煤矿安全2024，Vol.55Issue(2)：235-243,9.DOI:10.13347/j.cnki.mkaq.20231229
基于小波变换的锚杆锚索测力仪设计
Design of bolt and cable dynamometer based on wavelet transform
摘要
Abstract
In view of the electromagnetic interference existing in the well,it can greatly interfere with the voltage signal of the opera-tional amplifier terminal collected by the dynamometer,and then affect the accuracy of the pressure value measured by the sensor.The design uses the domestic HC32L176 micro controller unit as the main control chip.Develop a dynamometer which uses the chip.Collect the voltage signal through the oscilloscope.Select the appropriate wavelet basis function,the number of decomposition lay-ers,threshold rule and threshold function to decomposesignals containing noise.Filter out the high-frequency components of differ-ent layers,and then reconstruct the signal to obtain the denoising signal.Through Matlab simulation and practical test,the results show that the wavelet transform can achieve a good denoising of the collected voltage signal,and improve the reliability and stabil-ity of the bolt and cable dynamometer.关键词
锚杆锚索测力仪/矿压在线监测/电磁干扰/小波变换/信号去噪/信号重构/信号采集Key words
bolt and cable dynamometer/on-line monitoring of mine pressure/electromagnetic interference/wavelet transform/sig-nal denoising/signal reconstruction/acquisition of signal分类
矿业与冶金引用本文复制引用
吴士涛,邹坤,杨婕,张晶晶,赵玉斌,汤建泉,王晓明..基于小波变换的锚杆锚索测力仪设计[J].煤矿安全,2024,55(2):235-243,9.基金项目
泰安市科技创新发展资助项目(2020GX008) （2020GX008）
