Drips detection sensor of cylindrical surface capacitor

Author

Wenzhao Zhang ; Wenzhen Zhou ; Zhizhuang Liu

Author_Institution

Dept. of Electron. Eng., Hunan Univ. of Sci. & Eng., Yongzhou, China

fYear

2011

fDate

16-18 Sept. 2011

Firstpage

653

Lastpage

656

Abstract

The detection on drips velocity is used extensively in medicine or other field such as micro-flow measurement. A cylindrical capacitor sensor is manufactured for drips detection and micro-flow measurement with counting method. The cylindrical capacitor wave when a drip fall into or pass through it; a digital pulse signal is obtained by a chip which is employed to convert capacitance to digital value, then the drips velocity is acquired by using microprocessor. The experimental results have shown that the drips capacitor sensor can be used to detect liquid drops, its precision is prior to 99%.

Keywords

capacitive sensors; flow measurement; microprocessor chips; microsensors; counting method; cylindrical surface capacitor sensor; digital pulse signal; drips capacitor sensor; drips detection sensor; microflow measurement; microprocessor; Capacitance; Capacitors; Educational institutions; Fluid flow; Instruments; Plastics; Ultrasonic variables measurement; AD7150; Capacitance digital converter; Capacitor sensor; Cylindrical surface capacitor; Drips detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Control Engineering (ICECE), 2011 International Conference on

Conference_Location

Yichang

Print_ISBN

978-1-4244-8162-0

Type

conf

DOI

10.1109/ICECENG.2011.6057536

Filename

6057536