2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)最新文献

{"title":"A Compact Noise-Immune TDLAS Temperature Sensor using Intensity Modulation","authors":"Lijun Xu, Guangyu Hou, Yuanqing Li, Shuang Qiu, Zhenyuan Song, Z. Cao","doi":"10.1109/I2MTC43012.2020.9128366","DOIUrl":"https://doi.org/10.1109/I2MTC43012.2020.9128366","url":null,"abstract":"In this paper, a noise-immune method with light intensity modulation was proposed by using a Mach-Zehnder fiber interferometer. Meanwhile, the fiber interferometer was reused as an etalon to make the sensor configuration more compact. Compared with direct absorption spectroscopy (DAS), the optical path for measuring the absorption spectrum and the optical path for measuring wavenumber were combined. It combined the advantages of measuring the absolute absorbance profile from the DAS method with noise suppression ability of the amplitude modulation. Experiments showed that the new method is more robust than the DAS method in case of background light interference. It provided a new way to detect the actual temperature in a harsh environment, such as backgrounds interrupted by fluctuating thermal radiations.","PeriodicalId":227967,"journal":{"name":"2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133655535","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}

{"title":"Estimation of Instantaneous Frequency in the Presence of Interfering Trajectories","authors":"L. Angrisani, Alessandro Tocchi, Davide Ruggiero, R. S. L. Moriello, Giorgio de Alteriis, Francesco Capasso","doi":"10.1109/I2MTC43012.2020.9128597","DOIUrl":"https://doi.org/10.1109/I2MTC43012.2020.9128597","url":null,"abstract":"The paper presents a method for the estimation of instantaneous frequency (IF) of signals characterized by interfering IF trajectories. It would be a useful methodology for maintenance and troubleshooting of wireless networks sharing the same operating frequency interval or predictive maintenance of vibrating/rotating systems. Stemming from IF trajectories estimated through traditional or enhanced time-frequency representations, the method applies an agile digital signal processing approach in order to suitably merge different sections belonging to the same trajectory. Preliminary results show the efficacy of the method when signals characterized by multiple intersections in the time-frequency domain are experienced.","PeriodicalId":227967,"journal":{"name":"2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114309791","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}

{"title":"Analysis of Ratio and Phase Errors over Time for Low Power Voltage Transformers","authors":"A. Mingotti, L. Peretto, A. Nalli, M. Pau, F. Ponci","doi":"10.1109/I2MTC43012.2020.9128777","DOIUrl":"https://doi.org/10.1109/I2MTC43012.2020.9128777","url":null,"abstract":"Future smart grids will increasingly rely on automated functionalities for the efficient management of the electric grid and of its assets. The reliable processing of the measurement data collected from the field will play thus a critical role. In such a scenario, the detailed knowledge of the metrological characteristics of the used sensors and of their behavior under specific operating conditions can be of paramount importance to properly design and tune management and control algorithms. In this paper, the goal is to analyze the characteristics of the measurement errors over time for instrument transformers typically adopted as voltage and current sensors. Such analysis is relevant to understand the properties of the measurement errors over time, given, for example, the large use of applications based on Kalman-filter theory or other approaches based on the dynamic processing of measurements over time. The paper presents laboratory tests performed on different Low-Power Instrument Transformers and discusses the statistical properties of the associated measurement errors.","PeriodicalId":227967,"journal":{"name":"2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114739797","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}

{"title":"Design and Verification of Finite-element Simulation Modeling for Vibro-acoustic Effect","authors":"Dongdong Zheng, Yanbin Xu, F. Dong","doi":"10.1109/I2MTC43012.2020.9129497","DOIUrl":"https://doi.org/10.1109/I2MTC43012.2020.9129497","url":null,"abstract":"Ultrasound-stimulated vibro-acoustography (USVA), a speckle-free and high-resolution elastic imaging method, uses two focused ultrasound beams with slightly offset frequency to generate dynamic acoustic radiation force (ARF) which can drive the tissue to produce localized harmonic vibration. The low-frequency vibrated tissue radiates sound energy outward with its elastic properties. The complex energy conversion process can be also called vibro-acoustic effect (VAE), which is able to be divided into three different stages, generation of source sound field, low-frequency vibration caused by dynamic ARF and propagation of secondary sound field. However, there is currently no such complete finite-element modeling for the complex energy conversion process due to challenges of computational complexity caused by finite-element calculation and multi-physical field coupling. Based on the physical mechanism and theoretical derivation, a complete finite-element simulation modeling for VAE is designed in which the computational cost is able to be reduced effectively and acoustic-structure coupled interfaces are utilized to couple sound field and solid mechanical field together. To verify the feasibility of the proposed modeling for VAE, three stages of VAE are discussed respectively. For the availability of source sound field, the dynamic and steady state of high-frequency wave propagation as well as nonlinear interaction of two focused ultrasound beams in the focal area can be obtained and visualized by the proposed simulation modeling for VAE. Regarding to the verification of low-frequency vibration caused by dynamic ARF, the simulation result demonstrates that the frequency of vibration velocity at focus coincides with the offset frequency. Utilizing the propagation of secondary sound field in the proposed modeling for VAE, the relationship among pressure amplitude of secondary sound field at the observation point, offset frequency and vibration velocity is discussed to confirm that the relative elasticity of tissue in the focal area can be obtained. The proposed complete finite-element simulation modeling for VAE is expected to provide visual and thorough understanding and guidance of VAE for future research.","PeriodicalId":227967,"journal":{"name":"2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117326709","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}

{"title":"A Solar-Radiation-Powered Thermoelectric Energy Harvester based on Quasicrystal","authors":"Vinícius Silva Oliveira, M. Camboim, B. Lima, C. P. Souza, O. Baiocchi","doi":"10.1109/I2MTC43012.2020.9128936","DOIUrl":"https://doi.org/10.1109/I2MTC43012.2020.9128936","url":null,"abstract":"Energy harvesting is an important research area of the Internet of Things (IoT), mainly in the so-called Internet of Natural Things (IoNT), which is an IoT technique applied to things found in the nature like trees, rocks, and animals that need to be powered by environmentally available energy. Among several energy harvesting solutions, the thermoelectric-based energy harvester is a very promising one and it is generally based on semiconductor-based thermoelectric generators (TEGs) where the output electric voltage is proportional to the applied temperature gradient on them. However, the most important natural energy source is the solar radiation that, when incident in a surface, warms it and, as a result, the surface achieves a homogeneous temperature, turning the TEG useless since temperature gradient is zero. A possible solution for thermoelectric energy harvesting directly from solar radiation is to provide a way to selectively absorb solar radiation using different surfaces with adequate properties to obtain a temperature gradient. In this paper, a solar-radiation-powered thermoelectric energy harvester is proposed. The proposed harvester is based on the use of a new kind of material, called quasicrystals, to build selective solar absorbers, therefore allowing energy harvesting directly from solar radiation. Experimental results show that the proposed system is capable of effective generation of electrical energy.","PeriodicalId":227967,"journal":{"name":"2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115299314","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}

{"title":"Nonlinear System Identification for an Electromagnetic Groundwater Flowmeter","authors":"Ben Mitchell, Michael P. Hayes, B. Heffernan","doi":"10.1109/I2MTC43012.2020.9129522","DOIUrl":"https://doi.org/10.1109/I2MTC43012.2020.9129522","url":null,"abstract":"The signals measured by electromagnetic flowmeters are corrupted by 1/f noise from the electrodes and interference from changing electric and magnetic fields when driving the electromagnet. The effect of this interference can be mitigated using system identification using a generalized linear least squares approach and a suitable model. However, this approach fails for linear models when the level of interference is strong compared to the desired flow signal. This is due to non-linearities in the behaviour of the measurement electrodes. In this paper we show that the non-linear behaviour can be mitigated using non-linear system identification procedures. Specifically, a variant of the NARMAX algorithm was employed to determine a non-linear system model. Experimental results show that this approach produces an improved and more consistent estimation of the flow signal.","PeriodicalId":227967,"journal":{"name":"2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"274 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115299724","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}

{"title":"Feasibility Evaluation of Optoelectronic Strain Measurement for Flywheel Rotors","authors":"Matthias Rath, R. Preßmair, B. Schweighofer, G. Brasseur","doi":"10.1109/I2MTC43012.2020.9128797","DOIUrl":"https://doi.org/10.1109/I2MTC43012.2020.9128797","url":null,"abstract":"The rotor is a core element of a Flywheel Energy Storage System (FESS) and its condition has to be monitored continuously to assure safe operation. Modern flywheel rotors are usually made of carbon-fiber-reinforced polymer (CFRP) composites because of their high inherent specific energy density. Throughout the service life the stress state inside the rotor changes due to long-term effects of the material. Therefore, the strain profile is an interesting measure for the rotor’s health condition. The chosen measurement principle requires a surface finish of the rotor with a periodic pattern of contrasting areas. A preliminary evaluation of the feasibility of different optoelectronic measurement setups with focus on different rotor materials, surface finishes and the high rotational speed of the rotor was conducted. Adhesion properties and influences of different rotor surface finishes as well as the influence of the photodiode’s rise time are investigated.","PeriodicalId":227967,"journal":{"name":"2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124688008","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}

{"title":"Evaluation of Position RMS Error from Magnetic Field Gradient for Surgical EM Tracking Systems","authors":"M. Ragolia, F. Attivissimo, A. Nisio, A. Lanzolla","doi":"10.1109/I2MTC43012.2020.9128837","DOIUrl":"https://doi.org/10.1109/I2MTC43012.2020.9128837","url":null,"abstract":"Electromagnetic tracking systems (EMTSs) are widely used in surgical operations, supporting the surgeon for the localization of tools during intervention. In this paper we describe a novel EMTS prototype for surgical navigation, based on a magnetic field generator (FG) composed of five transmitting coils, to advance the state-of-the-art of current commercial systems.The root mean square error (or mean radial spherical error) of position estimation for the tracking system is characterized through propagation of the voltage measurement error of the magnetic sensor, for different orientations and positions, and taking into account magnetic field gradient. This method does not require a magnetic field model, resulting useful for fast and not expensive assessment of different EMTSs with different transmitting coils’ arrangement. In this paper a measurement volume of 400 mm x 500 mm x 400 mm has been considered.The results show good performance with a standard deviation of position lower than 1 mm in almost the entire measurement volume.","PeriodicalId":227967,"journal":{"name":"2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124951520","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}

{"title":"A New Dual Magnetic Sensor Probe for Lift-off Compensation in Magnetic Flux Leakage Detection","authors":"Yue Long, Songling Huang, Lisha Peng, Shen Wang, Wei Zhao","doi":"10.1109/I2MTC43012.2020.9129204","DOIUrl":"https://doi.org/10.1109/I2MTC43012.2020.9129204","url":null,"abstract":"For in-line inspection of ferromagnetic materials, magnetic flux leakage (MFL) detection is the most common nondestructive testing method. The measured signals of the MFL detection are affected by many factors, especially the lift-off of sensors. In addition, in practical inspection applications, due to mechanical vibration, the lift-off of sensors will continue to fluctuate throughout the detection process. To address the problem, this paper proposes a new type of probe with dual vertical distributed magnetic sensors for MFL detection. This paper also presents a solution for implementing the dual magnetic sensor probe on the circuit board. According to the proposed probe structure and the magnetic dipole model, the analytical solutions of the current sensor lift-off and the defect depth are given. The solutions are verified by the finite element simulation and physical experiments. Furthermore, the sensor lift-off compensation experiments are carried out under different lift-off values. The simulation and the experiments prove that the solution of the defect depth and the lift-off compensation of probes are in line with the engineering application.","PeriodicalId":227967,"journal":{"name":"2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121557487","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}

{"title":"A Health 4.0 Integrated System for Monitoring and Predicting Patient’s Health During Surgical Procedures","authors":"P. Arpaia, M. Cicatiello, E. D. Benedetto, C. Dodaro, Luigi Duraccio, G. Servillo, M. Vargas","doi":"10.1109/I2MTC43012.2020.9128840","DOIUrl":"https://doi.org/10.1109/I2MTC43012.2020.9128840","url":null,"abstract":"In this work, an innovative system architecture for enhancing patient’s health monitoring during surgical procedure is proposed. The proposed integrated system consists of a video see-through (VST) headset (worn by anesthetist or nurses or other member of the surgical team involved in the procedure), which shows in real-time a comprehensive set of information on the patient’s health status.In particular, the operator can visualize in real-time the patient’s vitals acquired from the operating room (OR) equipment and access the electronic medical records. The proposed system was designed in view of robotic surgery; therefore, an additional function is that the VST will display the real-time view of what the surgeon is looking at on his console. Finally, the system will also include a machine-learning algorithm which, starting from the medical records and from the monitored vitals, will predict possible aggravating conditions of the patient’s health and provide a timely alert.The present work focuses on creating the implementation framework of the whole system, and on real-time monitoring of the patient’s vitals.","PeriodicalId":227967,"journal":{"name":"2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122058157","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}