gas detector

(redirected from Gas sensor)

gas detector

[′gas di‚tek·tər]
(mining engineering)
A device which indicates the existence of firedamp or other combustible or noxious gas in a mine.
References in periodicals archive ?
According to report published by Grand View Research, The global volatile organic compound gas sensor market size was valued at USD 141.7 million in 2018 and is expected to register a CAGR of 4.0% from 2019 to 2025.
Apple, in the patent, described how its devices will be capable of detecting the presence of ozone gas in the atmosphere by means of several components: an enclosure, a light source positioned inside the enclosure, a port that will allow air to flow in and out of the enclosure, and a gas sensor also placed inside the enclosure.
To simplify installation and maintenance, the Rosemount 928 Gas Monitor has hot-swappable main components, including the power module and the Rosemount 628 toxic gas sensor. Both are intrinsically safe and can be replaced in the field in minutes without the need for tools.
Having a miniature gas sensor built into an iPhone or Apple Watch will be able to notify a user that they could possibly be in a dangerous environment at home, at work or in the public," Patently Apple said in a post.
The SGPC3 ultralower-power gas sensor makes indoor air quality sensing available for mobile and battery-driven applications.
But he recently received a gigantic boost after trade body the National Caravan Council(NCC) gave its backing to annual gas sensor tests, recommending Detectagas in a technical bulletin to manufacturers.
Since its discovery by Ijima [15], carbon nanotubes (CNTs) have extensive application especially in the gas sensor field due to their nanosize and large surface area ratio which are important for the interaction between the gas analyte and CNTs.
Fabrication of the Gas Sensor and the Gas Sensing Measurement System.
The most common gas sensor structures presented in the literature are the two-point and field-effect transistor (FET) structures (see Figure 7).
The gas diffusion model can be set up based on certain diffusion equations and some conditions, but due to such weather conditions having impact on the gas diffusion model as wind speed and direction, the previous diffusion model is not applicable, which may have the influence on the gas sensor deployment.
Many attempts have been made to develop gas sensor devices based on ceramic-based metal-oxide sensors, two-dimensional (2D) material-based sensors, mixed composite structures, structures decorated with second-phase particles, and metal-oxide-graphene based gas sensors [2].
"The existing technology required a specialist to go to each gas sensor and inject zero and span gas.