Compact spectroscopic sensor for air quality monitoring in spacecrafts

Benjamin Scherer; Hakim Hamid; Jürgen Rosskopf; Siamak Forouhar

doi:10.1117/12.875237

24 January 2011 Compact spectroscopic sensor for air quality monitoring in spacecrafts

Benjamin Scherer, Hakim Hamid, Jürgen Rosskopf, Siamak Forouhar

Proceedings Volume 7945, Quantum Sensing and Nanophotonic Devices VIII; 79450S (2011) https://doi.org/10.1117/12.875237
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

The air quality of any manned spacecraft needs to be continuously monitored in order to safeguard the health of the crew. Any fire event, accidental release of harmful gaseous contaminants or a malfunction in the air revitalization system has to be detected as fast as possible to provide enough time for the crew to react. In this paper, a fast sensor system based on laser spectroscopy is presented, which is able to detect three important gases: carbon monoxide for fire detection, hydrogen chloride for fire characterization and oxygen to monitor the air vitalization system. To provide a long maintenance-free operation time without the need for any consumables except power, a calibration-free measurement method was developed, which is only based on molecule specific constants which are available from the molecular data base HITRAN. The presented sensor offers the possibility for reliable and crosssensitivity-free air quality monitoring over a large pressure and temperature range.

Citation Download Citation

Benjamin Scherer, Hakim Hamid, Jürgen Rosskopf, and Siamak Forouhar "Compact spectroscopic sensor for air quality monitoring in spacecrafts", Proc. SPIE 7945, Quantum Sensing and Nanophotonic Devices VIII, 79450S (24 January 2011); https://doi.org/10.1117/12.875237

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available