Non-contact moisture sensor for substance

XIAN Wan-ting1; ZHANG Xian1; LIU Qi-zhong2

doi:10.13873/j.1000-97872012.10.040

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Non-contact moisture sensor for substance

更新时间：2025-09-11

- Non-contact moisture sensor for substance
- Vol. 31, Issue 10, Pages: 88-90(2012)
- 作者机构：
  
  1. 中国电子科技集团公司第四十九研究所
  2. 中国人民解放军第二炮兵部队驻黑龙江军代室
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872012.10.040
  CLC： TP212.11
- Published：2012
- 稿件说明：
移动端阅览
[1]咸婉婷,张宪,刘其中.非接触式物料水分传感器[J].传感器与微系统,2012,31(10):88-90.

XIAN Wan-ting1, ZHANG Xian1, LIU Qi-zhong2. Non-contact moisture sensor for substance[J]. 2012, 31(10): 88-90.
[1]咸婉婷,张宪,刘其中.非接触式物料水分传感器[J].传感器与微系统,2012,31(10):88-90. DOI： 10.13873/j.1000-97872012.10.040.

XIAN Wan-ting1, ZHANG Xian1, LIU Qi-zhong2. Non-contact moisture sensor for substance[J]. 2012, 31(10): 88-90. DOI： 10.13873/j.1000-97872012.10.040.

摘要

为实现固体物料水分含量的在线监测

设计了基于频域反射原理的非接触式物料水分传感器。该传感器基于固体状物料含水量与介电常数的关系

利用电容式探头对介电常数的测量能力

通过水分变化关系实验建立了容积含水量与介电常数的数学模型

并完成了传感器的结构设计和电路设计。实验结果表明:该传感器实现了对固体颗粒状物料水分的准确测量

满足物料水分测量的实际需求。

Abstract

In order to realize on-line monitoring on moisture content of solid substance

a non-contact substance moisture sensor using frequency domain reflect principle is designed.This sensor is designed based on the relation of solid substance moisture content and dielectric constant

using the testing ability of capacitive probe on dielectric constant

the math model between volumetric moisture content and dielectric constant is built up by moisture content variation experiment

the design of sensor structure and circuit is accomplished.The results of experiment indicate that the sensor realizes accurate measurement of solid substance moisture content

which meet requirment of substance moisture monitoring.

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Keywords

references

电容式固态物含水率传感器的模型 [J]. 樊尚春,梁虹. 仪器仪表学报 . 2004(S1)

FDR系统在土壤水分连续动态监测中的应用 [J]. 郭卫华,李波,张新时,王仁卿. 干旱区研究 . 2003(04)

插杆式智能水分传感器设计 [J]. 滕召胜. 传感技术学报 . 1999(04)

水分检测的原理与装置[M]. 中国计量出版社 , (苏)克里切夫斯基（Кричевский,Е.С.）著, 1986

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