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2013 (Vol. 5, Issue: 04)
Article Information:

Micro-Temperature Sensor Based on Quartz Tuning Fork Resonator

Jing Ma, Jun Xu, Jinhua Duan and Haibo Xu
Corresponding Author:  Jing Ma 

Key words:  Finite element method, quartz, resonance frequency, temperature senor, tuning fork, , ,
Vol. 5 , (04): 1232-1237
Submitted Accepted Published
June 23, 2012 August 17, 2012 February 01, 2013
Abstract:

In this study, a low cost quartz tuning fork temperature sensor adopting H-shaped tuning fork resonator to address miniaturization, high resolution and high stability has been designed, developed and tested. The quartz tuning temperature sensor is designed using flexural vibrating mode with a new thermo-sensitive cut. The quartz tuning fork temperature sensor consists of two prongs connected at one end of crystalline quartz plate with thin-film metal electrodes deposited on the faces, which is used to produce vibration in response to alternating voltages and detecting the resonance frequency in the meantime. When an external temperature is change, there is a shift in its natural frequency. Finite Element Method (FEM) is used to analyze the vibratory modes and optimize the structure of the sensor. The resonance frequency of tuning fork is about 37 kHz with a sensitivity of rough 80 ppm/C. The experimental results shown that a temperature accuracy of 0.01C and a resolution of 0.005C within temperature range from 0 to 100C, respectively.
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  Cite this Reference:
Jing Ma, Jun Xu, Jinhua Duan and Haibo Xu, 2013. Micro-Temperature Sensor Based on Quartz Tuning Fork Resonator.  Research Journal of Applied Sciences, Engineering and Technology, 5(04): 1232-1237.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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