An ultrahigh sensitive trace gas sensing system was presented with dual cantilever-based
differential photoacoustic detection. By combining the double enhancement of multipass …

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 …

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 …

A self-calibration fiber-optic photoacoustic (PA) gas analyzer based on 2 f/1 f wavelength
modulation spectroscopy (WMS) is proposed, which utilizes gas and solid multipass …

Aiming at the problem of the fiber-optic photoacoustic (PA) sensor being easily disturbed by
external vibration and noise, a differential cantilever enhanced fiber-optic PA sensor is …

A rapid photoacoustic (PA) exhaust gas analyzer is presented for simultaneous
measurements of nitrogen dioxide (NO2) and sulfur dioxide (SO2). A laser diode (LD) …

A high-sensitivity fiber-optic photoacoustic sensor with pressure compensation is proposed
to analyze the decomposition component SO2 in high-pressure gas insulation equipment …

A miniature mid-infrared photoacoustic (PA) gas sensor with a chamber volume of
approximately 73 μL for detection of dissolved gases in seawater was presented. This …

A low-cost miniature diffusive infrared photoacoustic (PA) sensor (MDIPS) was proposed
and designed for the detection of carbon dioxide. To reduce the volume and the power …

Fiber-optic photoacoustic (PA) sensing has important applications in trace gas detection.
The fiber-optic Fabry-Perot acoustic sensor implemented applying a cantilever is a novel …