Proposed distance-measuring instrument compensates for variations in both dry atmospheric density and water-vapor content. Instrument would be expected to be more accurate than previous laser-ranging instruments. New rangefinder sends three signal trains to target: Two trains are at optical frequencies, and one is at a microwave frequency. All three signals are phase-locked.
Rangefinder Corrects for Air Density and Moisture
NASA Tech Briefs ; 6 , 2
1982-11-01
Miscellaneous
No indication
English
Engineering Index Backfile | 1963
Stroboscopic Stereo Rangefinder
British Library Conference Proceedings | 2001
|Computer corrects wagon wastage
Engineering Index Backfile | 1964
|NTIS | 1975
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