[HTML][HTML] Laser sensors for energy systems and process industries: Perspectives and directions
Sensors are perhaps the most important and integral components of our modern society.
With global warming and environmental pollution garnering ever-increasing attention, as …
With global warming and environmental pollution garnering ever-increasing attention, as …
Direct absorption and photoacoustic spectroscopy for gas sensing and analysis: a critical review
Optical spectroscopy has a broad scientific basis in chemistry, physics, and material science,
with diverse applications in medicine, pharmaceuticals, agriculture, and environmental …
with diverse applications in medicine, pharmaceuticals, agriculture, and environmental …
Differential quartz-enhanced photoacoustic spectroscopy
C Zhang, S Qiao, Y He, S Zhou, L Qi, Y Ma - Applied Physics Letters, 2023 - pubs.aip.org
In this paper, a differential quartz-enhanced photoacoustic spectroscopy (D-QEPAS) sensor
is reported. The differential photoacoustic cell (PAC) was used to generate the …
is reported. The differential photoacoustic cell (PAC) was used to generate the …
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 …
Detection of SF6 gas decomposition component H2S based on fiber-optic photoacoustic sensing
A high-sensitivity fiber-optic Fabry-Perot (FP) photoacoustic gas detection system with
properties of anti-electromagnetic interference and intrinsically safe was presented for …
properties of anti-electromagnetic interference and intrinsically safe was presented for …
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] Cantilever-enhanced photoacoustic spectroscopy for gas sensing: A comparison of different displacement detection methods
Photoacoustic spectroscopy (PAS) combines the advantages of high sensitivity, high
specificity and zero background, which is very suitable for trace gas detection. Cantilever …
specificity and zero background, which is very suitable for trace gas detection. Cantilever …
[HTML][HTML] Ultra-sensitive ppb-level methane detection based on NIR all-optical photoacoustic spectroscopy by using differential fiber-optic microphones with gold …
H Xiao, J Zhao, C Sima, P Lu, Y Long, Y Ai, W Zhang… - Photoacoustics, 2022 - Elsevier
In this paper, we propose and experimentally demonstrate an ultra-sensitive all-optical PAS
gas sensor, incorporating with a near-infrared (NIR) diode laser, fiber-optic microphones …
gas sensor, incorporating with a near-infrared (NIR) diode laser, fiber-optic microphones …