Error-detecting system of water-meter based on laser sensor with coaxial optical path

KONG Ming; LI Yi-fan

doi:10.13873/j.1000-97872012.07.005

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Error-detecting system of water-meter based on laser sensor with coaxial optical path

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- Error-detecting system of water-meter based on laser sensor with coaxial optical path
- Vol. 31, Issue 7, Pages: 98-101(2012)
- 作者机构：
  
  中国计量学院计量测试工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872012.07.005
  CLC： TH814.2
- Published：2012
- 稿件说明：
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[1]孔明,李轶凡.基于同轴回归激光传感器的水表误差检测系统[J].传感器与微系统,2012,31(07):98-101.

KONG Ming, LI Yi-fan. Error-detecting system of water-meter based on laser sensor with coaxial optical path[J]. 2012, 31(7): 98-101.
[1]孔明,李轶凡.基于同轴回归激光传感器的水表误差检测系统[J].传感器与微系统,2012,31(07):98-101. DOI： 10.13873/j.1000-97872012.07.005.

KONG Ming, LI Yi-fan. Error-detecting system of water-meter based on laser sensor with coaxial optical path[J]. 2012, 31(7): 98-101. DOI： 10.13873/j.1000-97872012.07.005.

摘要

设计一种针对水表始动元件转速测量的激光传感器检测系统。在传感器光学结构中加入半透半反镜使光路同轴回归

从而对目标准确瞄准定位。处理系统由FPGA和DSP组成进行激光回波信号数字化处理和阈值选取

减小虚预警概率。实验证明:检测系统在校准之后具有较高的检测效率和准确度

能够实现水表实时误差检测。

Abstract

In view of the water-meter’s tumor-initiating component with revolution

a kind of measurement system with laser sensor is designed.Half transparent and the mirror is used in the optical configuration to make coaxial optical path

and realize accurate aiming and positioning.Processing system is designed with FPGA and DSP that the laser echo signal’s digitallize processing and selection of the threshold value can be carried out to reduce the probability of false alert.The experimental results show that the measurement system has high detection efficiency and accuracy after calibration

which can realize real-time measurement of water-meter’s error.

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references

基于标准表法的流量标准装置设计与实现 [J]. 李锦冬. 工业计量 . 2007(04)

利用硅雪崩二极管检测激光脉冲信号 [J]. 郭冠军,李树楷. 中国激光 . 2002(06)

自动化水表检定系统 [J]. 陈宇星,郝庆平,王浔峰,王学仁,周胜勇,吴巨兴. 哈尔滨科学技术大学学报 . 1995(06)

激光原理技术及应用[M]. 哈尔滨工业大学出版社 , 李相银, 2004

水表及其检定[M]. 中国计量出版社 , 张泰丰编著, 1990

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