基于大阻尼比的双输出振动传感器

PDF(1605 KB)

振动与冲击 ›› 2011, Vol. 30 ›› Issue (11) : 25-29.

论文

基于大阻尼比的双输出振动传感器

杨立志; 杨学山; 匙庆磊; 王南

作者信息 +

Vibration sensor with double outputs based on big damping ratio

Yang Li-zhi; Yang Xue-shan; Chi Qing-lei; Wang Nan

Author information +

文章历史 +

摘要

介绍了基于大阻尼比的双输出振动传感器的结构原理和技术性能。将电容传感和大阻尼比动圈传感技术相结合，在一个振动传感器上实现了可同时测量加速度和速度两种振动参量。利用大阻尼比动圈换能技术拓宽了传感器的频率特性和扩大了测量量程，且两种传感输出具有相同的幅频特性和相位特性。给出了系统运动方程，导出了振动传感器测量振动加速度和速度两种参量的频率特性和灵敏度。用此技术研制的双输出传感器可用于土木水利工程的低频和超低频振动测量，为工程振动测量提供了一种新仪器。也可用于强地震观测，弥补了单一强震加速度观测的不足，超低频强震速度测量可获取更加丰富地震信息。

Abstract

Introduced the principle and technical performance of vibration sensor with double outputs, that based on big damping ratio. By using the electric capacity sensing and the big damping ratio moving coil sensing technology, acceleration and velocity could be measured simultaneously with an vibration sensor. The bandwidth and range of the vibration sensor are expanded by using big damping ratio moving coil technology. The paper give the system equation, get the frequency characteristic and sensitivity of acceleration and velocity. As a new instrument for engineering vibration measurement, the sensor could be used in low and ultra low frequency vibration measurement for Civil and Hydraulic Engineering and strong gound motion.

导出引用

杨立志;杨学山;匙庆磊;王南. 基于大阻尼比的双输出振动传感器[J]. 振动与冲击, 2011, 30(11): 25-29

Yang Li-zhi;Yang Xue-shan;Chi Qing-lei;Wang Nan. Vibration sensor with double outputs based on big damping ratio[J]. Journal of Vibration and Shock, 2011, 30(11): 25-29