The document discusses how MEMS-based infrared sources from Axetris can reduce the warm up time of non-dispersive infrared (NDIR) gas sensors. These infrared sources have a unique thin-film process that provides high electrical efficiency and low optical losses, allowing the emitting structure to quickly heat up within 11 milliseconds. Axetris also supports customers with characterization information and integration practices to help achieve a quick warm-up phase for the NDIR gas sensor.

1. Reducing Warm Up Time of NDIR Gas Sensors | ISweek - Industry sourcing
MEMS-based electrically-efficient infrared sources from Axetris — In a number of gas
detection applications, a short warm-up time of the gas sensor is critical. Especially for
applications where discrete measurements need to be made, and where the gas sensor
is not continuously switched on, a short warm-up time is absolutely essential. This is the
case for portable gas detection devices, e.g. for combustible and toxic gas detection,
refrigerant leak detection or breath alcohol measurement.
Gas sensors based on non-dispersive infrared (NDIR) spectroscopy can guarantee
accurate gas concentration values only after a thermally stable state is achieved. The
MEMS-based infrared sources from Axetris are produced using a unique thin-film
process, and exhibit very high electrical efficiency. This leads to lower optical losses in
the form of dissipated heat. Additionally, the emitting blackbody structure has a very low
thermal mass, leading to a quick heating time constant of 11 milliseconds.
Besides the inherent advantages offered by the design of the infrared sources, Axetris
supports its customers with comprehensive characterization information, as well as by
suggesting efficient integration practices in order to achieve a quick warm-up phase.
Thermal management thus becomes an easy task, and a quick warm-up time of the
NDIR gas sensor can be achieved.
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