Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757153
J. Heo, Ju-young Kim, Jung-Ju Lee
This paper describes two kinds of the tactile sensors using the optical fiber sensors. One is the tactile sensor using fiber Bragg grating (FBG) sensor. Bragg grating inscribed in an optical fiber causes reflect of a spectral component at the Bragg wavelength. This sensor can detect external force using change of the reflective wavelength. The other is the tactile sensor using the microbending optical fiber (MBOF) sensors. The microbending of the optical fiber drives the light transmission loss from the optical fiber. Using the light loss, this sensor can also detect the external force. The structures of these type tactile sensors are very simple. The tactile sensor using FBG sensor consists of an optical fiber which has a Bragg grating and bridge type transducers, and using MBOF sensors is composed of crossed fibers in the silicone rubber. In this paper, we fabricated and evaluated both tactile sensors. The performances of both tactile sensors were verified.
{"title":"Tactile sensors using the distributed optical fiber sensors","authors":"J. Heo, Ju-young Kim, Jung-Ju Lee","doi":"10.1109/ICSENST.2008.4757153","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757153","url":null,"abstract":"This paper describes two kinds of the tactile sensors using the optical fiber sensors. One is the tactile sensor using fiber Bragg grating (FBG) sensor. Bragg grating inscribed in an optical fiber causes reflect of a spectral component at the Bragg wavelength. This sensor can detect external force using change of the reflective wavelength. The other is the tactile sensor using the microbending optical fiber (MBOF) sensors. The microbending of the optical fiber drives the light transmission loss from the optical fiber. Using the light loss, this sensor can also detect the external force. The structures of these type tactile sensors are very simple. The tactile sensor using FBG sensor consists of an optical fiber which has a Bragg grating and bridge type transducers, and using MBOF sensors is composed of crossed fibers in the silicone rubber. In this paper, we fabricated and evaluated both tactile sensors. The performances of both tactile sensors were verified.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"119 5 1","pages":"486-490"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88751774","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757114
T. Machappa, K. Anilkumar, M. Sasikala, M. A. Ambika Prasad
Sensor setup for the measurement of humidity was designed using square glass chamber provided with sample holder, vaporizer, hygrometer and temperature display. Using this set up, authors have studied the response time of the sensor setup and humidity sensing properties for Polyaniline (PANI) and PANI/sodium metavanadate (NaVO3) composites. The variation in electrical resistance with change in relative humidity (RH) in the range between 20 to 95% of RH is reported and this may be due to change in surface electrical resistance. The variation in resistance and hence conductivity depends on capillary condensation of water causing ionic conductivity within the sensing materials.
{"title":"Design of sensor setup and study of humidity sensing behaviour of conducting polyaniline / ceramic composites","authors":"T. Machappa, K. Anilkumar, M. Sasikala, M. A. Ambika Prasad","doi":"10.1109/ICSENST.2008.4757114","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757114","url":null,"abstract":"Sensor setup for the measurement of humidity was designed using square glass chamber provided with sample holder, vaporizer, hygrometer and temperature display. Using this set up, authors have studied the response time of the sensor setup and humidity sensing properties for Polyaniline (PANI) and PANI/sodium metavanadate (NaVO3) composites. The variation in electrical resistance with change in relative humidity (RH) in the range between 20 to 95% of RH is reported and this may be due to change in surface electrical resistance. The variation in resistance and hence conductivity depends on capillary condensation of water causing ionic conductivity within the sensing materials.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"1 1","pages":"284-288"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86920145","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757181
A. Lay-Ekuakille, G. Vendramin, A. Trotta
New severe requirements of measurements of anaesthetic gaseous components oblige to be accurate in evaluating concentrations in hospital facilities, especially in surgical pavilions. Exposure to anaesthetic gases in the health sector, whether in the operating room, recovery room, or in the context of outpatient clinics, may entail a health risk for the personnel exposed. Although health care workers are exposed to much lower anaesthetic concentrations than the patients, this exposure often extends over many years. Personnel often indicates fatigue and headaches, especially when occupational hygiene conditions are inadequate. The decisive factors as concerns, the adverse health effects of exposure to anaesthetic gases, are mainly the type of gases used, the length of exposure, and the gas concentrations. This paper aims to describe an alternative procedure of calibrating a photoacoustic instrumentation by extracting signal from acoustic sensors, that are microphones. The alternative procedure is based upon Frost beamformer algorithm preceded by a smoothing thanks to Savitsky-Golay method. A comparison has been performed using the same alternative procedure but by substituting Frost beamformer with a notch filter.
{"title":"Photoacoustic spectroscopy of biomedical gas sensing: Adaptive filtering as calibration","authors":"A. Lay-Ekuakille, G. Vendramin, A. Trotta","doi":"10.1109/ICSENST.2008.4757181","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757181","url":null,"abstract":"New severe requirements of measurements of anaesthetic gaseous components oblige to be accurate in evaluating concentrations in hospital facilities, especially in surgical pavilions. Exposure to anaesthetic gases in the health sector, whether in the operating room, recovery room, or in the context of outpatient clinics, may entail a health risk for the personnel exposed. Although health care workers are exposed to much lower anaesthetic concentrations than the patients, this exposure often extends over many years. Personnel often indicates fatigue and headaches, especially when occupational hygiene conditions are inadequate. The decisive factors as concerns, the adverse health effects of exposure to anaesthetic gases, are mainly the type of gases used, the length of exposure, and the gas concentrations. This paper aims to describe an alternative procedure of calibrating a photoacoustic instrumentation by extracting signal from acoustic sensors, that are microphones. The alternative procedure is based upon Frost beamformer algorithm preceded by a smoothing thanks to Savitsky-Golay method. A comparison has been performed using the same alternative procedure but by substituting Frost beamformer with a notch filter.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"37 1","pages":"626-631"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91391349","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757141
Ri-cheng Luo, Kai Bai, Shao-yu Liu
Particle swarm optimization(PSO) algorithm is one of embranchments of swarm intelligence. The algorithm is a random searching algorithm in nature. It can converge to the global minima more probability and be adept in continuous function optimization. In this paper, partial discharge(PD) localization in power transformer is discussed, The partial discharge source localization by ultrasonic measuring in a power transformer is studied by the Particle Swarm optimization, and the signal parameter estimated model of ultrasonic localization has been established based on the propagation properties of the ultrasonic wave. Experiment results have shown that PSO algorithm possesses high calculation efficiency and high convergence speed, and can efficiently prevent the result from falling into the localized optimum.
{"title":"Study on partial discharge localization by ultrasonic measuring in power transformer based on Particle Swarm Optimization","authors":"Ri-cheng Luo, Kai Bai, Shao-yu Liu","doi":"10.1109/ICSENST.2008.4757141","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757141","url":null,"abstract":"Particle swarm optimization(PSO) algorithm is one of embranchments of swarm intelligence. The algorithm is a random searching algorithm in nature. It can converge to the global minima more probability and be adept in continuous function optimization. In this paper, partial discharge(PD) localization in power transformer is discussed, The partial discharge source localization by ultrasonic measuring in a power transformer is studied by the Particle Swarm optimization, and the signal parameter estimated model of ultrasonic localization has been established based on the propagation properties of the ultrasonic wave. Experiment results have shown that PSO algorithm possesses high calculation efficiency and high convergence speed, and can efficiently prevent the result from falling into the localized optimum.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"145 1","pages":"426-430"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81750039","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757083
K. Gandhi, P. Narayanasamy
In wireless sensor networks, scheduling of mobile element has been an important issue because the data sensed by the sensor node has to be collected by this mobile element so that no data loss occurs. Each sensor node senses the data and collects it in a buffer. A deadline is assigned to each sensor node which implies that after the deadline the buffer will overflow which leads to data loss. Since the mobile element acts as the base station to collect the data, many scheduling algorithms have been proposed so that the deadlines have been met without any data loss. The proposed problem involves the variation in the speed of the mobile element depending upon the sampling frequency of the sensor nodes. The speed has to be increased for nodes with high sampling rate because the buffer overflow will be more for these nodes and therefore the data collection has to be done in an efficient manner. This increase in collection of data by the mobile element will minimize the deadlines to be missed by other nodes. Since the variation in speed element should not increase the energy consumption of the mobile element, simplex method is applied in order to determine the optimal energy consumption for various set of nodes. Simulation with a set of sensor nodes by varying itpsilas deadline shows that the variation in speed of the mobile element does not exceed the optimal energy consumption of the mobile element. Simulation results show that the objective of varying the speed of the mobile element has proved that the number of deadlines missed have been minimized and at the same time it does not exceed the optimal energy consumption required for the mobile nodes.
{"title":"Energy- aware mobile element scheduling in wireless sensor networks","authors":"K. Gandhi, P. Narayanasamy","doi":"10.1109/ICSENST.2008.4757083","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757083","url":null,"abstract":"In wireless sensor networks, scheduling of mobile element has been an important issue because the data sensed by the sensor node has to be collected by this mobile element so that no data loss occurs. Each sensor node senses the data and collects it in a buffer. A deadline is assigned to each sensor node which implies that after the deadline the buffer will overflow which leads to data loss. Since the mobile element acts as the base station to collect the data, many scheduling algorithms have been proposed so that the deadlines have been met without any data loss. The proposed problem involves the variation in the speed of the mobile element depending upon the sampling frequency of the sensor nodes. The speed has to be increased for nodes with high sampling rate because the buffer overflow will be more for these nodes and therefore the data collection has to be done in an efficient manner. This increase in collection of data by the mobile element will minimize the deadlines to be missed by other nodes. Since the variation in speed element should not increase the energy consumption of the mobile element, simplex method is applied in order to determine the optimal energy consumption for various set of nodes. Simulation with a set of sensor nodes by varying itpsilas deadline shows that the variation in speed of the mobile element does not exceed the optimal energy consumption of the mobile element. Simulation results show that the objective of varying the speed of the mobile element has proved that the number of deadlines missed have been minimized and at the same time it does not exceed the optimal energy consumption required for the mobile nodes.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"108 1","pages":"107-113"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81772085","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757189
S. Korposh, S. Kodaira, Seung-Woo Lee, W. Batty, Travis James, R. Tatam
A nano-assembled porous thin film, deposited using the layer-by-layer method and infused with a functional compound, is used for the development of a highly sensitive fibre-optic ammonia sensor. Sensor fabrication involves a 2-stage process: firstly the deposition of the basic porous thin film (poly(diallyldimethylammonium chloride)/SiO2) over a long period grating written in optical fibre, followed by infusion of a porphyrin compound (tetrakis-(4-sulfophenyl)porphine, TSPP), into the porous film. The device shows high sensitivity to ammonia (ca. 1 ppm) when immersed into an aqueous solution.
{"title":"Deposition of SiO2/polymer nanoporous thin films on long-period grating (LPG) optical fibres and dramatic enhancement of the resonance bands","authors":"S. Korposh, S. Kodaira, Seung-Woo Lee, W. Batty, Travis James, R. Tatam","doi":"10.1109/ICSENST.2008.4757189","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757189","url":null,"abstract":"A nano-assembled porous thin film, deposited using the layer-by-layer method and infused with a functional compound, is used for the development of a highly sensitive fibre-optic ammonia sensor. Sensor fabrication involves a 2-stage process: firstly the deposition of the basic porous thin film (poly(diallyldimethylammonium chloride)/SiO2) over a long period grating written in optical fibre, followed by infusion of a porphyrin compound (tetrakis-(4-sulfophenyl)porphine, TSPP), into the porous film. The device shows high sensitivity to ammonia (ca. 1 ppm) when immersed into an aqueous solution.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"19 1","pages":"666-669"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81991469","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757130
Z. Qian, F. Jin, T. Lu, K. Kishimoto
The existence and propagation of Bleustein-Gulyaev (B-G) waves in a functionally graded piezoelectric substrate with exponential variation is studied by analytical technique. The dispersion equations for the existence of the B-G waves with respect to phase velocity are obtained for both electrically open and short conditions. A detailed investigation of the effect of the gradient coefficient on dispersion relation, phase velocity, electromechanical coupling factor is carried out. It is found by numerical examples that adjusting gradient coefficient makes the electromechanical coupling factor of the B-G waves achieve quite high values at some appropriate wave number. Because of the negligible initial stress in functionally graded piezoelectric materials, this model could serve as an excellent substitute for the typical layered piezoelectric structures used in surface acoustic wave (SAW) devices, which provides with a theoretical foundation for designing SAW devices with high performance.
{"title":"Bleustein-Gulyaev waves in a functionally graded piezoelectric half-space with exponential variation","authors":"Z. Qian, F. Jin, T. Lu, K. Kishimoto","doi":"10.1109/ICSENST.2008.4757130","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757130","url":null,"abstract":"The existence and propagation of Bleustein-Gulyaev (B-G) waves in a functionally graded piezoelectric substrate with exponential variation is studied by analytical technique. The dispersion equations for the existence of the B-G waves with respect to phase velocity are obtained for both electrically open and short conditions. A detailed investigation of the effect of the gradient coefficient on dispersion relation, phase velocity, electromechanical coupling factor is carried out. It is found by numerical examples that adjusting gradient coefficient makes the electromechanical coupling factor of the B-G waves achieve quite high values at some appropriate wave number. Because of the negligible initial stress in functionally graded piezoelectric materials, this model could serve as an excellent substitute for the typical layered piezoelectric structures used in surface acoustic wave (SAW) devices, which provides with a theoretical foundation for designing SAW devices with high performance.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"14 1","pages":"370-373"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89015777","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757169
C. K. Bhattacharyya, S. Bhattacharyya
Detecting re-entry of a moving object inside an irregular region is one of the most fundamental challenges of Wireless Sensor Networks. The performance of an effective and efficient sensor network for detecting re-entry of moving object is highly related to the proper configuration and design of the network and effective communication between the sensors deployed. For an irregular space of random shape and size, it is practically very difficult to detect an objectpsilas trajectory within the sensing boundary since boundary is not regular. In this paper we have focused on the conversion of a physically random space (concave) to a logically convex hull so that sensing boundary is well defined and then we have detected the network cuts and pockets within that convex hull to detect the status of the moving object. Here we have adopted the technique of using multiple time consecutive frames from two or more sensors currently sensing the object and exploits the time intensity variations with their geometric diversity among the reentry object and their observer sensors.
{"title":"Detecting re-entry of a moving object in an irregular space","authors":"C. K. Bhattacharyya, S. Bhattacharyya","doi":"10.1109/ICSENST.2008.4757169","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757169","url":null,"abstract":"Detecting re-entry of a moving object inside an irregular region is one of the most fundamental challenges of Wireless Sensor Networks. The performance of an effective and efficient sensor network for detecting re-entry of moving object is highly related to the proper configuration and design of the network and effective communication between the sensors deployed. For an irregular space of random shape and size, it is practically very difficult to detect an objectpsilas trajectory within the sensing boundary since boundary is not regular. In this paper we have focused on the conversion of a physically random space (concave) to a logically convex hull so that sensing boundary is well defined and then we have detected the network cuts and pockets within that convex hull to detect the status of the moving object. Here we have adopted the technique of using multiple time consecutive frames from two or more sensors currently sensing the object and exploits the time intensity variations with their geometric diversity among the reentry object and their observer sensors.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"5 1","pages":"563-568"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86104822","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757126
O. Raoof, H. Al-Raweshidy
Current mobile devices are often equipped with several network interfaces, which may be of different access technologies, both wireless and cellular. Users are looking to improve their ability to connect to the internet and maintain connectivity everywhere and anytime. To this end, one of the main objectives of the next generation networks will be heterogeneity in the wireless access environment in which a mobile terminal will be able to connect to multiple radio networks simultaneously. For these reasons, interface/network selection and efficient load balancing mechanisms among different types of networks will be required to achieve high-speed connectivity with seamless mobility. Game theory is a mathematical tool developed to understand competitive situations in which rational decision makers interact to achieve their objectives. Game theory naturally becomes a useful and powerful tool to research this kind of problems. This paper propose a novel interface/network selection mechanism, which is an extension to the Multi-interface Fast-handover Mobile IPv6 protocol [5]. The mechanism not only enhance the quality of the received traffic, but improves the ability of the user and/or the application to dynamically influence the interface selection during the operation of the mobile device.
{"title":"Design an interface/network selection mechanism for multi-interface FMIPv6 protocol","authors":"O. Raoof, H. Al-Raweshidy","doi":"10.1109/ICSENST.2008.4757126","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757126","url":null,"abstract":"Current mobile devices are often equipped with several network interfaces, which may be of different access technologies, both wireless and cellular. Users are looking to improve their ability to connect to the internet and maintain connectivity everywhere and anytime. To this end, one of the main objectives of the next generation networks will be heterogeneity in the wireless access environment in which a mobile terminal will be able to connect to multiple radio networks simultaneously. For these reasons, interface/network selection and efficient load balancing mechanisms among different types of networks will be required to achieve high-speed connectivity with seamless mobility. Game theory is a mathematical tool developed to understand competitive situations in which rational decision makers interact to achieve their objectives. Game theory naturally becomes a useful and powerful tool to research this kind of problems. This paper propose a novel interface/network selection mechanism, which is an extension to the Multi-interface Fast-handover Mobile IPv6 protocol [5]. The mechanism not only enhance the quality of the received traffic, but improves the ability of the user and/or the application to dynamically influence the interface selection during the operation of the mobile device.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"7 1","pages":"348-353"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82615704","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757128
D. Kourtiche, M. Nadi, A. Rouane, A. Chitnalah
We present a procedure for measurement of the non linear B/A parameter using a simple comparative method. A theoretical model of the measurement system is proposed. A function sensitivity of the system is derived in order to connect the electric and acoustic magnitudes. Thus the optimal conditions in order to avoid complex calculation of the transducers sensitivities were carried out. We showed that the sensitivity function of the measurement system can be kept close to the unit by making a good choice of the fundamental frequency. Indeed if the frequency of the source transducer is chosen less than the resonance frequency we can avoid determining the sensitivities. Measurements had been carried out to validate the procedure and the theoretical aspects.
{"title":"Ultrasound transducer sensitivity in non linear parameter measurement","authors":"D. Kourtiche, M. Nadi, A. Rouane, A. Chitnalah","doi":"10.1109/ICSENST.2008.4757128","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757128","url":null,"abstract":"We present a procedure for measurement of the non linear B/A parameter using a simple comparative method. A theoretical model of the measurement system is proposed. A function sensitivity of the system is derived in order to connect the electric and acoustic magnitudes. Thus the optimal conditions in order to avoid complex calculation of the transducers sensitivities were carried out. We showed that the sensitivity function of the measurement system can be kept close to the unit by making a good choice of the fundamental frequency. Indeed if the frequency of the source transducer is chosen less than the resonance frequency we can avoid determining the sensitivities. Measurements had been carried out to validate the procedure and the theoretical aspects.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"20 1","pages":"358-362"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74624770","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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