Pub Date : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679506
D. Tan, G. Zhou
In order to ensure the safe and stable operation of the pressurized water stack, the core power of the reactor needs to be controlled. Traditional PID control is difficult to meet the modern control requirements, and the sliding mode control method is applied to the reactor core power control to achieve the purpose of automatic control. The state space model is established through the reactor core physical model, and the traditional sliding mode control algorithm and the model prediction sliding mode control algorithm are introduced to control the core power. The parameters of the PID controller were normalized using the particle group algorithm. By simulating the control effect of the three controllers by MATLAB/Simulink software, the results show that the model predicts the sliding mode control method without overshoot and shaking, has the best comprehensive performance, can quickly and accurately control the reactor core power and track the load change.
{"title":"Sliding Mode Control of Reactor Power Based on Model Prediction","authors":"D. Tan, G. Zhou","doi":"10.1109/ICEMI52946.2021.9679506","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679506","url":null,"abstract":"In order to ensure the safe and stable operation of the pressurized water stack, the core power of the reactor needs to be controlled. Traditional PID control is difficult to meet the modern control requirements, and the sliding mode control method is applied to the reactor core power control to achieve the purpose of automatic control. The state space model is established through the reactor core physical model, and the traditional sliding mode control algorithm and the model prediction sliding mode control algorithm are introduced to control the core power. The parameters of the PID controller were normalized using the particle group algorithm. By simulating the control effect of the three controllers by MATLAB/Simulink software, the results show that the model predicts the sliding mode control method without overshoot and shaking, has the best comprehensive performance, can quickly and accurately control the reactor core power and track the load change.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117303674","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}
The use of large storage tanks to store oil and products is the most used oil storage method at home and abroad, while large storage tanks are also the main measurement apparatus for trade settlement of petrochemical products. In order to solve the problem of capacity measurement and safety inspection for the whole life cycle of storage tanks, this paper proposes a method of capacity measurement and deformation monitoring for the whole life cycle based on 3D laser scanning technology, which breaks through the previous problem of low data collection and difficulty in truly reflecting the actual storage tanks. Tests show that the use of real-world replication technology can accurately measure the whole-life capacity of storage tanks and tank deformation, improving the efficiency of inspection and ensuring the safety of storage tank facilities.
{"title":"Research on the Application of Three-Dimensional Laser Scanner Method for Whole Life Cycle Capacity Measurement and Safety Monitoring of Storage Tanks","authors":"Xianlei Chen, Ze’nan Wu, Haolei Shi, Huadong Hao, Junxue Chen, Zhenqian Shen","doi":"10.1109/ICEMI52946.2021.9679566","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679566","url":null,"abstract":"The use of large storage tanks to store oil and products is the most used oil storage method at home and abroad, while large storage tanks are also the main measurement apparatus for trade settlement of petrochemical products. In order to solve the problem of capacity measurement and safety inspection for the whole life cycle of storage tanks, this paper proposes a method of capacity measurement and deformation monitoring for the whole life cycle based on 3D laser scanning technology, which breaks through the previous problem of low data collection and difficulty in truly reflecting the actual storage tanks. Tests show that the use of real-world replication technology can accurately measure the whole-life capacity of storage tanks and tank deformation, improving the efficiency of inspection and ensuring the safety of storage tank facilities.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115158571","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679565
Tao Li, Dingding Zhao, Xianglong Ma, Guoqing Chen, Shu Jiang
In this paper, a standard device is designed for torque loading calibration and testing of torque sensors in water environments. The calibrated torque sensor adopts fiber Bragg grating full bridge optical path to realize the automatic compensation of temperature and bending moment. It is suitable for the measurement of torque parameters in water environment. In this paper, the measurement accuracy and underwater performance of torque standard device are tested by loading experiment in water environment. Experiments show that the maximum nonlinear error, repeatability and underwater working stability of the underwater torque sensor are good, which indicates that the torque sensor not only has good measurement accuracy, but also can work well in the underwater and other liquid environment. The research work in this paper provides an important technical means for torque measurement in liquid environment such as water.
{"title":"Research on Torque Calibration and Measurement Technology in Water","authors":"Tao Li, Dingding Zhao, Xianglong Ma, Guoqing Chen, Shu Jiang","doi":"10.1109/ICEMI52946.2021.9679565","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679565","url":null,"abstract":"In this paper, a standard device is designed for torque loading calibration and testing of torque sensors in water environments. The calibrated torque sensor adopts fiber Bragg grating full bridge optical path to realize the automatic compensation of temperature and bending moment. It is suitable for the measurement of torque parameters in water environment. In this paper, the measurement accuracy and underwater performance of torque standard device are tested by loading experiment in water environment. Experiments show that the maximum nonlinear error, repeatability and underwater working stability of the underwater torque sensor are good, which indicates that the torque sensor not only has good measurement accuracy, but also can work well in the underwater and other liquid environment. The research work in this paper provides an important technical means for torque measurement in liquid environment such as water.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122752961","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679589
Zheng Jiang, Siming Guo, T. Yu, X. Qie, Jin-jie Wu, Wanchang Lai
The energy calibration of LaBr3(Ce) detector is carried out by using the experimental methods of standard radioactive source, K fluorescence X-rays source and crystal diffraction monochromatic X-rays source, and the energy calibration curve is given. The calibration results using K fluorescence X-rays source and crystal diffraction monochromatic X-rays source are close to the calibration results of standard radioactive source, which verifies the rationality and reliability of the two experimental methods for the detector energy linear calibration. Using the fitting formula obtained by K fluorescence X-rays source and crystal diffraction monochromatic X-rays source, the relative error between the energy fitting value and the real value of Pb-210, Am-241, Cd-109 and Co-57 radioactive sources is less than 3.5%. For the detection of the energy range of (30–120) keV, the LaBr3(Ce) detector can basically determine the energy of the measured ray.
{"title":"Study on Energy calibration of LaBr3(Ce) Scintillation Detector","authors":"Zheng Jiang, Siming Guo, T. Yu, X. Qie, Jin-jie Wu, Wanchang Lai","doi":"10.1109/ICEMI52946.2021.9679589","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679589","url":null,"abstract":"The energy calibration of LaBr3(Ce) detector is carried out by using the experimental methods of standard radioactive source, K fluorescence X-rays source and crystal diffraction monochromatic X-rays source, and the energy calibration curve is given. The calibration results using K fluorescence X-rays source and crystal diffraction monochromatic X-rays source are close to the calibration results of standard radioactive source, which verifies the rationality and reliability of the two experimental methods for the detector energy linear calibration. Using the fitting formula obtained by K fluorescence X-rays source and crystal diffraction monochromatic X-rays source, the relative error between the energy fitting value and the real value of Pb-210, Am-241, Cd-109 and Co-57 radioactive sources is less than 3.5%. For the detection of the energy range of (30–120) keV, the LaBr3(Ce) detector can basically determine the energy of the measured ray.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"46 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125829807","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679623
Dexuan Kong, Zaiming Fu, Hanglin Liu, Nan Ren
Fast edge pulses play a critical role in response testing and are widely used, and step recovery diode (SRD) based designs are a dominant form of their generation. However, the conventional method based on SRD and constant voltage source has the drawback of fixed amplitude. In this paper, a novel design of a fast edge compression circuit based on one SRD and two constant current sources is proposed. The fast switching characteristics of the Schottky diode are used to transmit the step characteristics of the SRD to generate a fast edge signal. One constant current source controls the amplitude and the other constant-current source is used to optimize the waveform quality. The experimental results show that the rise time of the pulse edge is about 140ps and the amplitude can be continuously controlled between 50mV and 3.0V.
{"title":"Methodology for Fast Edge Compression Based on SRD","authors":"Dexuan Kong, Zaiming Fu, Hanglin Liu, Nan Ren","doi":"10.1109/ICEMI52946.2021.9679623","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679623","url":null,"abstract":"Fast edge pulses play a critical role in response testing and are widely used, and step recovery diode (SRD) based designs are a dominant form of their generation. However, the conventional method based on SRD and constant voltage source has the drawback of fixed amplitude. In this paper, a novel design of a fast edge compression circuit based on one SRD and two constant current sources is proposed. The fast switching characteristics of the Schottky diode are used to transmit the step characteristics of the SRD to generate a fast edge signal. One constant current source controls the amplitude and the other constant-current source is used to optimize the waveform quality. The experimental results show that the rise time of the pulse edge is about 140ps and the amplitude can be continuously controlled between 50mV and 3.0V.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129992850","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679493
Zhicheng Wen, Shuo Yang, J. Cao, Hao Li, Zhigang Wang, Guangkun Luo
As the application of automatic test systems become more and more extensive, the requirements of test functions for complex tested equipment on the spot are getting higher and higher. It is difficult for ordinary buses to meet the needs of automatic test systems. Advanced bus technology is urgently needed in new types of testing tasks and speed. A new bus standard in automatic testing system has been developed: The Advanced TCA Extensions for Instrumentation and Test (AXIe) bus standard, which is established on the Advanced TCA (ATCA) standard. Both the PCI Express (PCIe) interface and the LAN interface can be supported for data transmission, which makes LXI or PXI testing systems can be compatible with the AXIe system. Based on the background, this thesis studies the AXIe standard bus of testing architecture and instrument module, and establishes a dual-channel high-speed signal generation module that carried on an AXIe instrument module structure.
{"title":"DAC-based 6.4GSPS High Speed and Dual Channel Signal Generation for AXIe Instrument","authors":"Zhicheng Wen, Shuo Yang, J. Cao, Hao Li, Zhigang Wang, Guangkun Luo","doi":"10.1109/ICEMI52946.2021.9679493","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679493","url":null,"abstract":"As the application of automatic test systems become more and more extensive, the requirements of test functions for complex tested equipment on the spot are getting higher and higher. It is difficult for ordinary buses to meet the needs of automatic test systems. Advanced bus technology is urgently needed in new types of testing tasks and speed. A new bus standard in automatic testing system has been developed: The Advanced TCA Extensions for Instrumentation and Test (AXIe) bus standard, which is established on the Advanced TCA (ATCA) standard. Both the PCI Express (PCIe) interface and the LAN interface can be supported for data transmission, which makes LXI or PXI testing systems can be compatible with the AXIe system. Based on the background, this thesis studies the AXIe standard bus of testing architecture and instrument module, and establishes a dual-channel high-speed signal generation module that carried on an AXIe instrument module structure.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130162412","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679516
W. Fan, Yu Cheng
Carbon fiber reinforced polymer (CFRP) is widely used because of its high specific strength and stiffness characteristics. However, the impact resistance of CFRP is inevitably subjected to impact during work. Electrical impedance tomography (EIT) has great potential in structural health monitoring (SHM) due to its non-destructive, non-intrusive and low cost. In the inverse problem of EIT, numerical algorithms are used to handle large data sets. However, traditional algorithms are computationally expensive and can be complex to implement. This paper aims to solve the inverse problem of EIT by deep learning. To achieve this goal, GRU-CNN model is adopted to the inverse problem of EIT. The RMSE (root mean squared error) and CC (correlation coefficient) are set as image quality criteria. Both simulation and experimental results prove the performance of this method.
{"title":"GRU-CNN Neural Network for Electrical Impedance Tomography","authors":"W. Fan, Yu Cheng","doi":"10.1109/ICEMI52946.2021.9679516","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679516","url":null,"abstract":"Carbon fiber reinforced polymer (CFRP) is widely used because of its high specific strength and stiffness characteristics. However, the impact resistance of CFRP is inevitably subjected to impact during work. Electrical impedance tomography (EIT) has great potential in structural health monitoring (SHM) due to its non-destructive, non-intrusive and low cost. In the inverse problem of EIT, numerical algorithms are used to handle large data sets. However, traditional algorithms are computationally expensive and can be complex to implement. This paper aims to solve the inverse problem of EIT by deep learning. To achieve this goal, GRU-CNN model is adopted to the inverse problem of EIT. The RMSE (root mean squared error) and CC (correlation coefficient) are set as image quality criteria. Both simulation and experimental results prove the performance of this method.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"199 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125683321","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679583
ZhenHua Jin, Yuwei Hua, Shengjun Kan
Aiming at the problem of poor reliability and time certainty of microgrid offline simulation, combined with the characteristics of fast and time certainty of Field Programmable Gate Array (FPGA), the digital-analog hybrid real-time simulation platform of DC microgrid fault detection system based on FPGA was studied. The platform is composed of FPGA real-time digital simulation system, photovoltaic (PV) and energy storage control system, microgrid energy management system that can plan system operation modes and detect faults. The multi-step decomposition method is used to realize the reasonable distribution of computing power. In this platform, the hardware is composed of NI-PXIe-8840 real-time controller, PXIe-7868R FPGA, PXI-8512CAN and upper computer, and the software is included Simulink simulation software, Veristand experiment management software and Opal-RT toolkit, which can verify and study key technologies such as fault detection algorithm and energy management strategy of DC microgrid.
{"title":"Real-time Simulation Platform of DC Microgrid Fault Detection Based on FPGA","authors":"ZhenHua Jin, Yuwei Hua, Shengjun Kan","doi":"10.1109/ICEMI52946.2021.9679583","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679583","url":null,"abstract":"Aiming at the problem of poor reliability and time certainty of microgrid offline simulation, combined with the characteristics of fast and time certainty of Field Programmable Gate Array (FPGA), the digital-analog hybrid real-time simulation platform of DC microgrid fault detection system based on FPGA was studied. The platform is composed of FPGA real-time digital simulation system, photovoltaic (PV) and energy storage control system, microgrid energy management system that can plan system operation modes and detect faults. The multi-step decomposition method is used to realize the reasonable distribution of computing power. In this platform, the hardware is composed of NI-PXIe-8840 real-time controller, PXIe-7868R FPGA, PXI-8512CAN and upper computer, and the software is included Simulink simulation software, Veristand experiment management software and Opal-RT toolkit, which can verify and study key technologies such as fault detection algorithm and energy management strategy of DC microgrid.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127783800","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 : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679575
Shuyi Liu, Zhuoyan Gao, Yan Jia, Yongqing Liu, Xiangkun Zhang
The stepped frequency signal is an important signal form to improve the range resolution of radar system, which effectively reduces the hardware requirements for ultra-wideband radar system. This article uses two signal generators, a spectrum analyzer and an oscilloscope to establish a stepped frequency ultra-wideband radar hardware-in-the-loop simulation system, and obtains super-resolution range signal through frequency domain wideband synthesis. Combining hardware-in-the-loop simulation with computer data processing, the experimental results show that the time resolution of the ultra-wideband signal synthesized by 35 28MHz sub-pulses is up to 1.06ns. The larger the bandwidth formed by the stepped frequency, the higher the range resolution, which verifies the effect of the stepped frequency on improving the range resolution.
{"title":"Research on Hardware-in-the-loop Simulation of Stepped Frequency Ultra-wideband Radar","authors":"Shuyi Liu, Zhuoyan Gao, Yan Jia, Yongqing Liu, Xiangkun Zhang","doi":"10.1109/ICEMI52946.2021.9679575","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679575","url":null,"abstract":"The stepped frequency signal is an important signal form to improve the range resolution of radar system, which effectively reduces the hardware requirements for ultra-wideband radar system. This article uses two signal generators, a spectrum analyzer and an oscilloscope to establish a stepped frequency ultra-wideband radar hardware-in-the-loop simulation system, and obtains super-resolution range signal through frequency domain wideband synthesis. Combining hardware-in-the-loop simulation with computer data processing, the experimental results show that the time resolution of the ultra-wideband signal synthesized by 35 28MHz sub-pulses is up to 1.06ns. The larger the bandwidth formed by the stepped frequency, the higher the range resolution, which verifies the effect of the stepped frequency on improving the range resolution.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132892177","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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