DocumentCode :
1955504
Title :
The simulation of frequency-capacitance characteristics of fresh water conductivity sensor
Author :
Yi, Jikun ; Li, Wei ; Lingfang Wang ; Zhiyu Wen
fYear :
2009
fDate :
5-8 Jan. 2009
Firstpage :
29
Lastpage :
32
Abstract :
A frequency based sensor is presented to measure the conductivity of fresh water. A MEMS based conductivity sensor is designed to form the RC-Wien-Bridge Oscillator, and the conductivity of tested sample could be obtained according to frequency of the Oscillator by calibrating the frequency to the conductivity of standard liquid. In this paper, system description and electronic simulation are presented with an emphasis on the simulation of actual capacitance and frequency-capacitance characteristics of fresh water conductivity sensor. The results indicate the frequency range dedicated for fresh water conductivity measurement is from 90 kHz to 434 KHz. It is promising to measure the conductivity of fresh water with this kind of frequency based sensor.
Keywords :
electric sensing devices; electrical conductivity; micromechanical devices; oscillators; water; MEMS; RC-Wien-Bridge oscillator; conductivity sensor; frequency 90 kHz to 434 kHz; frequency-capacitance characteristics; fresh water; Capacitance-voltage characteristics; Capacitive sensors; Conductivity measurement; Frequency measurement; Micromechanical devices; Oscillators; Sensor phenomena and characterization; Sensor systems; Testing; Water; Conductivity sensor; Frequency; Fresh water; Wien-Bridge Oscillator;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Nano/Micro Engineered and Molecular Systems, 2009. NEMS 2009. 4th IEEE International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-4629-2
Electronic_ISBN :
978-1-4244-4630-8
Type :
conf
DOI :
10.1109/NEMS.2009.5068520
Filename :
5068520
Link To Document :
بازگشت