Multi-gas detection represents a suitable solution in many applications, such as
environmental and atmospheric monitoring, chemical reaction and industrial process …

Selectivity is one of the most crucial figures of merit in trace gas sensing, and thus a
comprehensive assessment is necessary to have a clear picture of sensitivity, selectivity …

We report a miniature dual-resonance photoacoustic (PA) sensor, mainly consisting of a
small resonant T-type PA cell and an integrated sensor probe based on a silicon cantilever …

We report on a statistical tool based on partial least-squares regression (PLSR) able to
retrieve single-component concentrations in a multiple-gas mixture characterized by …

In this work, we report on a quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor
for hydrogen sulfide (H 2 S) detection, exploiting a liquid-nitrogen-cooled THz quantum …

Quartz-enhanced photoacoustic spectroscopy represents a valuable candidate for natural
gas analysis in the oil & gas field. The core element of this spectroscopy technique is a …

We propose a high-sensitivity compact dual-T-type resonant fiber-optic photoacoustic (DTR-
FOPA) sensor for simultaneous detection of two gases. The designed DTR-FOPA sensor …

Abstract A high-sensitivity N 2 O photoacoustic sensor using a 4.53 μm quantum cascade
laser was developed. Sharply enhancement of photoacoustic signal of N 2 O with the …

The feeling of fear of an event is the beginning of the development of a security system that
begins with the creation of humans from several problems that must be resolved to be …

A compact laser photo-acoustic (PA) methane sensor based on a quantum-cascade laser
(∼ 7.7 μm; 1750 Hz; 25 mW), a resonant differential photo-acoustic detector (PAD), and a …