Abstract
| Original language | English |
|---|---|
| Number of pages | 3 |
| Publication status | Published - 30 Oct 2017 |
| Event | IEEE SENSORS 2017 - Scottish Exhibition and Conference Centre, Glasgow, United Kingdom Duration: 29 Oct 2017 → 1 Nov 2017 |
Conference
| Conference | IEEE SENSORS 2017 |
|---|---|
| Country | United Kingdom |
| City | Glasgow |
| Period | 29/10/17 → 1/11/17 |
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Keywords
- photoacoustic sensors
- 3D printed photoacoustic trace gas sensor
- 3D Printing
- photoacoustic spectroscopy (PAS)
- laser absorption
- TDLS
Cite this
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Performance of a azimuthally excited 3D-printed resonator for multi-pass spectroscopic applications. / Humphries, Gordon S.; Bauer, Ralf; Lengden, Michael.
2017. Paper presented at IEEE SENSORS 2017, Glasgow, United Kingdom.Research output: Contribution to conference › Paper
TY - CONF
T1 - Performance of a azimuthally excited 3D-printed resonator for multi-pass spectroscopic applications
AU - Humphries, Gordon S.
AU - Bauer, Ralf
AU - Lengden, Michael
PY - 2017/10/30
Y1 - 2017/10/30
N2 - A design is presented for an acoustically resonant cell, based on the excitation of azimuthal resonances, to enhance the sensitivity of multi-pass photoacoustic spectroscopy. The acoustic cell is fabricated in one part using a photo-polymerization based 3D-Printing technique. Characterization of the cell performance is undertaken using calibrated concentrations of methane. The quality factor (< 76) of the cell compares favorably to existing designs based on longitudinal resonances. The minimum detectable normalized noise equivalent absorption coefficient for the cell was measured as: 3.667×10^ -10 Wcm^-1 Hz^-1/2, resulting in a minimum sensitivity for methane of 6 ppm with 700 s of averaging.
AB - A design is presented for an acoustically resonant cell, based on the excitation of azimuthal resonances, to enhance the sensitivity of multi-pass photoacoustic spectroscopy. The acoustic cell is fabricated in one part using a photo-polymerization based 3D-Printing technique. Characterization of the cell performance is undertaken using calibrated concentrations of methane. The quality factor (< 76) of the cell compares favorably to existing designs based on longitudinal resonances. The minimum detectable normalized noise equivalent absorption coefficient for the cell was measured as: 3.667×10^ -10 Wcm^-1 Hz^-1/2, resulting in a minimum sensitivity for methane of 6 ppm with 700 s of averaging.
KW - photoacoustic sensors
KW - 3D printed photoacoustic trace gas sensor
KW - 3D Printing
KW - photoacoustic spectroscopy (PAS)
KW - laser absorption
KW - TDLS
UR - http://ieee-sensors2017.org/
M3 - Paper
ER -