Numerical modeling and performance optimization of QEPAS spectrophone

Yingchun Cao; Wei Jin; Hoi Lut Ho

doi:10.1117/12.973700

7 November 2012 Numerical modeling and performance optimization of QEPAS spectrophone

Yingchun Cao, Wei Jin, Hoi Lut Ho

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842167 (2012) https://doi.org/10.1117/12.973700
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

The spectrophone performance for QEPAS is numerically investigated by using a finite element method. The effect of varying system parameters such as the excitation frequency, relative position between the acoustic resonant tubes and the quartz tuning fork, and the dimensions of resonant tubes are examined A pair of rigid tubes, each with a length of 5.1 mm and an inner diameter of 0.2 mm, positioned 0.6 μm down from the opening and 20 μm away from the edge of tuning fork is suggested for optimal spectrophone performance.

Citation Download Citation

Yingchun Cao, Wei Jin, and Hoi Lut Ho "Numerical modeling and performance optimization of QEPAS spectrophone", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842167 (7 November 2012); https://doi.org/10.1117/12.973700

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