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2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)最新文献

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Signal analysis of vortex flow field in mist flow using transient pressure sensor array 瞬态压力传感器阵列雾流中旋涡流场的信号分析
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2019-05-01 DOI: 10.1109/I2MTC.2019.8827043
Hongjun Sun, Xiaoliang Li, Hongbing Ding, Jinxia Li
{"title":"Signal analysis of vortex flow field in mist flow using transient pressure sensor array","authors":"Hongjun Sun, Xiaoliang Li, Hongbing Ding, Jinxia Li","doi":"10.1109/I2MTC.2019.8827043","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827043","url":null,"abstract":"The vortex flowmeter can be used to measure the flowrate of wet gas mist flow. In order to analyze the characteristics of vortex flowmeter in wet gas mist flow, the transient pressure sensor array was utilized to acquire the signal of near-wall vortex flow field. The amplitude-frequency response characteristics of the probe–transducer systems were analyzed to ensure the transient pressure measurement accuracy. Then, experiments were carried out on the mist flow facility, and vortex field signals were obtained by the sensor array. The signal’s amplitudes on different pressure-sampling positions were compared and the signal qualities on different liquid mass loadings were analyzed by correlation measurement. What’s more, the convection velocity of vortex core was measured by the cross-correlation method. The results indicated that the signal quality deteriorates greatly with the increase of liquid mass loading, and the convection velocity of vortex core in mist flow is obviously lower than that of the single gas condition.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131869550","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: 4
Finger-vein image segmentation based on KFCM and active contour model 基于KFCM和活动轮廓模型的指静脉图像分割
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2019-05-01 DOI: 10.1109/I2MTC.2019.8826942
Jianfeng Zhang, Zhiying Lu, Min Li
{"title":"Finger-vein image segmentation based on KFCM and active contour model","authors":"Jianfeng Zhang, Zhiying Lu, Min Li","doi":"10.1109/I2MTC.2019.8826942","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8826942","url":null,"abstract":"Due to inferior contrast and intensity inhomogeneity existing in finger-vein images, current segmentation methods cannot distinguish the venous and non-venous areas effectively. To address this issue, we propose a robust segmentation approach which merges the kernel fuzzy C-means (KFCM) algorithm with an active contour model (ACM). Firstly, the KFCM algorithm is adopted to segment the venous area roughly, which is served as the initial evolution outline of ACMs. Secondly, we present a novel region-based ACM where an edge fitting item is brought in to achieve better segmentation performance. Finally, finger-vein image segmentation is achieved by minimizing the proposed region-based ACM which is served as an energy function, and the level set method is introduced to solve the minimization problem efficiently. The experimental results show that the proposed approach has significant performance in segmenting finger-vein images.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132214762","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
Moving Photovoltaic (PV) Installations: Impacts of the Solar Radiation Level on the Output Power 移动光伏装置:太阳辐射水平对输出功率的影响
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2019-05-01 DOI: 10.1109/I2MTC.2019.8827138
C. Schuss, T. Fabritius, B. Eichberger, T. Rahkonen
{"title":"Moving Photovoltaic (PV) Installations: Impacts of the Solar Radiation Level on the Output Power","authors":"C. Schuss, T. Fabritius, B. Eichberger, T. Rahkonen","doi":"10.1109/I2MTC.2019.8827138","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827138","url":null,"abstract":"This paper investigates the potential output power of moving photovoltaic (PV) installations. In particular, we focus on the impacts of the solar radiation level on the available output power of PV installations on top of moving objects. We discuss the situation for controlling the operating voltage of photovoltaics installed on top of battery-powered electric vehicles (BEVs) and hybrid electric vehicles (HEVs). We demonstrate that different longitudinal angles of PV cells due to curved roof surfaces and the fast slopes of the solar radiation level have a significant impact on the maximum power point tracking (MPPT) algorithm. We illustrate how the solar radiation level can reduce the efficiency of the MPPT algorithms.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114795907","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
An FPGA-based Time Sampling Charge Measurement Method for TOF-PET Detectors 基于fpga的TOF-PET探测器时间采样电荷测量方法
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2019-05-01 DOI: 10.1109/I2MTC.2019.8827035
Bo Wu, Yonggang Wang, Qiang Cao, J. Kuang, Mingchen Wang, Xiaoyu Zhou
{"title":"An FPGA-based Time Sampling Charge Measurement Method for TOF-PET Detectors","authors":"Bo Wu, Yonggang Wang, Qiang Cao, J. Kuang, Mingchen Wang, Xiaoyu Zhou","doi":"10.1109/I2MTC.2019.8827035","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827035","url":null,"abstract":"The front-end electronics for detectors of time- of-flight positron emission tomography (TOF-PET) is required to read out the time and energy of detected $gamma$-events simultaneously. To simplify the circuits for high integration, we propose an amplitude based time-sampling method with a novel algorithm to precisely extract the energy information from time measurement. Therefore, traditionally two independent measuring circuits can be merged without losing measurement precision for each item. A prototype with the method was implemented fully with a field programmable gate array (FPGA), and applied to a TOF-PET detector consisted of a silicon photomultiplier (SiPM) coupled with a LYSO crystal. The energy resolution and the coincidence time resolution of the detector were measured as 14.18% and 316 ps respectively, which are comparable with traditional separate measurements. The contribution of our new method to the energy resolution is measured as 5.9%, which is much small than the intrinsic energy resolution of detectors. The FPGA based prototype design demonstrates not only its effectiveness, but also its practicality. Instead of ASIC technology, using modern FPGA chips, the front-end electronics for TOF-PET scanners can be equally compact and power-efficient.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115919334","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: 6
Excitation Patterns in 3D Electrical Impedance Tomography for Breast Imaging 乳腺成像中三维电阻抗断层成像的激发模式
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2019-05-01 DOI: 10.1109/I2MTC.2019.8826844
Shijie Sun, Lijun Xu, Z. Cao, Jiangtao Sun, W. Tian, Duan Li
{"title":"Excitation Patterns in 3D Electrical Impedance Tomography for Breast Imaging","authors":"Shijie Sun, Lijun Xu, Z. Cao, Jiangtao Sun, W. Tian, Duan Li","doi":"10.1109/I2MTC.2019.8826844","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8826844","url":null,"abstract":"Electrical impedance tomography (EIT) has been used for breast cancer detection as a complementary technique to mammography and magnetic resonance imaging (MRI). Three-dimensional (3D) EIT is being investigated with the improvement of instrumentation and numerical modeling. In this paper, a hemisphere breast model and a three-layer electrode distribution for 3D EIT are used. The excitation patterns in 3D EIT based on one current source, including the traditional neighboring method and opposite method are discussed and then a s-shaped method is proposed. Numerical experiments are carried out to analyze the singularity of the Jacobian matrix, dynamic range of the measured voltage and image quality, which are obtained by using different excitation methods. The results show that the proposed s-shaped method can provide low dynamic range of the measured voltage and good visual shape reconstruction for breast imaging.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123118267","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
Distributed Passive Sensor for Moisture Sensing in Structures 用于结构湿度传感的分布式无源传感器
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2019-05-01 DOI: 10.1109/I2MTC.2019.8827067
M. Neumayer, T. Suppan, M. Flatscher, T. Bretterklieber
{"title":"Distributed Passive Sensor for Moisture Sensing in Structures","authors":"M. Neumayer, T. Suppan, M. Flatscher, T. Bretterklieber","doi":"10.1109/I2MTC.2019.8827067","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827067","url":null,"abstract":"Moisture in buildings is considered as a severe issue for the deterioration of the consistency of structural materials, as well as for the well-being of the inhabitants. The relevance of the topic increases with the trend of increased application of natural materials in construction, e.g. in timber based construction. The requirements for a moisture sensing system are in the need to cover a large area, simple installation (no cables) and a long lifetime. Hence classical moisture probes are not suitable for distributed moisture sensing. In this paper we present a distributed passive sensor approach for moisture sensing in structures. A sensor network is formed by means of coupled resonance circuits, where each individual sensor is used to detect moisture and to distribute the information of the other sensors. The individual sensor element is realized by means of wire traces only, enabling an inherently robust design suitable for harsh environments. We will present the design of the sensor elements and the network interactions by means of a sensor model and demonstrate the capability of the approach by means of measurements.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123208053","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
An Arbitrary Harmonics Generating Power Source for Power Quality Measurement Devices 一种用于电能质量测量装置的任意谐波电源
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2019-05-01 DOI: 10.1109/I2MTC.2019.8826895
Wenwen Zhou, Zhichuan Wei, Zhibing Li
{"title":"An Arbitrary Harmonics Generating Power Source for Power Quality Measurement Devices","authors":"Wenwen Zhou, Zhichuan Wei, Zhibing Li","doi":"10.1109/I2MTC.2019.8826895","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8826895","url":null,"abstract":"This paper presents an electrical power source with arbitrary harmonics generating for power quality measurement devices in calibration. Harmonics generating theory illustrate the design challenge should be generating groups of accurate sinusoidal signals with different amplitudes, frequencies and initial phases simultaneously. We discuss various approaches for digital sinusoid generating, and decide to use the CORDIC algorithm implemented on an FPGA. The hardware implementation including the block diagram and the system structure is given. It is demonstrated that the number of points per circle barely affect the accuracy when it is more than 2000. A fundamental with distortion on all harmonics up to the 50th order is generated. The experimental results show the amplitude accuracy and phase accuracy of all the channels achieve the design target. We also give and discuss the longtime drift of voltage and power accuracy.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123051813","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
A Method for Absolute Electrical Impedance Tomography without Measuring Reference Voltages 一种不测量参考电压的绝对电阻抗层析成像方法
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2019-05-01 DOI: 10.1109/I2MTC.2019.8826809
Zeying Wang, Shihong Yue, Xiaoyuan Liu, Benyuan Sun, Huaxiang Wang
{"title":"A Method for Absolute Electrical Impedance Tomography without Measuring Reference Voltages","authors":"Zeying Wang, Shihong Yue, Xiaoyuan Liu, Benyuan Sun, Huaxiang Wang","doi":"10.1109/I2MTC.2019.8826809","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8826809","url":null,"abstract":"Electrical impedance tomography (EIT) is a non-invasive imaging technology that reconstructs the interior conductivity distribution (variation) of the cross-section of an object through two different sets of measurement data. However, due to the unavailable reference measurements, it is usually hard to reconstruct the absolute distribution in practice. In this paper, it is verified that any measurement set of a uniform field can be expressed as the product of a parameter and a normalized reference frame. The effect of reference voltage bias on reconstruction is explored in two kinds of models, and pm 4% is set as the reference tolerable bias. It is found that the midrange of measured voltage sets is always within the tolerable bias as the conductivity distribution changing under constant background conductivity. In the proposed method, the reference voltages are estimated by the product of the midrange of real-time measurements and the normalized reference voltages that can be obtained in simulation. This method is tested and compared to the standard method in simulations and experiments. The result illustrates that the proposed method can reconstruct absolute conductivity distribution effectively, and the image qualities in some cases can even be slightly enhanced.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121734820","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
Localization of radio emitters by wideband compressive sampling 基于宽带压缩采样的无线电发射机定位
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2019-05-01 DOI: 10.1109/I2MTC.2019.8827064
E. Balestrieri, L. D. Vito, F. Picariello, IOAN TUDOSA
{"title":"Localization of radio emitters by wideband compressive sampling","authors":"E. Balestrieri, L. D. Vito, F. Picariello, IOAN TUDOSA","doi":"10.1109/I2MTC.2019.8827064","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827064","url":null,"abstract":"This paper proposes a method for radio frequency transmitters localization, that exploits Compressive Sampling (CS) to relax the requirements of the data rate from the sensor units to the control center. The method is composed by two steps: in the former one, the receivers acquire wideband signals in the observation band by Non-Uniform Sampling and send the acquired samples to the control center; in the latter, the control center reconstructs the spectra for each of the receivers and evaluates the position of the transmitter by multilateration. The mathematical model, describing the measurement procedure is presented and the obtained results from simulation tests are reported. Herein, the estimated error vector magnitude (EVM) values for localizing three RF transmitters, are discussed. Furthermore, all the simulations consider two geometrical configurations for the sensors placement, square and L.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122110601","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
Accurate and quickly responsive surface temperature measurement: a step to widespread non-invasive T-measurement in industry 准确和快速响应的表面温度测量:在工业中广泛的非侵入性t测量的一步
2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2019-05-01 DOI: 10.1109/I2MTC.2019.8827002
Jörg Gebhardt, W. Daake, Peter Ude, K. Schröder, G. Sosale
{"title":"Accurate and quickly responsive surface temperature measurement: a step to widespread non-invasive T-measurement in industry","authors":"Jörg Gebhardt, W. Daake, Peter Ude, K. Schröder, G. Sosale","doi":"10.1109/I2MTC.2019.8827002","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827002","url":null,"abstract":"Non-invasive temperature sensing has the potential to considerably enhance the safety and simplicity of temperature measurement in industrial process facilities. By accurately and reliably measuring the outer wall temperature of a piping conveying a liquid, the needs for a traditional invasive device can be eliminated in many common process circumstances. However, surface sensors are not widely used largely due to two factors: ambiguity of the process conditions that allow for surface measurements and inaccuracies that arise from improper device design and installation. This paper outlines the key process conditions where surface measurements would suffice. It also subsequently presents a framework for modeling a surface measurement sensor with insights on how to improve the measurement accuracy. Experiments with a device that utilizes the derived insights are presented which demonstrate temperature measurement performance equivalent to traditional invasive sensors.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121422602","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: 6
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