Distance measuring system

Details Distance measuring system Distance measuring system

1995-02-06

1996-11-26

Wieder, Kenneth A.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

324637, 324644, 324 72, 342125, 342129, 342384, G01S 1100

Patent

active

055789331

ABSTRACT:
A distance measuring system for measuring a distance between two objects has a transmitter assembly mounted on one of the two objects, for transmitting a plurality of electromagnetic waves having respective wavelengths different from each other at respective levels toward the other of the two objects, a receiver assembly mounted on the other object, for receiving the electromagnetic waves transmitted from the transmitting means, and a distance detector for detecting a ratio of levels at which at least one set of electromagnetic waves of the electromagnetic waves is received by the receiving means, as corresponding to a distance between the two objects, and determining the distance between the two objects from the ratio.

REFERENCES:
patent: 4672305 (1987-06-01), Coleman
patent: 4785291 (1988-11-01), Hawthorne
patent: 5194906 (1993-03-01), Kimura
patent: 5220332 (1993-06-01), Beckner
patent: 5424747 (1995-06-01), Chazuelas

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