Dynamic characteristics of displacement measurement system based on connected pipe with U pipe model

LIU Guo-ping; LEI Xiao-hua; CHEN Wei-min; ZHANG Peng

doi:10.13873/j.1000-97872007.11.009

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Dynamic characteristics of displacement measurement system based on connected pipe with U pipe model

更新时间：2025-09-11

- Dynamic characteristics of displacement measurement system based on connected pipe with U pipe model
- Issue 11, Pages: 41-44(2007)
- 作者机构：
  
  1. 重庆大学光电技术及系统教育部重点实验室
  2. 重庆大学光电技术及系统教育部重点实验室,重庆,400030
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872007.11.009
  CLC： U446.2
- Published：2007
- 稿件说明：
移动端阅览
[1]刘国平,雷小华,陈伟民,章鹏.连通管位移测量系统U型管模型的动态特性研究[J].传感器与微系统,2007(11):41-44.

LIU Guo-ping, LEI Xiao-hua, CHEN Wei-min, et al. Dynamic characteristics of displacement measurement system based on connected pipe with U pipe model[J]. 2007, (11): 41-44.
[1]刘国平,雷小华,陈伟民,章鹏.连通管位移测量系统U型管模型的动态特性研究[J].传感器与微系统,2007(11):41-44. DOI： 10.13873/j.1000-97872007.11.009.

LIU Guo-ping, LEI Xiao-hua, CHEN Wei-min, et al. Dynamic characteristics of displacement measurement system based on connected pipe with U pipe model[J]. 2007, (11): 41-44. DOI： 10.13873/j.1000-97872007.11.009.

摘要

连通管位移测量系统中

液体作为测量的特殊敏感元件

其动态特性研究的滞后一直制约着系统进行动态测量的应用。以等直径U型连通管为模型

推导了液体系统的传递函数

得到影响液体动态特性的上升时间、峰值时间、最大超调量和调整时间等4个时域性能指标

通过分析知连通管的直径、液体总长以及液体的运动粘滞系数是影响液体动态特性的主要因素

在此基础上

完成了动态特性实验。结果表明:实验值与理论推导值基本吻合

使用连通管式测量系统进行低频动态测量是可行的。

Abstract

Liquid is the special sensing unit in the connected pipe measurement system.The lag of its dynamic characteristic research restricts the system to be used in the dynamic measurement.A U pipe with equal diameter is used as the model

system transfer function is deduced and four important performance indexes in time domain are gotten

such as rise time

peak time

maximum overshoot and governing time

etc.They affect dynamic performances of the liquid.From analysis the diameter of pipe

total length and movement viscosity coefficient of liquid are key elements which influence dynamic characteristics of liquid.Dynamic characteristics experiment is finished on this foundation.The results show that experiment values are consistent with theoretical ones.It is feasible to use a connected pipe measurement system in low-frequency dynamic measurement.

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references

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桥梁结构状态参数监测技术研究现状 [J]. 杨建春,陈伟民. 传感器技术 . 2004(03)

国内大坝监测自动化的现状与发展 [J]. 方卫华. 水利水文自动化 . 2000(03)

超声波静力水准仪的研制 [D]. 杨学存. 西安科技大学 2005

调压室水力计算理论与方法[M]. 清华大学出版社 , 王树人主编, 1983

水力学[M]. 人民教育出版社 , 清华大学水力学教研组编, 1981

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