Very precise measurement of carbon dioxide atmospheric concentration by using TDLs

Francesco D'Amato; Antonio Lancia; Peter W. Werle

doi:10.1117/12.255325

21 October 1996 Very precise measurement of carbon dioxide atmospheric concentration by using TDLs

Francesco D'Amato, Antonio Lancia, Peter W. Werle

Proceedings Volume 2834, Application of Tunable Diode and Other Infrared Sources for Atmospheric Studies and Industrial Process Monitoring; (1996) https://doi.org/10.1117/12.255325
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

An instrument which will measure the atmospheric concentration of carbon dioxide with a resolution of one part in 10⁴ will be realized in the frame of 'environment and climate' program of the European Community. The aims are the evaluation of global climate changes and the measurement of the flux at the interface air-sea. The requirements for such an instrument apart form resolution are stability and insensitivity to water. This instrument is based on room temperature tunable diode lasers at about 6350 cm(superscript - by laser sources with the required spectral characteristics. The atmospheric concentration of carbon dioxide is about 350 ppm and its absorbance along a path of 100 m is of the order of 1 percent. The measurement will be performed in a multipass cell. A second cell will supply the references for frequency stabilization and laser power monitoring. The detection is realized through frequency modulation techniques. The various aspects of the work presently in progress will be presented: spectroscopy, optical layout, detection method and so on.

Citation Download Citation

Francesco D'Amato, Antonio Lancia, and Peter W. Werle "Very precise measurement of carbon dioxide atmospheric concentration by using TDLs", Proc. SPIE 2834, Application of Tunable Diode and Other Infrared Sources for Atmospheric Studies and Industrial Process Monitoring, (21 October 1996); https://doi.org/10.1117/12.255325

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