Light-wave distance meter based on light pulses

Details Light-wave distance meter based on light pulses Light-wave distance meter based on light pulses

1994-11-18

1997-04-08

Tarcza, Thomas H.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356 507, 356 508, G01C 308, G01S 1700

Patent

active

056193173

ABSTRACT:
In a light-wave distance meter based on light pulses, a light pulse radiation device radiates light pulses emitted by a light source device to a target of measurement, a light reception device receives reflected light pulses from the target, a sampling device samples reception signals, a timing device applies a dither of a certain range to the light pulse emission timing and sampling timing, a cumulative memory device stores sampled signals at a certain interval cumulatively, and a computation device calculates the distance to the target. The distance meter is capable of measuring the position of received light pulses at a resolution higher than the sampling timing.

REFERENCES:
patent: 3900261 (1975-08-01), Wingate
patent: 4344705 (1982-08-01), Kompa et al.
patent: 5102219 (1992-04-01), Skagerlund
patent: 5179286 (1993-01-01), Akasu
patent: 5353228 (1994-10-01), Geiss et al.

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