A Kind of Rainfall Sensor Design without Mechanical Structure

DOI

10.2991/emcs-16.2016.395How to use a DOI?

Keywords

Cylindrical capacitance; Internal and external electrode; Linear transformation; Linearity; Temperature compensation.

Abstract

A kind of cylindrical capacitive rainfall sensor has been designed based on the things of Internet, and the temperature characteristic has been studied. Sensors including measuring cylinder, internal and external electrode and capacitance measurement circuit, the measuring cylinder liquid level changes in the formation of the linear capacitance change are converted into a voltage value; the digital measurement of rainfall information was achieved by the AD conversion. Through studies on characteristics of capacitive rainfall sensor output, the main factors that affect the measuring accuracy have been analyzed, input and output function are given, through the software algorithm for the linearity and sensitivity of compensation. The measured results show that the coefficient of nonlinear error of sensors is less than 4%, which has reached the design requirements.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Baopeng Lai
AU  - Zhouhu Deng
AU  - Xuewen Wang
AU  - Junfeng Yan
PY  - 2016/01
DA  - 2016/01
TI  - A Kind of Rainfall Sensor Design without Mechanical Structure
BT  - Proceedings of the 2016 International Conference on Education, Management, Computer and Society
PB  - Atlantis Press
SP  - 1581
EP  - 1585
SN  - 2352-538X
UR  - https://doi.org/10.2991/emcs-16.2016.395
DO  - 10.2991/emcs-16.2016.395
ID  - Lai2016/01
ER  -