Pub Date : 2017-08-01DOI: 10.1109/INSCIT.2017.8103530
M. G. Bernardo, Raimundo Carlos da Silva Veria Freire, Anyelle Keila Farias de Queiroz, J. I. L. Araujo, S. Morais, A. Serres, Paulo Fernandes da Silva
This paper presents the development of aperture-coupled patch antennas operating in industrial scientific and medical band at 60 GHz (57 GHZ to 64 GHz), with square and circular shapes, for on-chip application. The aperture-coupled antenna proposed is composed by a transmission feed line, an aperture and patch element built in aluminum with 10 micrometers of thickness lying on two layers of silicon with height of 200 micrometers. Dimensions of the square and circular antennas were calculated according to the effective wavelength for resonance frequency at 60 GHz in order to match at 50 Ohms. The proposed antennas have been simulated using the commercial software ANSYS. Both antennas show omnidirectional radiation pattern, with half power beamwidth greater than 149 degrees. Square patch presented a more compact structure, with dimension less than 1.55 mm, return loss of −55 dB, and bandwidth of 3.98 GHz, however the circular antenna, with a greater metallic area, achieved a better gain of 5.88 dBi.
{"title":"Aperture-coupled on-chip patch antennas for ISM band 60 GHz","authors":"M. G. Bernardo, Raimundo Carlos da Silva Veria Freire, Anyelle Keila Farias de Queiroz, J. I. L. Araujo, S. Morais, A. Serres, Paulo Fernandes da Silva","doi":"10.1109/INSCIT.2017.8103530","DOIUrl":"https://doi.org/10.1109/INSCIT.2017.8103530","url":null,"abstract":"This paper presents the development of aperture-coupled patch antennas operating in industrial scientific and medical band at 60 GHz (57 GHZ to 64 GHz), with square and circular shapes, for on-chip application. The aperture-coupled antenna proposed is composed by a transmission feed line, an aperture and patch element built in aluminum with 10 micrometers of thickness lying on two layers of silicon with height of 200 micrometers. Dimensions of the square and circular antennas were calculated according to the effective wavelength for resonance frequency at 60 GHz in order to match at 50 Ohms. The proposed antennas have been simulated using the commercial software ANSYS. Both antennas show omnidirectional radiation pattern, with half power beamwidth greater than 149 degrees. Square patch presented a more compact structure, with dimension less than 1.55 mm, return loss of −55 dB, and bandwidth of 3.98 GHz, however the circular antenna, with a greater metallic area, achieved a better gain of 5.88 dBi.","PeriodicalId":416167,"journal":{"name":"2017 2nd International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133172811","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 : 2017-08-01DOI: 10.1109/INSCIT.2017.8103524
F. T. D. A. Silva, F. Vasconcelos, H. de Oliveira Mota
On-site measurement of partial discharges (PD) can provide valuable information about electrical equipment insulation degradation. Classical signal processing techniques have been used for PD signal denoising, but few approaches evaluate or present effective methods to attenuate impulsive and amplitude modulated (AM) noises, which are commonly found in on-site measurements. In this paper, a PD denoising method based on an over complete wavelet dictionary and Basis Pursuit Denoising (BPD) is presented. We describe the overall denoising algorithm and propose a methodology to compose the over complete dictionaries, starting from candidate wavelet families. The procedure starts by identifying the best families, followed by a method to define the number of families and their best combination. We show that the procedure gives better results when compared to a random choice of families, and present several processing cases based on simulated and measured signals.
{"title":"A systematic method to compose over complete dictionaries for the processing of partial discharge signals","authors":"F. T. D. A. Silva, F. Vasconcelos, H. de Oliveira Mota","doi":"10.1109/INSCIT.2017.8103524","DOIUrl":"https://doi.org/10.1109/INSCIT.2017.8103524","url":null,"abstract":"On-site measurement of partial discharges (PD) can provide valuable information about electrical equipment insulation degradation. Classical signal processing techniques have been used for PD signal denoising, but few approaches evaluate or present effective methods to attenuate impulsive and amplitude modulated (AM) noises, which are commonly found in on-site measurements. In this paper, a PD denoising method based on an over complete wavelet dictionary and Basis Pursuit Denoising (BPD) is presented. We describe the overall denoising algorithm and propose a methodology to compose the over complete dictionaries, starting from candidate wavelet families. The procedure starts by identifying the best families, followed by a method to define the number of families and their best combination. We show that the procedure gives better results when compared to a random choice of families, and present several processing cases based on simulated and measured signals.","PeriodicalId":416167,"journal":{"name":"2017 2nd International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"20 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121916337","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 : 2017-08-01DOI: 10.1109/INSCIT.2017.8103516
Luciano Lourenço F. da Silva, Jair Fernandes de Souza, M. Pelegrini, C. A. de Moraes Cruz, V. F. Cardoso
An alternative electrical model for Ion-Sensitive Field-Effect Transistor (ISFET) sensors is presented in this work. The proposed model is worth to be employed in both DC and transient simulations where the behavior of the ISFET sensor coupled to its readout circuit can therefore be investigated. Whereas, previous models found in the literature could only be employed to perform DC simulations. The electrochemical stage of an ISFET is responsible to emulate the device's sensitivity to ion concentration. The alternative electrical model enables the representation of the ISFET electrochemical stage through a much simpler circuit topology than those found in the literature, without loss of generality. The simulation results employing the proposed ISFET model are compliant with those presented in the literature, asserting thus its effectiveness.
{"title":"A novel electrical circuit model for ion-sensitive field-effect transistor","authors":"Luciano Lourenço F. da Silva, Jair Fernandes de Souza, M. Pelegrini, C. A. de Moraes Cruz, V. F. Cardoso","doi":"10.1109/INSCIT.2017.8103516","DOIUrl":"https://doi.org/10.1109/INSCIT.2017.8103516","url":null,"abstract":"An alternative electrical model for Ion-Sensitive Field-Effect Transistor (ISFET) sensors is presented in this work. The proposed model is worth to be employed in both DC and transient simulations where the behavior of the ISFET sensor coupled to its readout circuit can therefore be investigated. Whereas, previous models found in the literature could only be employed to perform DC simulations. The electrochemical stage of an ISFET is responsible to emulate the device's sensitivity to ion concentration. The alternative electrical model enables the representation of the ISFET electrochemical stage through a much simpler circuit topology than those found in the literature, without loss of generality. The simulation results employing the proposed ISFET model are compliant with those presented in the literature, asserting thus its effectiveness.","PeriodicalId":416167,"journal":{"name":"2017 2nd International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125282514","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 : 2017-08-01DOI: 10.1109/INSCIT.2017.8103514
D. M. Souza, I. A. Costa, T. A. Alvarenga, A. Losqui, R. Nobrega
This paper proposes a detailed evaluation of the impact of digital filters when applied to the Neutrinos Angra Experiment. The signals coming out from its front-end electronics are digitized and then sent to an FPGA where further processing might be carried out. In this context, this work proposes a set of peak amplitude estimators optimized to have minimum variance. Constrained optimization technique has been considered in order to build up estimators less sensitive to signal pedestal and phase variations. Those estimators are carefully characterized for the Neutrinos Angra system, where peak amplitude is considered to be proportional to the energy left by crossing particles. The implemented study is based on single photoelectron signals as produced at the end of the experiment readout chain, after their digitization. The applied methodology and the achieved results are presented in the following.
{"title":"BLUE estimator applied to energy measurement for the ν-Angra experiment","authors":"D. M. Souza, I. A. Costa, T. A. Alvarenga, A. Losqui, R. Nobrega","doi":"10.1109/INSCIT.2017.8103514","DOIUrl":"https://doi.org/10.1109/INSCIT.2017.8103514","url":null,"abstract":"This paper proposes a detailed evaluation of the impact of digital filters when applied to the Neutrinos Angra Experiment. The signals coming out from its front-end electronics are digitized and then sent to an FPGA where further processing might be carried out. In this context, this work proposes a set of peak amplitude estimators optimized to have minimum variance. Constrained optimization technique has been considered in order to build up estimators less sensitive to signal pedestal and phase variations. Those estimators are carefully characterized for the Neutrinos Angra system, where peak amplitude is considered to be proportional to the energy left by crossing particles. The implemented study is based on single photoelectron signals as produced at the end of the experiment readout chain, after their digitization. The applied methodology and the achieved results are presented in the following.","PeriodicalId":416167,"journal":{"name":"2017 2nd International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124064937","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 : 2017-08-01DOI: 10.1109/INSCIT.2017.8103518
R. Ballestrin, R. Bender, V. Brusamarello, I. Müller
In this work, a real-time method for characterization and analysis of vibration that can be applied in the transport of sensitive loads was proposed, developed and tested. For that, sensors nodes from a wireless sensor network were employed, performing data acquisition and calculating the power spectral density of vibrations. Transmitting only the result of the two most significant points of the PSD to a control node, there was a reduction of 93.4 % of the amount of data transmitted, allowing to increase data acquisition time without battery recharging. Another way to reduce power consumption was to use activity interrupts on the accelerometer to wake up the processor, keeping it in a low power state most of the time. To validate the proposed system, several experiments were performed comparing data with a commercial system, where the average percentage error obtained for PSD amplitude was 41 % for the highest energy frequency and 45 % for the second analyzed frequency. These were high values, but they do not invalidate the proposed system, since the average absolute error was smaller than the resolution in the identification of the frequencies where these peaks occurred. Some changes can be made with the possibility of improving the proposed system, such as performing a system calibration instead of using the values reported by the manufacturer and physically detaching the accelerometer from the sensor node board.
{"title":"Low cost wireless sensor network for vibration detection","authors":"R. Ballestrin, R. Bender, V. Brusamarello, I. Müller","doi":"10.1109/INSCIT.2017.8103518","DOIUrl":"https://doi.org/10.1109/INSCIT.2017.8103518","url":null,"abstract":"In this work, a real-time method for characterization and analysis of vibration that can be applied in the transport of sensitive loads was proposed, developed and tested. For that, sensors nodes from a wireless sensor network were employed, performing data acquisition and calculating the power spectral density of vibrations. Transmitting only the result of the two most significant points of the PSD to a control node, there was a reduction of 93.4 % of the amount of data transmitted, allowing to increase data acquisition time without battery recharging. Another way to reduce power consumption was to use activity interrupts on the accelerometer to wake up the processor, keeping it in a low power state most of the time. To validate the proposed system, several experiments were performed comparing data with a commercial system, where the average percentage error obtained for PSD amplitude was 41 % for the highest energy frequency and 45 % for the second analyzed frequency. These were high values, but they do not invalidate the proposed system, since the average absolute error was smaller than the resolution in the identification of the frequencies where these peaks occurred. Some changes can be made with the possibility of improving the proposed system, such as performing a system calibration instead of using the values reported by the manufacturer and physically detaching the accelerometer from the sensor node board.","PeriodicalId":416167,"journal":{"name":"2017 2nd International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115694068","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 : 2017-08-01DOI: 10.1109/INSCIT.2017.8103504
B. Arruda, R. Freire, L. F. Torres, V. L. Reis, E. Gurjão
Analog to Information Converters (AIC) acquires a discrete representation of a signal from the analog domain in Compressed Sensing. One of the crucial point in the AIC design is the configuration of the measurement matrix. Depending of its characteristics, this matrix can degrade the AIC performance. In this paper we analyze the influence of the primitive polynomial choice to configure a Linear Feedback Shift Register, that generates the measurement matrix values, in the performance of a configurable AIC. It is shown that, depending of the chosen primitive polynomial with a certain degree, the performance of the AIC can be completely degraded.
{"title":"Influence of measurement matrix characteristics in a configurable analog-to-information converter performance","authors":"B. Arruda, R. Freire, L. F. Torres, V. L. Reis, E. Gurjão","doi":"10.1109/INSCIT.2017.8103504","DOIUrl":"https://doi.org/10.1109/INSCIT.2017.8103504","url":null,"abstract":"Analog to Information Converters (AIC) acquires a discrete representation of a signal from the analog domain in Compressed Sensing. One of the crucial point in the AIC design is the configuration of the measurement matrix. Depending of its characteristics, this matrix can degrade the AIC performance. In this paper we analyze the influence of the primitive polynomial choice to configure a Linear Feedback Shift Register, that generates the measurement matrix values, in the performance of a configurable AIC. It is shown that, depending of the chosen primitive polynomial with a certain degree, the performance of the AIC can be completely degraded.","PeriodicalId":416167,"journal":{"name":"2017 2nd International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114770864","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 : 2017-08-01DOI: 10.1109/INSCIT.2017.8103508
P. Cordeiro, Leonardo Ramalho, Vitória Souza, Adalbery R. Castro, A. Klautau
The generation of multitone signals for use in built-in self-test (BIST) mixed circuits is challenging due to requirements such as resource usage and testing time. Generating offline the complete waveform and storing it for posterior playback is not an option in many applications. This paper describes a multitone signal generation design methodology that allows to choose proper parameters for the BIST circuit that will create the multitone signal on-the-fly. Besides, the work contributes with a new method for generation of multitone signals that is based on successively addition of single-tones signals and then compares with other two approaches using FPGA-based implementations. The results validate the design methodology and show that the proposed serial architecture significantly outperforms the others architectures in the context of on-the-fly signal generation.
{"title":"Design and implementation of low-cost multitone signal generation systems","authors":"P. Cordeiro, Leonardo Ramalho, Vitória Souza, Adalbery R. Castro, A. Klautau","doi":"10.1109/INSCIT.2017.8103508","DOIUrl":"https://doi.org/10.1109/INSCIT.2017.8103508","url":null,"abstract":"The generation of multitone signals for use in built-in self-test (BIST) mixed circuits is challenging due to requirements such as resource usage and testing time. Generating offline the complete waveform and storing it for posterior playback is not an option in many applications. This paper describes a multitone signal generation design methodology that allows to choose proper parameters for the BIST circuit that will create the multitone signal on-the-fly. Besides, the work contributes with a new method for generation of multitone signals that is based on successively addition of single-tones signals and then compares with other two approaches using FPGA-based implementations. The results validate the design methodology and show that the proposed serial architecture significantly outperforms the others architectures in the context of on-the-fly signal generation.","PeriodicalId":416167,"journal":{"name":"2017 2nd International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130675222","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 : 2017-08-01DOI: 10.1109/INSCIT.2017.8103522
Josue Pareja-Contreras, Manuel Sotomayor-Polar, Efrain Zenteno-Bolaños
Determining the position of a target is the central issue in several engineering problems, from computer vision to sonar or radar systems. Echo-localization systems use the reflected sound waves to extract information from a specific target taking advantages of the sound or ultrasound frequency range. In contrast to traditional echo-localization systems, which use single-tone excitation, this paper excite the enviorment using multitone signals. The utilization of multitone signals gives better time resolution in the ambiguity function for detection in a noisy environment. This paper shows an eigth receiver beamforming echo-localization system based on a 32 bit micro controller that is responsible for analog acquisition and multitone signal excitation.
{"title":"Beamforming echo-localization system using multitone excitation signals","authors":"Josue Pareja-Contreras, Manuel Sotomayor-Polar, Efrain Zenteno-Bolaños","doi":"10.1109/INSCIT.2017.8103522","DOIUrl":"https://doi.org/10.1109/INSCIT.2017.8103522","url":null,"abstract":"Determining the position of a target is the central issue in several engineering problems, from computer vision to sonar or radar systems. Echo-localization systems use the reflected sound waves to extract information from a specific target taking advantages of the sound or ultrasound frequency range. In contrast to traditional echo-localization systems, which use single-tone excitation, this paper excite the enviorment using multitone signals. The utilization of multitone signals gives better time resolution in the ambiguity function for detection in a noisy environment. This paper shows an eigth receiver beamforming echo-localization system based on a 32 bit micro controller that is responsible for analog acquisition and multitone signal excitation.","PeriodicalId":416167,"journal":{"name":"2017 2nd International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":" 64","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120829983","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 : 2017-08-01DOI: 10.1109/INSCIT.2017.8103533
R. F. Assis, S. Catunda, D. Belfort, I. Muller
This work presents an analysis performance for a Wheatstone-Bridge Constant Temperature Anemometer architecture (WB-CTA) using a NTC sensor and taking into account its energy consumption, sensitivity and settling time. The best design parameters are investigated considering the trade-off between these performance requirements. The study is conducted using dynamic behavior and circuit-level models of the thermo-resistive sensor and Wheatstone bridge. Simulations results are presented and discussed.
{"title":"Energy performance of NTC-based constant temperature anemometers","authors":"R. F. Assis, S. Catunda, D. Belfort, I. Muller","doi":"10.1109/INSCIT.2017.8103533","DOIUrl":"https://doi.org/10.1109/INSCIT.2017.8103533","url":null,"abstract":"This work presents an analysis performance for a Wheatstone-Bridge Constant Temperature Anemometer architecture (WB-CTA) using a NTC sensor and taking into account its energy consumption, sensitivity and settling time. The best design parameters are investigated considering the trade-off between these performance requirements. The study is conducted using dynamic behavior and circuit-level models of the thermo-resistive sensor and Wheatstone bridge. Simulations results are presented and discussed.","PeriodicalId":416167,"journal":{"name":"2017 2nd International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124961582","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 : 2017-08-01DOI: 10.1109/INSCIT.2017.8103511
J. Longo, J. R. Galvão, J. C. Cardozo da Silva, C. Martelli, R. Morales, M. Jose da Silva
Impedance spectroscopy is often applied to characterize solids and fluids since each substance presents its own and sometimes unique impedance spectra. In industrial applications, impedance spectroscopy has the potential to monitor many processes such as those occurring in chemical reactors or liquid transportation in pipelines. In this paper, we introduce a sensor being able to perform measurements of impedance spectra (from few Hz to few MHz) allied to precise temperature measurements based on optical fiber Bragg grating sensors which was applied for monitoring ice formation, as exemplary process. The new sensor is described, calibrated and tested. The system was evaluated by measurements with known substances. Ice formation process was monitored and some findings are presented and discussed.
{"title":"Dual sensor for simultaneous measurement of electrical impedance and temperature during ice formation process","authors":"J. Longo, J. R. Galvão, J. C. Cardozo da Silva, C. Martelli, R. Morales, M. Jose da Silva","doi":"10.1109/INSCIT.2017.8103511","DOIUrl":"https://doi.org/10.1109/INSCIT.2017.8103511","url":null,"abstract":"Impedance spectroscopy is often applied to characterize solids and fluids since each substance presents its own and sometimes unique impedance spectra. In industrial applications, impedance spectroscopy has the potential to monitor many processes such as those occurring in chemical reactors or liquid transportation in pipelines. In this paper, we introduce a sensor being able to perform measurements of impedance spectra (from few Hz to few MHz) allied to precise temperature measurements based on optical fiber Bragg grating sensors which was applied for monitoring ice formation, as exemplary process. The new sensor is described, calibrated and tested. The system was evaluated by measurements with known substances. Ice formation process was monitored and some findings are presented and discussed.","PeriodicalId":416167,"journal":{"name":"2017 2nd International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"37 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132467277","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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