传感技术学报2024，Vol.37Issue(4)：597-602,6.DOI:10.3969/j.issn.1004-1699.2024.04.006
基于FDC2214的非接触式液位检测系统的设计
Design of Non-Contact Liquid Level Detection System Based on FDC2214
徐振宇 1吴建锋 1刘伟2
作者信息
- 1. 浙江树人学院信息科技学院,浙江 杭州 310015
- 2. 杭州电子科技大学新型电子器件与应用研究所,浙江 杭州 310018
- 折叠
摘要
Abstract
A non-contact liquid level measurement system based on FDC2214 capacitive sensor is proposed to solve the problems of corros-ivenes,being easily gasified,being easily solidified,and other special problems of liquid level measurements.The hardware system com-posed of an STM32F103 chip and an FDC2214 capacitance sensor is designed.Through data analysis of capacitance change and tempera-ture change curve,the corresponding temperature compensation system is built.In addition,the system uses a Kalman filtering algorithm to filter the measured data,which effectively improves the measurement accuracy and stability of the system.The test results show that the liquid level measuring system measures 10 groups of different liquid levels,and the sensitivity of the liquid level gauge is 190.5 pF/m.Besides,the liquid level measurement system can complete the liquid level measurement without changing the structure of the liquid con-tainer.Finally,the Kalman filtering algorithm can effectively improve the measurement accuracy and stability of the liquid level gauge.关键词
液位检测/FDC2214/卡尔曼滤波/电容传感器/非接触式Key words
liquid level detection/FDC2214/Kalman filter/capacitance sensor/non contact分类
信息技术与安全科学引用本文复制引用
徐振宇,吴建锋,刘伟..基于FDC2214的非接触式液位检测系统的设计[J].传感技术学报,2024,37(4):597-602,6.
