A Miniaturized QEPAS Trace Gas Sensor with a 3D-Printed Acoustic Detection Module

Yang, Xiaotao; Xiao, Youhong; Ma, Yufei; He, Ying; Tittel, Frank K.

doi:https://doi.org/10.3390/s17081750

Name:: Miniaturized_QEPAS_Trace_Gas_S ...
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Author

Yang, Xiaotao

Xiao, Youhong

Ma, Yufei

He, Ying

Tittel, Frank K.

Date

2017

Citation

Yang, Xiaotao, Xiao, Youhong, Ma, Yufei, et al.. "A Miniaturized QEPAS Trace Gas Sensor with a 3D-Printed Acoustic Detection Module." Sensors, 17, no. 8 (2017) https://doi.org/10.3390/s17081750.

Published Version

https://doi.org/10.3390/s17081750

Abstract

A 3D printing technique was introduced to a quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor and is reported for the first time. The acoustic detection module (ADM) was designed and fabricated using the 3D printing technique and the ADM volume was compressed significantly. Furthermore, a small grin lens was used for laser focusing and facilitated the beam adjustment in the 3D-printed ADM. A quartz tuning fork (QTF) with a low resonance frequency of 30.72 kHz was used as the acoustic wave transducer and acetylene (C2H2) was chosen as the analyte. The reported miniaturized QEPAS trace gas sensor is useful in actual sensor applications.

Keyword

3D printing; C2H2 quantification; QEPAS; miniaturization

Type

Journal article

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