Liquid-level measurement system based on a remote grounded capacitive sensor

2007 ◽  
Vol 138 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Ferran Reverter ◽  
Xiujun Li ◽  
Gerard C.M. Meijer
Keyword(s):  
Measurement System ◽  
Capacitive Sensor ◽  
Liquid Level ◽  
Level Measurement ◽  
Liquid Level Measurement

The Design of Liquid Level Detection System for Oil Tank

2011 ◽  
Vol 130-134 ◽  
pp. 2443-2446
Author(s):  
Ai Ping Wu ◽  
He Ping Pan ◽  
Yong Hua Li
Keyword(s):  
Detection System ◽  
Capacitive Sensor ◽  
Logic Circuit ◽  
Liquid Level ◽  
Level Measurement ◽  
Liquid Level Measurement ◽  
Oil Tank ◽  
Processing Circuit ◽  
Easy Operation ◽  
Liquid Level Detection

The basic principle of liquid level measurement with capacitive sensor is described. According to differences in dielectric constant between oil and water, a liquid level detection system for oil tank is designed. The system includes capacitive sensor, signal processing circuit, FPGA logic circuit and the software of computer. Results show that the system has characteristics of easy operation, high precision. It can detect the change of liquid level accurately and effectively.

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