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2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)最新文献

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Non-invasive Microwave Sensor for Ethanol Content in Gasoline Applications 无创微波传感器在汽油中乙醇含量的应用
2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) Pub Date : 2019-08-01 DOI: 10.1109/INSCIT.2019.8868877
C. C. P. e Silva, M. M. Bezerra, S. Morais, C. C. R. Albuquerque, J. I. L. Araujo, A. Serres, J. J. Silva, M. Grilo, J. S. da Rocha Neto
{"title":"Non-invasive Microwave Sensor for Ethanol Content in Gasoline Applications","authors":"C. C. P. e Silva, M. M. Bezerra, S. Morais, C. C. R. Albuquerque, J. I. L. Araujo, A. Serres, J. J. Silva, M. Grilo, J. S. da Rocha Neto","doi":"10.1109/INSCIT.2019.8868877","DOIUrl":"https://doi.org/10.1109/INSCIT.2019.8868877","url":null,"abstract":"The adulteration of gasoline has become a common practice in the process of its transportation, distribution and commercialization. Using non-compliant gasoline has many negative consequences for society including financial and health problems like gasoline overconsuming, decreasing engine performance, spontaneous combustion and increasing of pollutants emission. Therefore, several methods of complete gasoline analysis are available in the market, but many of these methods are only feasible in laboratories, requiring specialized people to gauge the quality of the product. Furthermore, non-invasive methods are not yet widely used to perform gasoline quality measurement, which is a further aggravation of gasoline handling throughout the entire testing and analysis process. Hence, considering that standard gasoline is a dielectric liquid mixture with about 30 different hydrocarbons, the present paper proposes a noninvasive method applied to gasoline quality measurement. This method is based on the variation of electrical parameters of the mixture, utilizing as the sensor a microwave resonator, once that varying dielectric parameters alter the power transmission in specific structures.","PeriodicalId":246490,"journal":{"name":"2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122268506","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}
引用次数: 1
Modeling, Characterization and Analysis of a Microfabricated Piezoelectric Cantilever for Vibration Sensing and Energy Harvesting 用于振动传感和能量收集的微压电悬臂梁的建模、表征和分析
2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) Pub Date : 2019-08-01 DOI: 10.1109/INSCIT.2019.8868523
Felipe Augusto Costa de Oliveira, D. W. de Lima Monteiro, L. P. Salles
{"title":"Modeling, Characterization and Analysis of a Microfabricated Piezoelectric Cantilever for Vibration Sensing and Energy Harvesting","authors":"Felipe Augusto Costa de Oliveira, D. W. de Lima Monteiro, L. P. Salles","doi":"10.1109/INSCIT.2019.8868523","DOIUrl":"https://doi.org/10.1109/INSCIT.2019.8868523","url":null,"abstract":"A piezoelectric micro-cantilever, with potential applications for vibration sensing and energy harvesting, was designed for a standard industry process. Its expected sensitivity for vibration intensity and power generation capability were simulated using a simplified one-dimensional model. The device was fabricated and a sample was prepared for testing, where experiments have been carried out to measure the resonance frequency, the damping coefficient and to derive the frequency response and the voltage vs vibration intensity plots. The experimental results were compared to the analytical model and semi-empirical corrections were made to improve the predicted behavior. Based on the obtained results, an assessment of the device capabilities and potential application is given.","PeriodicalId":246490,"journal":{"name":"2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127652900","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}
引用次数: 2
Normalized Spectral Responsivity Measurement of Photodiode by Direct Method Using a Supercontinuum Laser Source 利用超连续激光源直接法测量光电二极管归一化光谱响应度
2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) Pub Date : 2019-08-01 DOI: 10.1109/INSCIT.2019.8868527
F. S. Rocha, L. P. Salles, A. Jorio
{"title":"Normalized Spectral Responsivity Measurement of Photodiode by Direct Method Using a Supercontinuum Laser Source","authors":"F. S. Rocha, L. P. Salles, A. Jorio","doi":"10.1109/INSCIT.2019.8868527","DOIUrl":"https://doi.org/10.1109/INSCIT.2019.8868527","url":null,"abstract":"Light detectors such as photodiodes and phototransistors are fundamental elements that compose imaging sensors and cameras devices. The photocurrent generated by photodiodes depends on the energy of light that is absorbed by semiconductor material, describing an important characteristic of this kind device. We present an optic instrumentation for measurement of normalized spectral responsivity of light detectors. The optics is composed by a single-grating monochromator, converting lens, a slit and a beamsplitter. Supercontinuum lasers provides a high-stability beam with ultra-broadband white-light spectrum. High spectral purity is achieved with only monochromator and the measurements are performed in terms of spectral power measured through a calibrated spectrometer. Uncertainties are examined at carefully for a specific confidence level considering Type A and Type B evaluations.","PeriodicalId":246490,"journal":{"name":"2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125458673","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}
引用次数: 0
Hybrid Radiometric Location of Partial Discharge Sources 局部放电源的混合辐射测量定位
2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) Pub Date : 2019-08-01 DOI: 10.1109/INSCIT.2019.8868698
R. Duarte, J. Villanueva, J. D. S. de Souza Neto, E. Macedo, R. P. de Medeiros
{"title":"Hybrid Radiometric Location of Partial Discharge Sources","authors":"R. Duarte, J. Villanueva, J. D. S. de Souza Neto, E. Macedo, R. P. de Medeiros","doi":"10.1109/INSCIT.2019.8868698","DOIUrl":"https://doi.org/10.1109/INSCIT.2019.8868698","url":null,"abstract":"One way to diagnose the wear of electrical equipments is to identify the occurrence of partial discharges. From the detection of partial discharges, the maintenance of defective equipment can be programmed. Thus, the reliability of the system is increased and the chances of interruption decrease. Additionally, the information provided by partial discharge signals can be used to estimate the location of the source. In this work, we present a hybrid radiometric localization based on the energy and time of arrival of these signals. Using a two-dimensional ray tracing simulation model loaded with the map of a high voltage substation, this new technique was compared with two techniques based on the difference of the time-of-arrival of the signal at different receivers. Despite the reduced complexity, the hybrid technique has lower performance than those based on arrival times.","PeriodicalId":246490,"journal":{"name":"2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132996982","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}
引用次数: 2
Water pollution assessment by microcontroller-based lock-in amplifier 基于单片机的锁相放大器的水污染评价
2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) Pub Date : 2019-08-01 DOI: 10.1109/INSCIT.2019.8868489
Raiff Sales da Fonseca, M. Bonfim, R. Gonçalves, Rafael da Silva Ferraz, Eduardo Parente Ribeiro
{"title":"Water pollution assessment by microcontroller-based lock-in amplifier","authors":"Raiff Sales da Fonseca, M. Bonfim, R. Gonçalves, Rafael da Silva Ferraz, Eduardo Parente Ribeiro","doi":"10.1109/INSCIT.2019.8868489","DOIUrl":"https://doi.org/10.1109/INSCIT.2019.8868489","url":null,"abstract":"This paper presents a new approach to the classical design and implementation of a Lock-In Amplifier (LIA) applied to impedance measurement of interdigital capacitive sensors in order to evaluate water polution. It is based on a general-purpose microcontroller and an active band-pass filter. The design uses a wave generator (AD9833) as source for the reference signal and an Analog to Digital Converter (ADC) from the microcontroller to sample the device under test (DUT) signal. In the particular context of this study, the sensor responses are evaluated by conductance, impedance and capacitance measurements on water-chlorine and water-salt solutions.","PeriodicalId":246490,"journal":{"name":"2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114613841","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}
引用次数: 3
Study of the light energy harvesting capacity in indoor environments 室内环境下光能收集能力的研究
2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) Pub Date : 2019-08-01 DOI: 10.1109/INSCIT.2019.8868516
M. Costa, L. Manera, H. S. Moreira
{"title":"Study of the light energy harvesting capacity in indoor environments","authors":"M. Costa, L. Manera, H. S. Moreira","doi":"10.1109/INSCIT.2019.8868516","DOIUrl":"https://doi.org/10.1109/INSCIT.2019.8868516","url":null,"abstract":"Systems involving solar energy harvesting typically need to be designed under the horizon of the energetic environmental limitations that are inserted. The objective of this work is to investigate and raise the capacity of solar energy scavening in four selected indoor environments, aiming at the applicability of energy harvesting circuits in mobile electronics or wireless sensor network, for example. For this purpose, a photovoltaic wafer cell was characterized in a controlled environment. A circuit for I-v curve extraction was developed and estimations of maximum power transfer by area were raised. The characterization results showed 14.04 % for the wafer conversion efficiency at maximum power operation point (MPP) and a respective voltage of 73 % in relation to VOC. Regarding the environments testing, location with indirect sunlight, a few hundred µWatts were captured, while in artificial illumination some tens of µW. So, using the device proposed in this paper, it was possible to quantify the energy harvesting capacity of different environments in real time.","PeriodicalId":246490,"journal":{"name":"2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123400133","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}
引用次数: 5
Computer USB-Mouse Emulation Using EOG 使用EOG的计算机usb -鼠标仿真
2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) Pub Date : 2019-08-01 DOI: 10.1109/INSCIT.2019.8868754
S. E. de Lucena, Philip Conzelmann
{"title":"Computer USB-Mouse Emulation Using EOG","authors":"S. E. de Lucena, Philip Conzelmann","doi":"10.1109/INSCIT.2019.8868754","DOIUrl":"https://doi.org/10.1109/INSCIT.2019.8868754","url":null,"abstract":"In this work an analog frontend was developed which allows to evaluate the EOG (electrooculogram) signals in a microcontroller and convert them into position changes of a computer mouse. A drift compensation system overcomes the most common problem of EOG measurements, the baseline drift. Different approaches for how to operate the mouse have been tested, whereby the method of controlling the mouse by giving single commands with defined movements gave the most promising results.","PeriodicalId":246490,"journal":{"name":"2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114797884","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}
引用次数: 3
Tip-enhanced Raman Spectroscopy of Graphene 石墨烯的尖端增强拉曼光谱
2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) Pub Date : 2019-08-01 DOI: 10.1109/INSCIT.2019.8868627
Cassiano Rabelo, Hudson Miranda, T. Vasconcelos, L. G. Cançado, A. Jorio
{"title":"Tip-enhanced Raman Spectroscopy of Graphene","authors":"Cassiano Rabelo, Hudson Miranda, T. Vasconcelos, L. G. Cançado, A. Jorio","doi":"10.1109/INSCIT.2019.8868627","DOIUrl":"https://doi.org/10.1109/INSCIT.2019.8868627","url":null,"abstract":"This paper presents an optical spectroscopy system engineered to overcome the diffraction limit, describing its building blocks and its application in the characterization of graphene. Based on a technique know as Tip-enhanced Raman Spectroscopy (TERS), the system is capable of obtaining images and spectral information from nanostructures smaller then the minimal length imposed by the diffraction limit of light through the use of optical nanoantennas designed to convert local evanescent radiation to propagating radiation and vice-versa. The system is described with focus on the optical components, including tip-light focus alignment, and on software to handle the massive amount of data generated in hyperspectral imaging. The system is utilized to extract rich information from a graphene nanofiake, with comments on important aspects to generate such spectral analysis.","PeriodicalId":246490,"journal":{"name":"2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"322 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116781009","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}
引用次数: 5
Design and Optimization of Electromagnetic Transducer for Aeroelastic Energy Harvesting 气动弹性能量采集电磁换能器的设计与优化
2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) Pub Date : 2019-08-01 DOI: 10.1109/INSCIT.2019.8868369
Marcelo Jorge Filho, R. M. G. de Vasconcellos, André Alves Ferreira
{"title":"Design and Optimization of Electromagnetic Transducer for Aeroelastic Energy Harvesting","authors":"Marcelo Jorge Filho, R. M. G. de Vasconcellos, André Alves Ferreira","doi":"10.1109/INSCIT.2019.8868369","DOIUrl":"https://doi.org/10.1109/INSCIT.2019.8868369","url":null,"abstract":"The energy harvesting from oscillations of structures immersed in a moving fluid has received attention from the scientific community in recent years. Particularly, oscillations resulting from dynamically stable non-linear effects, induced or not, favor this harvesting. There are numerous applications for the energy harvesting of the oscillation of aeronautical structures, among them, wireless sensors powering and other electronic devices. In addition to energy utilization, another beneficial effect, as a result of the conversion of some of this energy, is the decrease in the amplitude of oscillation, resulting in less damage to the structure. The proposed energy harvest uses as a transducer an electromagnetic induction system that will be optimized in this work to later be coupled to the structure of a typical aeroelastic section, with one degree of freedom in torsion exposed to the fluid flow.","PeriodicalId":246490,"journal":{"name":"2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130228115","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}
引用次数: 1
Forceps Pressure Algometer Based on Load Cell 基于称重传感器的钳子压力计
2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT) Pub Date : 2019-08-01 DOI: 10.1109/INSCIT.2019.8868876
Graziella Bedenik, Gabriel Graça, E. Carvalho, J. D. de Santana, J. Carvalho, R. Freire
{"title":"Forceps Pressure Algometer Based on Load Cell","authors":"Graziella Bedenik, Gabriel Graça, E. Carvalho, J. D. de Santana, J. Carvalho, R. Freire","doi":"10.1109/INSCIT.2019.8868876","DOIUrl":"https://doi.org/10.1109/INSCIT.2019.8868876","url":null,"abstract":"Researchers studying the pain experience agree it is a complex phenomenon. In this field, it is necessary to describe, understand and measure the pain experience in order to advance in diagnosis and treatment of patients. Pain quantification can be performed through an instrument called algometer. One of the many parameters it measures is the Pressure Pain Threshold (PPT). This parameter is defined as the point at which a mechanical stimulus becomes painful. In this paper, we present a pressure algometer using calibrated forceps to animal models applications. It requires little training for handling and precise control of the force angle is not necessary. We employed a load cell as the system force transducer. Characterization experiments were performed. Results show us the algometer has satisfactory reproducibility, mensuration linearity, potential for temperature and noise insensitivity, and intraobserver repeatability.","PeriodicalId":246490,"journal":{"name":"2019 4th International Symposium on Instrumentation Systems, Circuits and Transducers (INSCIT)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124710348","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}
引用次数: 0
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