parameters and the -10# diesel content in gasolinediesel mixtures was thoroughly investigated and four distinct calibration models for quantifying gasoline-diesel mixtures were built, using least square fitting. To enable the development of an informative and accurate calibration model, the four individual models were given proper weights and combined. The weight was determined by the cosine-optimal-method, which aimed to determine the most proper weight under the condition of the cosine of the angle between the fitted content vector and the real content vector that reaches the maximum. This method allows the determination of -10# diesel content in gasoline-diesel mixtures with a low absolute error (2.6%), resulting in predictions that are more accurate and precise than those obtained by the terahertz absorption coefficient spectra and dualistic linear regression fitting.
{"title":"Gasoline-diesel mixtures quantifying using terahertz time-domain waveform","authors":"Yi-Nan Li, Jian Li, Nan Zhou, Shijiu Jin, Zhoumo Zeng, Z. Tian, Lijun Sun","doi":"10.1109/ICSENST.2013.6727753","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727753","url":null,"abstract":"Refined oil mixtures can be quantified using terahertz absorption coefficient spectra and dualistic linear regression fitting. When this method was used to quantify mixtures of -10# diesel and 97# gasoline, the volume fraction of 97# gasoline was well fitted. However, the absolute error between the real and fitted -10# diesel content was large (17.5%). To solve this problem, the present research addresses the possibility of developing a method that would allow direct, simple, and accurate determination of the -10# diesel content in gasolinediesel mixtures, using a terahertz time-domain pulse coupled to a multi-parameter combined analysis. The multi-parameter represents the time delay and amplitude of the first transmission dip and peak in the time-domain pulse. The relationship between these four parameters and the -10# diesel content in gasolinediesel mixtures was thoroughly investigated and four distinct calibration models for quantifying gasoline-diesel mixtures were built, using least square fitting. To enable the development of an informative and accurate calibration model, the four individual models were given proper weights and combined. The weight was determined by the cosine-optimal-method, which aimed to determine the most proper weight under the condition of the cosine of the angle between the fitted content vector and the real content vector that reaches the maximum. This method allows the determination of -10# diesel content in gasoline-diesel mixtures with a low absolute error (2.6%), resulting in predictions that are more accurate and precise than those obtained by the terahertz absorption coefficient spectra and dualistic linear regression fitting.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116425016","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 : 2013-12-01DOI: 10.1109/ICSENST.2013.6727611
I. Al-Bahadly, A. Reda
The aim of this work is to develop a system that can deliver the sense of smell in video game applications to individual gamers for a more immersive video game experience. Currently, there are no such products that deliver this experience in the gaming market. The prototype consists of an aerosol scent canister designed to produce in game specific scents such as gunfire and burning rubber. The canister contains an actuator that is connected to a circuit board. The circuit board is in contact with a USB cord that is compatible with the PC and gaming consoles. A signal from a computer program triggers the actuator to switch the canister scent emission on by using power generated from an AC adaptor.
{"title":"A digital delivery system of scent for video game application","authors":"I. Al-Bahadly, A. Reda","doi":"10.1109/ICSENST.2013.6727611","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727611","url":null,"abstract":"The aim of this work is to develop a system that can deliver the sense of smell in video game applications to individual gamers for a more immersive video game experience. Currently, there are no such products that deliver this experience in the gaming market. The prototype consists of an aerosol scent canister designed to produce in game specific scents such as gunfire and burning rubber. The canister contains an actuator that is connected to a circuit board. The circuit board is in contact with a USB cord that is compatible with the PC and gaming consoles. A signal from a computer program triggers the actuator to switch the canister scent emission on by using power generated from an AC adaptor.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122144834","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 : 2013-12-01DOI: 10.1109/ICSENST.2013.6727747
Ricardo Felipe Custódio, Ricardo M. Silva, J. Silva, David Nunes, F. Boavida, Carlos Herrera
In the new era of Internet of Things, wireless sensor networks (WSNs) can provide a new way of communication between the Virtual and the Real World. However, mobility has become more and more important in flat WSNs allowing them to expand to new concepts and extending their applicability. Meanwhile, it is also crucial to control losses and support quality of service in these mobile environments. In fact, this is very important for monitoring people's health conditions in hospitals, in military scenarios and in dangerous industrial environments. However, so that an end-user application can take advantage of a mobility scenario, a low level mobile protocol should be implemented in a transparent way for applications. This article presents the implementation details and some evaluation studies of two mobility models for WSNs: one based on the well-known MIPv6 and another one based on our previous work in draft-silva-6lowpan-mipv6.
{"title":"μMobile IPv6 in wireless sensor networks","authors":"Ricardo Felipe Custódio, Ricardo M. Silva, J. Silva, David Nunes, F. Boavida, Carlos Herrera","doi":"10.1109/ICSENST.2013.6727747","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727747","url":null,"abstract":"In the new era of Internet of Things, wireless sensor networks (WSNs) can provide a new way of communication between the Virtual and the Real World. However, mobility has become more and more important in flat WSNs allowing them to expand to new concepts and extending their applicability. Meanwhile, it is also crucial to control losses and support quality of service in these mobile environments. In fact, this is very important for monitoring people's health conditions in hospitals, in military scenarios and in dangerous industrial environments. However, so that an end-user application can take advantage of a mobility scenario, a low level mobile protocol should be implemented in a transparent way for applications. This article presents the implementation details and some evaluation studies of two mobility models for WSNs: one based on the well-known MIPv6 and another one based on our previous work in draft-silva-6lowpan-mipv6.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"99 Suppl 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129468218","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 : 2013-12-01DOI: 10.1109/ICSENST.2013.6727695
H. Liao, H. Tsai, Y. Juang, Ruey-Lue Wang, C. Fu, Chi Yu
In this paper, an ISFET with a built-in gold reference electrode and an integrated readout circuit with frequency-adjustable pulse output is presented. The CMOS chip is based on the TSMC 0.35mm process with post-process gold metallization. The sensing membrane is surrounded with two gold rings, which can be used as a reference electrode or an enzyme-immobilizing material for pH-value or biomolecule-concentration detection. The ISFET is one of the input differential transistor pair of an operational amplifier in its readout circuit, which mainly consists of a voltage-to-current converter and a current-controlled oscillator. The output pulse frequency is linearly proportional to the effective gate voltage of the ISFET, which is immersed in the analyzed solution with a stably biasing reference electrode. A current-offset structure is added into the oscillator to shift the transfer characteristic line of the output frequency versus the effective input voltage, which usually varies due to process variation. The transfer characteristics of the pulse frequency versus pH value are measured by an external Ag/AgCl reference electrode and an on-chip gold reference electrode, respectively. The built-in gold reference electrode brings about a larger sensitivity. The measured output transfer characteristics show the sensitivity of more than 2kHz/pH with linearity of 99% at least.
{"title":"ISFET with built-in gold electrode and readout circuit with frequency-adjustable pulse output","authors":"H. Liao, H. Tsai, Y. Juang, Ruey-Lue Wang, C. Fu, Chi Yu","doi":"10.1109/ICSENST.2013.6727695","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727695","url":null,"abstract":"In this paper, an ISFET with a built-in gold reference electrode and an integrated readout circuit with frequency-adjustable pulse output is presented. The CMOS chip is based on the TSMC 0.35mm process with post-process gold metallization. The sensing membrane is surrounded with two gold rings, which can be used as a reference electrode or an enzyme-immobilizing material for pH-value or biomolecule-concentration detection. The ISFET is one of the input differential transistor pair of an operational amplifier in its readout circuit, which mainly consists of a voltage-to-current converter and a current-controlled oscillator. The output pulse frequency is linearly proportional to the effective gate voltage of the ISFET, which is immersed in the analyzed solution with a stably biasing reference electrode. A current-offset structure is added into the oscillator to shift the transfer characteristic line of the output frequency versus the effective input voltage, which usually varies due to process variation. The transfer characteristics of the pulse frequency versus pH value are measured by an external Ag/AgCl reference electrode and an on-chip gold reference electrode, respectively. The built-in gold reference electrode brings about a larger sensitivity. The measured output transfer characteristics show the sensitivity of more than 2kHz/pH with linearity of 99% at least.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129231085","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 : 2013-12-01DOI: 10.1109/ICSENST.2013.6727765
Jie-Jyun Wan, Joe-Air Jiang, Chia-Pang Chen, P. Chang, Hsin I. Ku, Hsin-Kai Wang, Cheng-Long Chuang, Wen-Chi Huang
In a power delivery system, excessive loads may lead to high temperature of power transmission lines. The extent of aging is proportional to the severity of the thermal overload. How to evaluate aging is an important issue for electric power systems. A critical span refers to a span where the highest conductor temperature occurs in transmission lines and thereby limits how much power can be delivered. In order to monitor real-time temperature of an overhead transmission network, this paper develops a method to simulate a dynamic model for conductor temperature distribution of transmission lines. Proper orthogonal decomposition (POD) is a widely used technique to simulate a spatio-temporal model. For high-dimensional data, POD is an efficient method to reduce the complexity of modeling. Furthermore, an extension of POD - the gappy POD - is used in this study to determine the critical spans so as to reconstruct the conductor temperature distributions of all spans. The simulation results show that the proposed method provides an efficient way of estimating transmission conductor temperature with high accuracy. The average mean square error is less than 10-4. Through building a transmission conductor temperature model, the critical span of transmission lines are determined so that effective management and scheduling in real time for power delivery systems can be achieved.
{"title":"Determination of critical span in real time using proper orthogonal decomposition","authors":"Jie-Jyun Wan, Joe-Air Jiang, Chia-Pang Chen, P. Chang, Hsin I. Ku, Hsin-Kai Wang, Cheng-Long Chuang, Wen-Chi Huang","doi":"10.1109/ICSENST.2013.6727765","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727765","url":null,"abstract":"In a power delivery system, excessive loads may lead to high temperature of power transmission lines. The extent of aging is proportional to the severity of the thermal overload. How to evaluate aging is an important issue for electric power systems. A critical span refers to a span where the highest conductor temperature occurs in transmission lines and thereby limits how much power can be delivered. In order to monitor real-time temperature of an overhead transmission network, this paper develops a method to simulate a dynamic model for conductor temperature distribution of transmission lines. Proper orthogonal decomposition (POD) is a widely used technique to simulate a spatio-temporal model. For high-dimensional data, POD is an efficient method to reduce the complexity of modeling. Furthermore, an extension of POD - the gappy POD - is used in this study to determine the critical spans so as to reconstruct the conductor temperature distributions of all spans. The simulation results show that the proposed method provides an efficient way of estimating transmission conductor temperature with high accuracy. The average mean square error is less than 10-4. Through building a transmission conductor temperature model, the critical span of transmission lines are determined so that effective management and scheduling in real time for power delivery systems can be achieved.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123968582","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 : 2013-12-01DOI: 10.1109/ICSENST.2013.6727711
J. Manit, P. Youngkong
Gait parameters such as step and stride lengths, step and stride times, and time spent in single and double support are important factors for physicians to diagnose and/or monitor patients. Typically, assessing these spatial and temporal parameters accurately require an expensive equipment, which cannot be afforded by most general hospitals in developing countries. This paper presents a light-weight and easy-to-use gait analysing system called TailGait, which allows users to be able to measure these essential gait parameters. A concept of measuring the displacement of trunk as the stepping distance has been proposed, instead of using inertia measurement sensors which cannot avoid the integration error. TailGait has been compared with Computer Dyno Graphy (GDC), a commercial gait analysis system. The result shows that temporal and spatial parameters can be collected precisely by the TailGait and there is a possibility to apply this system for clinical tests in the future.
{"title":"TailGait: A light-weight wearable gait analysis system","authors":"J. Manit, P. Youngkong","doi":"10.1109/ICSENST.2013.6727711","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727711","url":null,"abstract":"Gait parameters such as step and stride lengths, step and stride times, and time spent in single and double support are important factors for physicians to diagnose and/or monitor patients. Typically, assessing these spatial and temporal parameters accurately require an expensive equipment, which cannot be afforded by most general hospitals in developing countries. This paper presents a light-weight and easy-to-use gait analysing system called TailGait, which allows users to be able to measure these essential gait parameters. A concept of measuring the displacement of trunk as the stepping distance has been proposed, instead of using inertia measurement sensors which cannot avoid the integration error. TailGait has been compared with Computer Dyno Graphy (GDC), a commercial gait analysis system. The result shows that temporal and spatial parameters can be collected precisely by the TailGait and there is a possibility to apply this system for clinical tests in the future.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"2 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124206084","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}
An Mach-Zehnder (M-Z) interferometer coupled with the nested fiber ring resonator is theoretically demonstrated. The results show that the dispersion sensitivity of the interferometer is significantly enhanced by the strong dispersive response of the resonator. The sensitivity of the temperature sensor based on the nested fiber ring resonator coupled M-Z interferometer can achieve 320rad/°C, about ten times of that in traditional M-Z interferometer.
{"title":"Mach-Zehnder interferometer as a temperature sensor based on the nested fiber ring resonator","authors":"Yundong Zhang, Kaiyang Wang, Haiping Wang, Changqiu Yu, Chi Xu, Yuhua Zhang","doi":"10.1109/ICSENST.2013.6727647","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727647","url":null,"abstract":"An Mach-Zehnder (M-Z) interferometer coupled with the nested fiber ring resonator is theoretically demonstrated. The results show that the dispersion sensitivity of the interferometer is significantly enhanced by the strong dispersive response of the resonator. The sensitivity of the temperature sensor based on the nested fiber ring resonator coupled M-Z interferometer can achieve 320rad/°C, about ten times of that in traditional M-Z interferometer.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123482739","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 : 2013-12-01DOI: 10.1109/ICSENST.2013.6727628
Bum-Joon Kim, Jung-Sik Kim
A MOSFET gas sensor with platinum gate for hydrogen gas detection was designed, fabricated and characterized for sensing response and stability to outer environment. The dual-gate FET hydrogen sensor was integrated with a micro-heater and two Pt-gate FETs; a sensing device for hydrogen detection, and a reference device for electrical compensation. The identical output between the sensitive-FET and reference-FET was stable at the range from room temperature to 250°C due to the same temperature dependence of the current-voltage (I-V) characteristics. The Pt-FET sensor showed stable responses to hydrogen at a range of operation temperatures. The optimal operating temperature with 5,000 ppm H2 was approximately 150°C at which the sensing response as drain current change was 0.112 mA. Also, the response and recovery times were 18 sec and 19 sec, respectively. The fabricated sensor showed low power consumption (45.5 mW at 150°C) by achieving complete heat isolation. The low-power MOSFET gas sensor can be suitable for applications in portable gas monitoring units and automobiles.
{"title":"Highly sensitive and stable MOSFET-type hydrogen sensor with dual FETs","authors":"Bum-Joon Kim, Jung-Sik Kim","doi":"10.1109/ICSENST.2013.6727628","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727628","url":null,"abstract":"A MOSFET gas sensor with platinum gate for hydrogen gas detection was designed, fabricated and characterized for sensing response and stability to outer environment. The dual-gate FET hydrogen sensor was integrated with a micro-heater and two Pt-gate FETs; a sensing device for hydrogen detection, and a reference device for electrical compensation. The identical output between the sensitive-FET and reference-FET was stable at the range from room temperature to 250°C due to the same temperature dependence of the current-voltage (I-V) characteristics. The Pt-FET sensor showed stable responses to hydrogen at a range of operation temperatures. The optimal operating temperature with 5,000 ppm H2 was approximately 150°C at which the sensing response as drain current change was 0.112 mA. Also, the response and recovery times were 18 sec and 19 sec, respectively. The fabricated sensor showed low power consumption (45.5 mW at 150°C) by achieving complete heat isolation. The low-power MOSFET gas sensor can be suitable for applications in portable gas monitoring units and automobiles.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116272402","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 : 2013-12-01DOI: 10.1109/ICSENST.2013.6727677
V. Narayanan, H. Sreehari, S. Nair
The measurement of refractive index of liquids is of great importance as it is its prime optical property. There are several methods of refractive index measurement for liquids. But the accuracy of measurement is influenced by temperature fluctuations. In this paper, a method is proposed for the implementation of an accurate, portable and temperature resilient, fiber based refractometer for liquids. The analog front end of the refracto meter alone is a cost effective adulteration detector. It can be calibrated to measure the amount of adulteration or absolute refractive index of liquids. The temperature resilience in measurement is achieved using an instrumentation amplifier with high Common Mode Rejection Ratio (CMRR). This refractometer is implemented both using glass and plastic fibers.
{"title":"Temperature resilient measurement of refractive index for liquids","authors":"V. Narayanan, H. Sreehari, S. Nair","doi":"10.1109/ICSENST.2013.6727677","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727677","url":null,"abstract":"The measurement of refractive index of liquids is of great importance as it is its prime optical property. There are several methods of refractive index measurement for liquids. But the accuracy of measurement is influenced by temperature fluctuations. In this paper, a method is proposed for the implementation of an accurate, portable and temperature resilient, fiber based refractometer for liquids. The analog front end of the refracto meter alone is a cost effective adulteration detector. It can be calibrated to measure the amount of adulteration or absolute refractive index of liquids. The temperature resilience in measurement is achieved using an instrumentation amplifier with high Common Mode Rejection Ratio (CMRR). This refractometer is implemented both using glass and plastic fibers.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114788919","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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