Ultrahigh sensitive trace gas sensing system with dual fiber-optic cantilever multiplexing-based differential photoacoustic detection
An ultrahigh sensitive trace gas sensing system was presented with dual cantilever-based
differential photoacoustic detection. By combining the double enhancement of multipass …
differential photoacoustic detection. By combining the double enhancement of multipass …
[HTML][HTML] Integrated near-infrared fiber-optic photoacoustic sensing demodulator for ultra-high sensitivity gas detection
An integrated near-infrared fiber-optic photoacoustic sensing demodulator was established
for ultra-high sensitivity gas detection. The demodulator has capacities of interference …
for ultra-high sensitivity gas detection. The demodulator has capacities of interference …
Multiplexed fiber-optic photoacoustic sensors for simultaneous detection of multi-point gases
A multiplexing scheme of fiber-optic photoacoustic (PA) gas sensors is demonstrated for
simultaneous detection of multi-point gases. By sharing the PA demodulation device, the …
simultaneous detection of multi-point gases. By sharing the PA demodulation device, the …
Cantilever enhanced fiber-optic photoacoustic microprobe for diffusion detection of sulfur dioxide
A cantilever enhanced fiber-optic photoacoustic microprobe with the cavity volume of only
119 μL is designed to detect SO 2, which has the obvious advantages of passive sensing …
119 μL is designed to detect SO 2, which has the obvious advantages of passive sensing …
High-precision photoacoustic nitrogen dioxide gas analyzer for fast dynamic measurement
A high-precision photoacoustic (PA) gas analyzer for fast dynamic measurement of ambient
nitrogen dioxide (NO2) was developed. The PA analyzer used a differential PA cell …
nitrogen dioxide (NO2) was developed. The PA analyzer used a differential PA cell …
Fiber-optic photoacoustic gas sensor with multiplexed fabry–pérot interferometric cantilevers
A fiber-optic photoacoustic (PA) gas sensor with multiplexed Fabry–Pérot (F–P)
interferometric cantilevers is demonstrated. A compact cylindrical nonresonant PA tube with …
interferometric cantilevers is demonstrated. A compact cylindrical nonresonant PA tube with …
[HTML][HTML] High-sensitivity trace gas detection based on differential Helmholtz photoacoustic cell with dense spot pattern
C Zhang, Y He, S Qiao, Y Liu, Y Ma - Photoacoustics, 2024 - Elsevier
A high-sensitivity photoacoustic spectroscopy (PAS) sensor based on differential Helmholtz
photoacoustic cell (DHPAC) with dense spot pattern is reported in this paper for the first time …
photoacoustic cell (DHPAC) with dense spot pattern is reported in this paper for the first time …
Detection of gaseous halocarbon refrigerants and extinguishing agent based on photoacoustic spectroscopy
A photoacoustic (PA) gaseous halocarbon refrigerants and extinguishing agent detector
based on a mid-infrared broadband source was developed. H1301 (extinguishing agent) …
based on a mid-infrared broadband source was developed. H1301 (extinguishing agent) …
Fiber-optic trace gas sensing based on graphite excited photoacoustic wave
A fiber-optic trace gas sensing system based on photoacoustic (PA) effect of solids is
reported. The modulated laser light absorbed by the gas is incident on a graphite sheet. The …
reported. The modulated laser light absorbed by the gas is incident on a graphite sheet. The …
All-optical photoacoustic detection of SF6 decomposition component SO2 based on fiber-coupled UV-LED
An all-optical photoacoustic sensor for measuring the concentration of SF 6 decomposition
derivative SO 2 was designed, whose detection limit was in the order of ppb-level. An UV …
derivative SO 2 was designed, whose detection limit was in the order of ppb-level. An UV …