Spectrophone, using continuous laser beam, operates at lower noise levels and thus detects trace amounts of gases with greater sensitivity.
Low-noise spectrophone
NASA Tech Briefs ; 4 , 1
1979-08-01
Miscellaneous
No indication
English
NTRS | 1978
|NTRS | 1979
|Adjustable-Frequency Spectrophone Laser Stabilization
NTRS | 1985
|TIBKAT | 1973
|Rolling Noise and Vehicle Noise
NTIS | 1974
|