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 …
[HTML][HTML] Methodology and applications of acousto-electric analogy in photoacoustic cell design for trace gas analysis
Photoacoustic cells play an important role in photoacoustic trace gas analysis, as they can
amplify the photoacoustic signal and improve detection limit. Therefore, the structure and …
amplify the photoacoustic signal and improve detection limit. Therefore, the structure and …
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 …
Research progress on photoacoustic SF6 decomposition gas sensor in gas-insulated switchgear
In the power industry, sulfur hexafluoride (SF6) as an insulating gas is widely used in gas-
insulated switchgears (GISs). Owing to the latent inner insulation defects of GIS, various SF6 …
insulated switchgears (GISs). Owing to the latent inner insulation defects of GIS, various SF6 …
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 …
Ultra-high sensitive photoacoustic gas detector based on differential multi-pass cell
We designed and manufactured a set of high-sensitivity photoacoustic (PA) gas detector
based on differential multi-pass cell (DMPC) with a chamber volume of only 162 mL, which …
based on differential multi-pass cell (DMPC) with a chamber volume of only 162 mL, which …
[HTML][HTML] Quartz tuning fork-based demodulation of an acoustic signal induced by photo-thermo-elastic energy conversion
Z Lang, S Qiao, Y He, Y Ma - Photoacoustics, 2021 - Elsevier
A gas sensing method based on quartz-enhanced photothermal spectroscopy (QEPTS)
demodulated by quartz tuning fork (QTF) sensing acoustic wave is reported for the first time …
demodulated by quartz tuning fork (QTF) sensing acoustic wave is reported for the first time …
Rapid photoacoustic exhaust gas analyzer for simultaneous measurement of nitrogen dioxide and sulfur dioxide
A rapid photoacoustic (PA) exhaust gas analyzer is presented for simultaneous
measurements of nitrogen dioxide (NO2) and sulfur dioxide (SO2). A laser diode (LD) …
measurements of nitrogen dioxide (NO2) and sulfur dioxide (SO2). A laser diode (LD) …
Air pollution detection using a novel snap-shot hyperspectral imaging technique
A Mukundan, CC Huang, TC Men, FC Lin, HC Wang - Sensors, 2022 - mdpi.com
Air pollution has emerged as a global problem in recent years. Particularly, particulate
matter (PM2. 5) with a diameter of less than 2.5 μm can move through the air and transfer …
matter (PM2. 5) with a diameter of less than 2.5 μm can move through the air and transfer …
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 …