Pub Date : 2018-12-01DOI: 10.1109/ICSENST.2018.8603572
Ulrich Baehr, M. Freier, M. Lewis, W. Rosenstiel, O. Bringmann
The rapid progression of MEMS technologies for inertial sensors requires fast and reliable characterization methods at wafer-level. This paper presents a novel method for determining the surface charges and for the measurement of the sensitivity curve of capacitive MEMS accelerometer sensors. The hardware setup relies on fully electrical stimuli and measurement. The test algorithm and the FPGA hardware model represent the core of the testing system. They enable a fast and reliable method for measuring sensor capacitances continuously over time and deriving the sensitivity curve, the offset and surface charge from this data with high accuracy. The precise knowledge of the sensors sensitivity curve supports MEMS designers to verify their models, facilitating a significant improvement in design technology. The offset and the surface charge parameters are used to monitor the production process of acceleration MEMS devices as well as for the development of novel manufacturing technologies. Additionally in this test step a three to seven times reduction in test time compared to the current method is achieved. This will help to lower the costs for MEMS in production by a substantial amount.
{"title":"Rapid Sensitivity Curve Measurement for MEMS Accelerometers","authors":"Ulrich Baehr, M. Freier, M. Lewis, W. Rosenstiel, O. Bringmann","doi":"10.1109/ICSENST.2018.8603572","DOIUrl":"https://doi.org/10.1109/ICSENST.2018.8603572","url":null,"abstract":"The rapid progression of MEMS technologies for inertial sensors requires fast and reliable characterization methods at wafer-level. This paper presents a novel method for determining the surface charges and for the measurement of the sensitivity curve of capacitive MEMS accelerometer sensors. The hardware setup relies on fully electrical stimuli and measurement. The test algorithm and the FPGA hardware model represent the core of the testing system. They enable a fast and reliable method for measuring sensor capacitances continuously over time and deriving the sensitivity curve, the offset and surface charge from this data with high accuracy. The precise knowledge of the sensors sensitivity curve supports MEMS designers to verify their models, facilitating a significant improvement in design technology. The offset and the surface charge parameters are used to monitor the production process of acceleration MEMS devices as well as for the development of novel manufacturing technologies. Additionally in this test step a three to seven times reduction in test time compared to the current method is achieved. This will help to lower the costs for MEMS in production by a substantial amount.","PeriodicalId":181015,"journal":{"name":"2018 12th International Conference on Sensing Technology (ICST)","volume":"36 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":"122074120","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/ICSENST.2018.8603573
Debasmita Mondal, D. Paul, S. Mukherji
A disposable filter paper based electronic tongue using different conducting polymers is developed in this work. Sensors were prepared using Whatman filter papers of dimensions 6 mm × 5 mm coated with different conducting polymers (polyaniline and polypyrrole, both in doped and de-doped form). Two Ag electrodes were deposited with a separation of 4 mm for AC impedance spectroscopic measurements in the frequency range of 10 Hz – 10 kHz with a 100 mV excitation voltage. The developed sensor was subjected to different concentrations of four basic tastants i.e., salty, sweet, sour and umami. The sensitivity of the sensor was found to be better than the human tongue for all the different tastants. The sensors were also used to differentiate between different water samples and fruit juices, with a promising potential for use in food quality monitoring. Use of principal component analysis on the impedance data aided in formation of clusters, thus distinguishing different types of water samples.
利用不同的导电聚合物，研制了一种基于一次性滤纸的电子舌。传感器采用尺寸为6 mm × 5 mm的Whatman滤纸制备，滤纸上涂有不同的导电聚合物(聚苯胺和聚吡咯，掺杂形式和脱掺杂形式)。在100mv激励电压下，在10hz ~ 10khz的频率范围内沉积两个相距4mm的Ag电极，进行交流阻抗光谱测量。研制的传感器经受了不同浓度的盐、甜、酸和鲜味四种基本味觉剂的考验。研究发现，对于所有不同的味道，这种传感器的灵敏度都比人类的舌头要好。这些传感器还被用于区分不同的水样和果汁，在食品质量监测方面具有很大的潜力。对阻抗数据的主成分分析有助于形成簇，从而区分不同类型的水样。
{"title":"Conducting polymer coated filter paper based disposable electronic tongue","authors":"Debasmita Mondal, D. Paul, S. Mukherji","doi":"10.1109/ICSENST.2018.8603573","DOIUrl":"https://doi.org/10.1109/ICSENST.2018.8603573","url":null,"abstract":"A disposable filter paper based electronic tongue using different conducting polymers is developed in this work. Sensors were prepared using Whatman filter papers of dimensions 6 mm × 5 mm coated with different conducting polymers (polyaniline and polypyrrole, both in doped and de-doped form). Two Ag electrodes were deposited with a separation of 4 mm for AC impedance spectroscopic measurements in the frequency range of 10 Hz – 10 kHz with a 100 mV excitation voltage. The developed sensor was subjected to different concentrations of four basic tastants i.e., salty, sweet, sour and umami. The sensitivity of the sensor was found to be better than the human tongue for all the different tastants. The sensors were also used to differentiate between different water samples and fruit juices, with a promising potential for use in food quality monitoring. Use of principal component analysis on the impedance data aided in formation of clusters, thus distinguishing different types of water samples.","PeriodicalId":181015,"journal":{"name":"2018 12th International Conference on Sensing Technology (ICST)","volume":"16 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":"122113472","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/ICSENST.2018.8603638
Tapabrata Sen, C. Anoop, S. Sen
Magnetic-feedback approach for improving the characteristic of a GMR sensor has been attempted in some research works. These works demonstrated an improvement in the linearity, hysteresis of the GMR characteristic and also facilitate measurement of negative fields. In this work, an improved field-feedback approach for GMR (FFG) sensors has been presented. It has been shown that the FFG improves the above characteristics of the sensor and also increases its measuring field range. An integrator circuit has been included in the FFG design. The integrator improves the dynamic response of the conventional feedback approach, by increasing overall system-damping. Moreover, it also facilities use of high loop-gain in the circuit which helps to reduce measurement error. The FFG, additionally, implements a dual-operating point technique, suitable for static fields. The output in the conventional feedback approach is largely dependent on an electromagnetic coil, present in the circuit. Dual-operating points, for biasing the GMR sensor, can be used to eliminate the effect of this parameter, completely. Extensive simulation results validate both these inclusions. It shows a reduction of error from 18 % to a negligible value, with dual-operating point technique, for static input fields. Subsequent experimental results, with a suitable prototype, further affirm the working and utility of the FFG.
{"title":"Efficacy Studies of a Novel Field Feedback Circuit for Giant Magnetoresistance Sensors","authors":"Tapabrata Sen, C. Anoop, S. Sen","doi":"10.1109/ICSENST.2018.8603638","DOIUrl":"https://doi.org/10.1109/ICSENST.2018.8603638","url":null,"abstract":"Magnetic-feedback approach for improving the characteristic of a GMR sensor has been attempted in some research works. These works demonstrated an improvement in the linearity, hysteresis of the GMR characteristic and also facilitate measurement of negative fields. In this work, an improved field-feedback approach for GMR (FFG) sensors has been presented. It has been shown that the FFG improves the above characteristics of the sensor and also increases its measuring field range. An integrator circuit has been included in the FFG design. The integrator improves the dynamic response of the conventional feedback approach, by increasing overall system-damping. Moreover, it also facilities use of high loop-gain in the circuit which helps to reduce measurement error. The FFG, additionally, implements a dual-operating point technique, suitable for static fields. The output in the conventional feedback approach is largely dependent on an electromagnetic coil, present in the circuit. Dual-operating points, for biasing the GMR sensor, can be used to eliminate the effect of this parameter, completely. Extensive simulation results validate both these inclusions. It shows a reduction of error from 18 % to a negligible value, with dual-operating point technique, for static input fields. Subsequent experimental results, with a suitable prototype, further affirm the working and utility of the FFG.","PeriodicalId":181015,"journal":{"name":"2018 12th International Conference on Sensing Technology (ICST)","volume":"5 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":"124969988","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/ICSENST.2018.8603566
Yang Feng, Junyi He, Weipeng An, C. Flanagan, Ciaran MacNamee, S. McGrath
In many countries, due to the exhaustion of industrial production and the exhaust emissions of a large number of fuel vehicles, air pollution problems are also increasing, which has a negative impact on the ecological environment and people’s health. Reducing the impact of air pollution on people and improving air quality are inseparable from the monitoring of air. The following problems are common in previous air monitoring systems: large energy consumption, short-life, limited communication distance, and high maintenance cost. In this paper, an air pollution index (API) monitoring system was built using the Internet of Things technology and Sigfox low-power wide area network (LPWAN) communication technology to solve the above problems, and this air pollution monitoring system was tested at the University of Limerick.
{"title":"API Monitor based on Internet of Things technology","authors":"Yang Feng, Junyi He, Weipeng An, C. Flanagan, Ciaran MacNamee, S. McGrath","doi":"10.1109/ICSENST.2018.8603566","DOIUrl":"https://doi.org/10.1109/ICSENST.2018.8603566","url":null,"abstract":"In many countries, due to the exhaustion of industrial production and the exhaust emissions of a large number of fuel vehicles, air pollution problems are also increasing, which has a negative impact on the ecological environment and people’s health. Reducing the impact of air pollution on people and improving air quality are inseparable from the monitoring of air. The following problems are common in previous air monitoring systems: large energy consumption, short-life, limited communication distance, and high maintenance cost. In this paper, an air pollution index (API) monitoring system was built using the Internet of Things technology and Sigfox low-power wide area network (LPWAN) communication technology to solve the above problems, and this air pollution monitoring system was tested at the University of Limerick.","PeriodicalId":181015,"journal":{"name":"2018 12th International Conference on Sensing Technology (ICST)","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":"129869722","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/ICSENST.2018.8603651
Naoki Komiya, Mikihiro Tokuoka, Ryohei Egusa, S. Inagaki, H. Mizoguchi, M. Namatame, F. Kusunoki
The number of diabetic patients are increasing worldwide. Increasing calorie expenditure is one of the methods to prevent diabetes. Measuring the current calorie expenditure can improve awareness in daily life and help increase calorie expenditure. Conventional research has estimated calorie expenditure using an acceleration sensor. However, in contact sensors such as acceleration sensors, the estimation accuracy changes with the mounting position. Therefore, we aim to estimate calorie expenditure using non-contact sensors that do not need to be worn by the user. In this study, we conducted experiments to evaluate the effectiveness of estimating calorie expenditure using a 3D range image sensor, which is a non-contact sensor. The effectiveness of the proposed method was verified by the results of the evaluation.
{"title":"Novel Application of 3D Range Image Sensor to Caloric Expenditure Estimation based on Human Body Measurement","authors":"Naoki Komiya, Mikihiro Tokuoka, Ryohei Egusa, S. Inagaki, H. Mizoguchi, M. Namatame, F. Kusunoki","doi":"10.1109/ICSENST.2018.8603651","DOIUrl":"https://doi.org/10.1109/ICSENST.2018.8603651","url":null,"abstract":"The number of diabetic patients are increasing worldwide. Increasing calorie expenditure is one of the methods to prevent diabetes. Measuring the current calorie expenditure can improve awareness in daily life and help increase calorie expenditure. Conventional research has estimated calorie expenditure using an acceleration sensor. However, in contact sensors such as acceleration sensors, the estimation accuracy changes with the mounting position. Therefore, we aim to estimate calorie expenditure using non-contact sensors that do not need to be worn by the user. In this study, we conducted experiments to evaluate the effectiveness of estimating calorie expenditure using a 3D range image sensor, which is a non-contact sensor. The effectiveness of the proposed method was verified by the results of the evaluation.","PeriodicalId":181015,"journal":{"name":"2018 12th International Conference on Sensing Technology (ICST)","volume":"12 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":"115605793","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/ICSENST.2018.8603623
Anuroop, D. Bansal, Khushbu, Prem Kumar, Amit Kumar, K. Rangra
RF MEMS switches are small in size, consume low power and have good RF response. However, the field deployment of RF MEMS switches is restricted due to limited power handling capability and reliability issues. In literature, power handling is improved through contact area either by adding hard materials or increasing the thickness. In the present paper, calculations for contact area versus stiction forces are performed and RF MEMS ohmic switch with optimal contact area is proposed and fabricated. The power handling of RF MEMS switch is increased by 55.86% without the addition of new material or processing steps. Insertion loss and return loss of the switch are also improved using corner compensation.
{"title":"Contact Area Design of Ohmic RF MEMS Switch for Enhanced Power Handling","authors":"Anuroop, D. Bansal, Khushbu, Prem Kumar, Amit Kumar, K. Rangra","doi":"10.1109/ICSENST.2018.8603623","DOIUrl":"https://doi.org/10.1109/ICSENST.2018.8603623","url":null,"abstract":"RF MEMS switches are small in size, consume low power and have good RF response. However, the field deployment of RF MEMS switches is restricted due to limited power handling capability and reliability issues. In literature, power handling is improved through contact area either by adding hard materials or increasing the thickness. In the present paper, calculations for contact area versus stiction forces are performed and RF MEMS ohmic switch with optimal contact area is proposed and fabricated. The power handling of RF MEMS switch is increased by 55.86% without the addition of new material or processing steps. Insertion loss and return loss of the switch are also improved using corner compensation.","PeriodicalId":181015,"journal":{"name":"2018 12th International Conference on Sensing Technology (ICST)","volume":"26 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113938406","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/ICSENST.2018.8603660
Carlos Nave, Yongsheng Yang, V. Viegas, O. Postolache
This paper describes a smart walker based on Arduino Mega computation platform and multiple sensing channels to materialize a Physical Rehabilitation Internet of Things System. The system extracts metrics such as orientation, the number of steps performed, bilateral walker elevation and the patients balance using Inertial Measurement Units, ultrasound and Load Cell sensors. Such metrics are stored in a remote server and available through a system’s web and mobile app.
{"title":"Physical Rehabilitation based on Smart Walker","authors":"Carlos Nave, Yongsheng Yang, V. Viegas, O. Postolache","doi":"10.1109/ICSENST.2018.8603660","DOIUrl":"https://doi.org/10.1109/ICSENST.2018.8603660","url":null,"abstract":"This paper describes a smart walker based on Arduino Mega computation platform and multiple sensing channels to materialize a Physical Rehabilitation Internet of Things System. The system extracts metrics such as orientation, the number of steps performed, bilateral walker elevation and the patients balance using Inertial Measurement Units, ultrasound and Load Cell sensors. Such metrics are stored in a remote server and available through a system’s web and mobile app.","PeriodicalId":181015,"journal":{"name":"2018 12th International Conference on Sensing Technology (ICST)","volume":"412 2 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":"131407839","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/ICSENST.2018.8603648
Anjali Khatri, Arvind Dhawangale, S. Mukherji
A novel low-cost surface plasmon resonance (SPR) based platform is demonstrated using polymer optical waveguides. U-shaped polyester OHP sheet waveguides sputtered with a thin gold film were used as SPR substrates. Bulk RI sensitivity of 639 nm/RIU and sensor resolution of 0.34 mRIU was achieved.
{"title":"Surface plasmon resonance based sensor using polyester OHP sheet waveguides","authors":"Anjali Khatri, Arvind Dhawangale, S. Mukherji","doi":"10.1109/ICSENST.2018.8603648","DOIUrl":"https://doi.org/10.1109/ICSENST.2018.8603648","url":null,"abstract":"A novel low-cost surface plasmon resonance (SPR) based platform is demonstrated using polymer optical waveguides. U-shaped polyester OHP sheet waveguides sputtered with a thin gold film were used as SPR substrates. Bulk RI sensitivity of 639 nm/RIU and sensor resolution of 0.34 mRIU was achieved.","PeriodicalId":181015,"journal":{"name":"2018 12th International Conference on Sensing Technology (ICST)","volume":"27 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":"123470780","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/ICSENST.2018.8603601
Sandeep Pirbhulal, Wanqing Wu, S. Mukhopadhyay, Guanglin Li
Emerging trends in smart healthcare have revolutionized the medical market from child care to elderly patients. Internet of medical things (IoMT) in association with other state-of-the-art technologies playing the significant role in every field, but due to its autonomous and self-adaptive nature there is a great attention of everyone from each field particularly healthcare domain. For the disabled patients, it is very vital that a system must be self-driven and adaptive for facilitating them at every walk of their lives. In this regard, adaptive strategies with intelligent systems are the optimal solution for the medical applications. One of the critical challenges for the all miniaturized sensor devices is their resource-constrained nature while coping-up with the several issues during information exchanging and sharing knowledge with each other and intended device. Thus by keeping this dire need in mind, it is important to focus the adaptive transmission power control (TPC) based mechanism to fairly allocate the resources and facilitate the disabled patients. This paper proposes the novel adaptive energy optimization algorithm (AEOA) by adjusting the characteristics of the healthcare platform. Experimental results reveal that proposed AEOA outperforms the conventional methods by saving energy in the IoMT.
{"title":"Adaptive Energy Optimization Algorithm for Internet of Medical Things","authors":"Sandeep Pirbhulal, Wanqing Wu, S. Mukhopadhyay, Guanglin Li","doi":"10.1109/ICSENST.2018.8603601","DOIUrl":"https://doi.org/10.1109/ICSENST.2018.8603601","url":null,"abstract":"Emerging trends in smart healthcare have revolutionized the medical market from child care to elderly patients. Internet of medical things (IoMT) in association with other state-of-the-art technologies playing the significant role in every field, but due to its autonomous and self-adaptive nature there is a great attention of everyone from each field particularly healthcare domain. For the disabled patients, it is very vital that a system must be self-driven and adaptive for facilitating them at every walk of their lives. In this regard, adaptive strategies with intelligent systems are the optimal solution for the medical applications. One of the critical challenges for the all miniaturized sensor devices is their resource-constrained nature while coping-up with the several issues during information exchanging and sharing knowledge with each other and intended device. Thus by keeping this dire need in mind, it is important to focus the adaptive transmission power control (TPC) based mechanism to fairly allocate the resources and facilitate the disabled patients. This paper proposes the novel adaptive energy optimization algorithm (AEOA) by adjusting the characteristics of the healthcare platform. Experimental results reveal that proposed AEOA outperforms the conventional methods by saving energy in the IoMT.","PeriodicalId":181015,"journal":{"name":"2018 12th International Conference on Sensing Technology (ICST)","volume":"23 2 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":"114319972","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/ICSENST.2018.8603552
E. Bastos, C. B. Nunes, F. Missell
This work describes a magneto-elastic strain sensor based on the ΔE effect and discusses some of the materials used in its construction. A polycrystalline FeAlB alloy with a magnetostriction around 80 ppm was used as the transducer and was glued to the test object, in this case, rods of SAE 1010 steel. The magnetic field of the transducer modified the operating point of the resonator, a strip of field-annealed Metglas 2826MB3, resulting in a modification of its resonant frequency. For a sensor with resonant frequency of 60.5 kHz, a total resonant frequency variation Δf ~ 7 kHz was observed for a deformation of 1100 ppm. We conclude that the wireless monitoring of a steel surface would be possible with this device.
{"title":"Magneto-elastic Strain Sensors for Use on Steel Rods","authors":"E. Bastos, C. B. Nunes, F. Missell","doi":"10.1109/ICSENST.2018.8603552","DOIUrl":"https://doi.org/10.1109/ICSENST.2018.8603552","url":null,"abstract":"This work describes a magneto-elastic strain sensor based on the ΔE effect and discusses some of the materials used in its construction. A polycrystalline FeAlB alloy with a magnetostriction around 80 ppm was used as the transducer and was glued to the test object, in this case, rods of SAE 1010 steel. The magnetic field of the transducer modified the operating point of the resonator, a strip of field-annealed Metglas 2826MB3, resulting in a modification of its resonant frequency. For a sensor with resonant frequency of 60.5 kHz, a total resonant frequency variation Δf ~ 7 kHz was observed for a deformation of 1100 ppm. We conclude that the wireless monitoring of a steel surface would be possible with this device.","PeriodicalId":181015,"journal":{"name":"2018 12th International Conference on Sensing Technology (ICST)","volume":"19 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":"117185000","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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