Laser Based Absorption Sensors for Trace Gas Monitoring in a Spacecraft Habitat

Paper #:
  • 1999-01-2151

Published:
  • 1999-07-12
Citation:
Tittel, F., Lancaster, D., Richter, D., Curl, R. et al., "Laser Based Absorption Sensors for Trace Gas Monitoring in a Spacecraft Habitat," SAE Technical Paper 1999-01-2151, 1999, https://doi.org/10.4271/1999-01-2151.
Pages:
9
Abstract:
The use of a unique laser based compact gas sensor based on continuous wave (cw) difference frequency generation using non-linear optical conversion is reported for on-line, real-time measurements of H2CO, CH4 and H2O. Specifically, this portable sensor was used to monitor H2CO levels with a sensitivity of ~30 ppb during the 90 day Lunar-Mars Life Support Test Program conducted at NASA-JSC in 1997.
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