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Proceedings Paper

Research of the measure principle of the liquor resonance sensor
Author(s): Qi Zhou; Shengxiong Liu; Ke Xu; Cuicui Min; Shijun Xu; Jun Xiao
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Paper Abstract

Various sensors based on the piezoelectric crystal have been widely used in the process of research. Currently, the research and application of the piezoelectric sensors are mostly based on the "mass responses" and "non-mass responses" of the piezoelectric crystal. But in the researches and applications of the piezoelectric crystal sensors, many phenomenons have been found which can not be explained and can not accord with the Sauerbrey theory based on the "mass responses". And the scholars often explained those phenomenons with the "non-mass response of the piezoelectric crystal" [1]. In our researches, we improved the detectors and got some primary experimental results. And the results showed that the non-mass respones has no relation to the piezoelectric sensor, and it related to the characteristics of the liquor itself. Based on the results, it can be reckoned that this is a new physical phenomenon, that is to say, the liquor has the electrical resonance characteristic which likes the characteristic of the piezoelectric crystal, and can identify the characteristic of the liquor using the frequency of the electrical resonance. As soon as any of the characteristics of the liquor changed such as component, and density, the resonance frequency will change accordingly.

Paper Details

Date Published: 9 January 2008
PDF: 6 pages
Proc. SPIE 6794, ICMIT 2007: Mechatronics, MEMS, and Smart Materials, 67943E (9 January 2008); doi: 10.1117/12.783866
Show Author Affiliations
Qi Zhou, Chongqing Institute of Technology (China)
Shengxiong Liu, Chongqing Institute of Technology (China)
Ke Xu, Chongqing Institute of Technology (China)
Cuicui Min, Chongqing Institute of Technology (China)
Shijun Xu, Chongqing Institute of Technology (China)
Jun Xiao, Chongqing Institute of Technology (China)


Published in SPIE Proceedings Vol. 6794:
ICMIT 2007: Mechatronics, MEMS, and Smart Materials

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