Study on detection technology for weak signal based on microcantilever piezoresistive bridge sensor

ZHOU Zhen1; WEN Feng1; TANG Guo-xian1

doi:10.13873/j.1000-97872012.01.015

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Study on detection technology for weak signal based on microcantilever piezoresistive bridge sensor

更新时间：2025-09-11

- Study on detection technology for weak signal based on microcantilever piezoresistive bridge sensor
- Vol. 31, Issue 1, Pages: 26-28+31(2012)
- 作者机构：
  
  1. 中北大学电子测试技术国家重点实验室
  2. 中北大学仪器科学与动态测试教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872012.01.015
  CLC： TP212;TN911.23
- Published：2012
- 稿件说明：
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[1]周振,文丰,唐国先.微悬臂梁压阻桥式传感器的微弱信号检测技术研究[J].传感器与微系统,2012,31(01):26-28+31.

ZHOU Zhen1, WEN Feng1, TANG Guo-xian1. Study on detection technology for weak signal based on microcantilever piezoresistive bridge sensor[J]. 2012, 31(1): 26-28+31.
[1]周振,文丰,唐国先.微悬臂梁压阻桥式传感器的微弱信号检测技术研究[J].传感器与微系统,2012,31(01):26-28+31. DOI： 10.13873/j.1000-97872012.01.015.

ZHOU Zhen1, WEN Feng1, TANG Guo-xian1. Study on detection technology for weak signal based on microcantilever piezoresistive bridge sensor[J]. 2012, 31(1): 26-28+31. DOI： 10.13873/j.1000-97872012.01.015.

摘要

针对微悬臂梁压阻桥式传感器的输出信号非常微弱的特点

设计了基于该类传感器的微弱信号检测电路

采用锁相放大技术来提取淹没在强噪声背景下的微弱信号

通过理论和实验证明:该设计方法很好地提取了反映变化量性质的有用信号

同时也很好地提高了系统的信噪比

满足了实际情况的需要。

Abstract

Aiming at the characteristic of the weak output signal of microcantilever piezoresistive bridge sensor

a weak signal detecting circuit based on this sensor is designed

the lock-in amplifier technology is used to extract the weak signal in the background of the strong noise.Through theory and experiment prove the method can extract well the useful signals.It can improve the signal-to-noise of the system

and meet the demand to actual situation.

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Keywords

references

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电感式扭矩传感器在电动助力转向系统中的应用 [J]. 刘强,于涌川,綦慧. 工业仪表与自动化装置 . 2009(05)

基于半导体压阻传感器的脉搏信号采集系统 [J]. 苏日娜,宋蜇存. 东北林业大学学报 . 2009(06)

一种适用于PLC的锁定放大器设计 [J]. 耿方方,芦杉. 电力系统通信 . 2009(01)

红外传感器的信号提取和数据采集的设计 [J]. 薛晨阳,谭秋林,马游春,秦海涛,翟成瑞,张文栋. 仪表技术与传感器 . 2007(02)

锁定放大器在微弱光信号检测中的应用 [J]. 邹燕,冯丽爽,张春熹,刘军. 电测与仪表 . 2005(11)

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