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}
Pub Date : 2021-10-29DOI: 10.1109/ICEMI52946.2021.9679600
Qiao Zou, Rui Zhao, Jie Wu, Yahai Wang, Ziqi Jiang, Jinbang Wang
This paper designed a dielectric property test system of ultra wideband millimeter wave (UWB) materials by using quasi optical resonator method. By changing some structures, the dielectric property test of low loss materials in 12∼170GHz frequency band can be realized This paper breaks through the point frequency test method of low loss materials, and make it possible for broadband approximate frequency sweep test by using multi-point continuous test. Then test the common dielectric material quartz and automotive radar electronic materials at point frequency of 77GH. The test system has the characteristics of wide test frequency band, high precision and frequency sweep test.
{"title":"Broadband Millimeter Wave Dielectric Properties Measurement of Low Loss Materials","authors":"Qiao Zou, Rui Zhao, Jie Wu, Yahai Wang, Ziqi Jiang, Jinbang Wang","doi":"10.1109/ICEMI52946.2021.9679600","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679600","url":null,"abstract":"This paper designed a dielectric property test system of ultra wideband millimeter wave (UWB) materials by using quasi optical resonator method. By changing some structures, the dielectric property test of low loss materials in 12∼170GHz frequency band can be realized This paper breaks through the point frequency test method of low loss materials, and make it possible for broadband approximate frequency sweep test by using multi-point continuous test. Then test the common dielectric material quartz and automotive radar electronic materials at point frequency of 77GH. The test system has the characteristics of wide test frequency band, high precision and frequency sweep test.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"11 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":"117167687","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/ICEMI52946.2021.9679625
Xuwei Zhang, Zhilong Ye, Xunjiang Zheng, Shuodong Sun, Huiping Zhang
As a kind of high-precision attitude measurement instrument, star tracker will be widely used with the development of all-time technology. In order to expand the application scenario of star tracker, an autonomous navigation algorithm using all-time star tracker, time information, and accelerometer is proposed in this paper. Star tracker can measure the geometric relationship between carrier and inertial frame. Combined with accurate time and the measurement results of the accelerometer, the position and attitude of the carrier can be obtained through coordinate transformation. The error model of the navigation system is analyzed theoretically. The experimental results show that the accuracy of attitude measurement is about 10 ″, and the positioning accuracy is less than 10m while that of strapdown inertial navigation system is about dozens of meters.
{"title":"Autonomous Navigation Algorithm Using All-time Star Tracker, Accelerometer and Time","authors":"Xuwei Zhang, Zhilong Ye, Xunjiang Zheng, Shuodong Sun, Huiping Zhang","doi":"10.1109/ICEMI52946.2021.9679625","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679625","url":null,"abstract":"As a kind of high-precision attitude measurement instrument, star tracker will be widely used with the development of all-time technology. In order to expand the application scenario of star tracker, an autonomous navigation algorithm using all-time star tracker, time information, and accelerometer is proposed in this paper. Star tracker can measure the geometric relationship between carrier and inertial frame. Combined with accurate time and the measurement results of the accelerometer, the position and attitude of the carrier can be obtained through coordinate transformation. The error model of the navigation system is analyzed theoretically. The experimental results show that the accuracy of attitude measurement is about 10 ″, and the positioning accuracy is less than 10m while that of strapdown inertial navigation system is about dozens of meters.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"18 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":"114759146","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/ICEMI52946.2021.9679583
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/ICEMI52946.2021.9679510
Yazhen Tong, Shangming Sang, Ming Yan, Xian Zhang, Xingxi Wen
High-value resistance generally refers to the DC resistor with a resistance value of more than 1M or 10M which is widely used in electrometer, microammeter, insulation tester and other instruments, among which its stability is the key factor to determine the performance of instruments. Therefore, it is necessary to measure the temperature and voltage characteristics of high value resistance. The traditional bridge method can only measure high value resistance at low voltage. The paper demonstrates a measurement method for high value resistance, which is realized by a set of measurement device composed of multi-functional standard source and electrometer. It can meet both low voltage and high voltage conditions. This method is compared with the bridge method to measure the same high value resistance. It is concluded that the measurement method proposed in this paper is closer to the actual situation of high value resistance. At the same time, the paper analyzed effects of insulating materials, external electromagnetic interference, bending or vibration of the measurement cable, pollutants in the test environment on high resistance measurement, and puts forward some preventive measures to improve the accuracy of measurement It is suitable for the measurement of high-value resistance in general laboratories, and has practical application value.
{"title":"Measurement and application of high-value resistance","authors":"Yazhen Tong, Shangming Sang, Ming Yan, Xian Zhang, Xingxi Wen","doi":"10.1109/ICEMI52946.2021.9679510","DOIUrl":"https://doi.org/10.1109/ICEMI52946.2021.9679510","url":null,"abstract":"High-value resistance generally refers to the DC resistor with a resistance value of more than 1M or 10M which is widely used in electrometer, microammeter, insulation tester and other instruments, among which its stability is the key factor to determine the performance of instruments. Therefore, it is necessary to measure the temperature and voltage characteristics of high value resistance. The traditional bridge method can only measure high value resistance at low voltage. The paper demonstrates a measurement method for high value resistance, which is realized by a set of measurement device composed of multi-functional standard source and electrometer. It can meet both low voltage and high voltage conditions. This method is compared with the bridge method to measure the same high value resistance. It is concluded that the measurement method proposed in this paper is closer to the actual situation of high value resistance. At the same time, the paper analyzed effects of insulating materials, external electromagnetic interference, bending or vibration of the measurement cable, pollutants in the test environment on high resistance measurement, and puts forward some preventive measures to improve the accuracy of measurement It is suitable for the measurement of high-value resistance in general laboratories, and has practical application value.","PeriodicalId":289132,"journal":{"name":"2021 IEEE 15th International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"17 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":"114364203","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：