The vast majority of gaseous chemical substances exhibit fundamental rovibrational
absorption bands in the mid-infrared spectral region (2.5–25 μm), and the absorption of light …

Laser absorption spectroscopy (LAS) is a promising diagnostic method capable of providing
high-bandwidth, species-specific sensing, and highly quantitative measurements. This …

Tunable diode laser absorption spectroscopy (TDLAS) for trace gas sensing has been
investigated widely. Conventional wavelength-modulation spectroscopy (WMS) in TDLAS …

A highly precise dual gas sensor for measurement of atmospheric nitrous oxide (N 2 O) and
carbon monoxide (CO) was developed and evaluated. A room temperature interband …

We report a multi-pass tunable diode laser absorption spectrometer based on the frequency-
modulation spectroscopy (FMS) technique. It has the advantage of high scan speed and is …

Insights toward detecting hazardous NO2 gas at room temperature with nearly humidity-
independent sensing characteristics has been promisingly envisioned yet rare reports have …

In the process of methane measurement based on tunable diode laser absorption
spectroscopy (TDLAS), the interference fringes generated by the multiple reflections and …

The monitoring sensitivity of dissolved C 2 H 2 in transformer oil is crucial to ensuring the
safe operation of electric power systems. A highly sensitive sensor system based on fixed …

This paper presents the description of the wavelength modulation spectroscopy (WMS)
experiment, the parameters of which were established by use of the Artificial Intelligence (AI) …

A highly sensitive acetylene (C 2 H 2) sensor system was demonstrated using tunable diode
laser absorption spectroscopy (TDLAS) based on a compact multi-pass gas cell with a 10 m …