电子器件2018，Vol.41Issue(1)：100-103,4.DOI:10.3969/j.issn.1005-9490.2018.01.019
基于对数衰减法求解冲击波超压测试系统参数的方法研究
Study on Methodology for Parameter Determination of Shock Wave Overpressure Test System Based on Logarithmic Decrement Method
秦泗超 1杜红棉 2王燕 1葛竹2
作者信息
- 1. 中北大学电子测试技术国家重点实验室,太原030051
- 2. 中北大学仪器科学与动态测试教育部重点实验室,太原030051
- 折叠
摘要
Abstract
In order to characterize the piezoelectric sensor accurately,based on the situation that the first peak of the piezoelectric sensor's response to a step signal in the time domain is not the highest one.Two methods were presented to estimate the damping ratio ζ and these two ways were compared each other. The one method is time-domain analyzing method,and the other is logarithmic decrement method.We analyzed the time response of a pressure sensor that was obtained through experiment and compared the experiment data to the expected theory sensor response. The results show that the logarithmic decrement method showed better agreement with experimental results and this indicates it is a better option for the characterization of such a kind of sensor.关键词
动态特性/阻尼比/对数衰减法/时域分析法/压电传感器/冲击波/激波管Key words
dynamic characteristics/damping ratio/logarithmic decrement method/time-domain analyzing method/piezoelectric transducer/shock wave/shock tube分类
信息技术与安全科学引用本文复制引用
秦泗超,杜红棉,王燕,葛竹..基于对数衰减法求解冲击波超压测试系统参数的方法研究[J].电子器件,2018,41(1):100-103,4.
