2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)最新文献_第2页

Design and test of a high precision digital CO monitor 高精度数字式一氧化碳监测仪的设计与测试

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) Pub Date : 2019-11-01 DOI: 10.1109/ICEMI46757.2019.9101510

Wang Lihao, wang guangming

{"title":"Design and test of a high precision digital CO monitor","authors":"Wang Lihao, wang guangming","doi":"10.1109/ICEMI46757.2019.9101510","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101510","url":null,"abstract":"CO is a kind of colorless and odorless toxic gas, which is a potential threat around people. It is of great significance to do a good job in monitoring CO leakage. We have designed and tested a high precision digital CO monitor based on STM32 single chip microcomputer and embedded system. The sensor module of this monitor consists of TGS5342 CO sensor made by FIGARO and BME280 temperature, humidity and pressure sensor made by BOSCH. The TGS5342 CO sensor has been calibrated at the factory, eliminating the process of calibrating as most monitors used to executed. The monitor is equipped with an OLED display screen, which can display real-time data of CO gas concentration and environmental temperature, humidity and pressure. This monitor makes full use of the rich interface resources of STM32 single chip microcomputer and communicates via CAN bus. As a result, the monitor can not only work independently, but also flexibly organize network online monitoring. Compared with most products in the market, the monitor has the advantages of high precision, low power consumption, long life, small size and strong anti-interference ability, which can be widely used in industrial and civil fields.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129533751","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

Design and evaluation of an FFT-based space-time image velocimetry (STIV) for time-averaged velocity measurement 基于fft的时均速度测量时空图像测速仪的设计与评价

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) Pub Date : 2019-11-01 DOI: 10.1109/ICEMI46757.2019.9101763

Zhang Zhen, Li Huabao, Zhou Yang, Huang Jian

{"title":"Design and evaluation of an FFT-based space-time image velocimetry (STIV) for time-averaged velocity measurement","authors":"Zhang Zhen, Li Huabao, Zhou Yang, Huang Jian","doi":"10.1109/ICEMI46757.2019.9101763","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101763","url":null,"abstract":"Space-Time Image Velocimetry (STIV) is a time-averaged velocity estimation method, which has been used for nonintrusive flow measurements from micro scale to large scale over the past decade. It takes a testing line as the Interrogation Area (IA), and detects the texture orientation of a generated Space-Time Image to determine the 1D velocity. Since STIV is superior to the Large-Scale Particle Image Velocimetry (LSPIV) in spatial resolution and time complexity, it has great potential in real-time monitoring of river flow. However, its practicality is still limited by the deficiencies of performance evaluation and sensitivity analysis due to its complexity and uncertainty. To simplify the detection of texture orientation in spatial domain, an FFT-STIV method was proposed based on Fast Fourier Transform, which detected the orientation of magnitude spectra in frequency domain. Then, a theoretical evaluation was provided, including measuring accuracy, measuring range and computational complexity. Finally, the sensitivities of image size, sampling rate, edge threshold, calibration accuracy, and tracing condition were analyzed based on a Rolling Painting Model (RPM). Results showed that the random errors of FFT-STIV could be controlled within ± 5%, where the systematic error was about ± 1%.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123887852","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

Improving new wavelet threshold by artificial fish swarm and its application for denoising 人工鱼群改进新小波阈值及其去噪应用

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) Pub Date : 2019-11-01 DOI: 10.1109/ICEMI46757.2019.9101596

Duan Minxia, Liu Xin, Dong Zengshou, Pang Jun

{"title":"Improving new wavelet threshold by artificial fish swarm and its application for denoising","authors":"Duan Minxia, Liu Xin, Dong Zengshou, Pang Jun","doi":"10.1109/ICEMI46757.2019.9101596","DOIUrl":"https://doi.org/10.1109/ICEMI46757.2019.9101596","url":null,"abstract":"Vibration signal is the main measurement signal of mechanical component fault diagnosis, and the presence of noise affects the feature extraction of the signal and the final fault diagnosis, so the test signal in practice needs to be denoised. The use of wavelet transform does not filter out the noise in the signal very well. This is because the hard threshold function is not continuous and some useful information is filtered out. There is a deviation in the soft threshold function and the noise in the signal cannot be completely filtered out. And the traditional threshold is fixed. In order to solve the problem of threshold function and threshold, this paper proposes a new threshold function, and uses artificial fish swarm algorithm to get the optimal threshold. Finally, the superiority and practicability of the method are verified by the unsteady test signal and the bearing dataset of Case Western Reserve University. From the final noise reduction result, the method can achieve better performance in noise reduction than other existing methods. The signal-to-noise ratio obtained by this method is 13%∼16% higher than other methods. The root mean square error is 10%∼41% lower than other methods.","PeriodicalId":419168,"journal":{"name":"2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123601281","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

Optimization design of electrostatic sensor spatial sensitivity in the oil system 油系统静电传感器空间灵敏度的优化设计

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) Pub Date : 2019-11-01 DOI: 10.1109/ICEMI46757.2019.9101604

C. Zhixiong, Jin Zelai, Y. Jun

引用次数: 0

Localization error of magnetic dipole by measuring remote magnetic field and field-gradient tensor 利用远端磁场和场梯度张量测量磁偶极子的定位误差

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) Pub Date : 2019-11-01 DOI: 10.1109/ICEMI46757.2019.9101515

Wang San-sheng, Shi Guoqiang, Zhang Mingji

引用次数: 0

Design of the measurement system for the ship’s physical fields 船舶物理场测量系统的设计

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) Pub Date : 2019-11-01 DOI: 10.1109/ICEMI46757.2019.9101870

Xiao Dawei, Liang Ting, Ji Qing

引用次数: 0

Three-dimensional particle localization method based on single light field camera 基于单光场相机的三维粒子定位方法

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) Pub Date : 2019-11-01 DOI: 10.1109/ICEMI46757.2019.9101797

K. Ming, Dong Ping, Zhao Jun, Guo Tiantai

引用次数: 0

Design of automatic calibration in digital oscilloscope 数字示波器的自动校准设计

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) Pub Date : 2019-11-01 DOI: 10.1109/ICEMI46757.2019.9101611

Wen Weifeng, Zhao Yijiu, Yu Zhonghao, He Hui, Zhang Shanshan

引用次数: 0

Shock wave overpressure testing system based on double external cavity fabry-perot interferometer 基于双外腔法布里-珀罗干涉仪的冲击波超压测试系统

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) Pub Date : 2019-11-01 DOI: 10.1109/ICEMI46757.2019.9101882

Z. Hongyu, Liu Qi

引用次数: 1

Design and application of magnetoelectric composite heterogeneous field multi-function sensor 磁电复合异质场多功能传感器的设计与应用

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) Pub Date : 2019-11-01 DOI: 10.1109/ICEMI46757.2019.9101724

Guo Xiaoting, Song Yunpeng, Song Huadong, Xu Chunfeng, Zhu Haibo, W. Yunan

引用次数: 2