Vibration analysis of a new polymer quartz piezoelectric crystal sensor for detecting characteristic materials of volatility liquid

doi:10.1088/1674-1056/23/1/017804

Abstract We present a new polymer quartz piezoelectric crystal sensor that takes a quartz piezoelectric crystal as the basal material and a nanometer nonmetallic polymer thin film as the surface coating based on the principle of quartz crystal microbalance (QCM). The new sensor can be used to detect the characteristic materials of a volatile liquid. A mechanical model of the new sensor was built, whose structure was a thin circle plate composing of polytef/quartz piezoelectric/polytef. The mechanical model had a diameter of 8 mm and a thickness of 170 μm. The vibration state of the model was simulated by software ANSYS after the physical parameters and the boundary condition of the new sensor were set. According to the results of experiments, we set up a frequency range from 9.995850 MHz to 9.997225 MHz, 17 kinds of frequencies and modes of vibration were obtained within this range. We found a special frequency f_sp of 9.996358 MHz. When the resonant frequency of the new sensor’s mechanical model reached the special frequency, a special phenomenon occurred. In this case, the amplitude of the center point O on the mechanical model reached the maximum value. At the same time, the minimum absolute difference between the simulated frequency based on the ANSYS software and the experimental measured stable frequency was reached. The research showed that the design of the new polymer quartz piezoelectric crystal sensor perfectly conforms to the principle of QCM. A special frequency value f_sp was found and subsequently became one of the most important parameters in the new sensor design.

Keywords: quartz piezoelectric crystal sensor quartz crystal microbalance vibration analysis special resonator frequency

Received: 28 August 2013
Revised: 23 September 2013
Accepted manuscript online:

PACS:	78.20.Bh	(Theory, models, and numerical simulation)
	68.43.-h	(Chemisorption/physisorption: adsorbates on surfaces)
	07.07.Df	(Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing)

Fund: Project supported by the National High Technology Research and Development Program of China (Grant No. 2013AA030901).

Corresponding Authors: Gu Yu
E-mail: yugu@bjtu.edu.cn

Cite this article:

Gu Yu (谷宇), Li Qiang (李强), Xu Bao-Jun (许保军), Zhao Zhe (赵喆) Vibration analysis of a new polymer quartz piezoelectric crystal sensor for detecting characteristic materials of volatility liquid 2014 Chin. Phys. B 23 017804

[1]	Tan F and Huang X H 2013 Chin. Phys. Lett. 30 050701
[2]	Mecea V M, Carlesson J, Alm O and Boman M 2006 Sensors and Actuators A 125 143
[3]	Hussain M, Iqbal N and Lieberzeit P A 2013 Sensors and Actuators B 176 1090
[4]	Lu F, Lee H P and Lim S P 2005 Smart Mater. Struct. 14 272
[5]	Lu F, Lee H P, Lu P and Lim S P 2005 Sensors and Actuator A 119 90
[6]	Khasan S K, Muhammad T S, Fazal A K and Syed A M 2011 Chin. Phys. B 20 040601
[7]	Chen L, Li P, Wen Y M and Zhu Y 2013 Chin. Phys. B 22 077505
[8]	Gu Y, Li Q, Tian F F and Xu B J 2013 Chin. Phys. Lett. 30 108101

[1]	Effects of square micro-pillar array porosity on the liquid motion of near surface layer Xiaoxi Qiao(乔小溪), Xiangjun Zhang(张向军), Ping Chen(陈平), Yu Tian(田煜), Yonggang Meng(孟永钢). Chin. Phys. B, 2020, 29(2): 024702.
[2]	Hybrid temperature effect on a quartz crystal microbalance resonator in aqueous solutions Qiang Li(李强), Yu Gu(谷宇), Bin Xie(谢斌). Chin. Phys. B, 2017, 26(6): 067704.
[3]	New pattern recognition system in the e-nose for Chinese spirit identification Hui Zeng(曾慧), Qiang Li(李强), Yu Gu(谷宇). Chin. Phys. B, 2016, 25(2): 024201.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Metrics
Related Articles

Vibration analysis of a new polymer quartz piezoelectric crystal sensor for detecting characteristic materials of volatility liquid

Cite this article:

Online attention