Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Patent
1979-08-01
1981-11-10
Buczinski, S. C.
Optics: measuring and testing
Velocity or velocity/height measuring
With light detector
356 285, 364819, G01C 308, G01C 336
Patent
active
042994845
ABSTRACT:
Range and speed measuring equipment is disclosed including a laser transmitter for transmitting laser pulses of a noise modulated carrier frequency toward a target. Return pulses are received by a receiver including a photodetector for mixing the return pulses with a reference signal. The photodetector output signal is supplied to a frequency discriminator or a frequency counter whose output is averaged to indicate range. Noise modulators entirely external to and partially incorporated within the laser oscillator are shown. Means are shown both for deriving the reference signal from the transmitted pulses and for producing the reference signal with a reference oscillator.
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patent: 3864041 (1975-02-01), Long
patent: 3900261 (1975-08-01), Wingate
patent: 3908118 (1975-09-01), Micka
patent: 4005936 (1977-02-01), Redman et al.
Wang, Appl. Phys. Lett., vol. 20, No. 9, 1 May 1972.
Buczinski S. C.
Honeywell GmbH
Rubow Charles L.
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