Laser Ranging System with 1-cm Resolution.

Autor: Golden KE, Kind DE, Leonard SL, Ward RC
Jazyk: angličtina
Zdroj: Applied optics [Appl Opt] 1973 Jul 01; Vol. 12 (7), pp. 1447-53.
DOI: 10.1364/AO.12.001447
Abstrakt: A laser ranging system has been developed in which an image converter tube equipped with deflection plates is used to make a precise measurement of the fractional amount by which the time of flight of the ranging pulse exceeds an integral multiple N of the period of a stable oscillator. The value of N is determined in an auxiliary measurement. In short-range tests with a laboratory breadboard version of the system, time-of-flight uncertainties of about 45 psec were observed. The corresponding uncertainty in a range measurement is smaller than 7 mm.
Databáze: MEDLINE