Distant measurement method and distant measurement system

Details Distant measurement method and distant measurement system Distant measurement method and distant measurement system

2008-02-05

2010-06-15

Alsomiri, Isam (Department: 3662)

Optics: measuring and testing

Range or remote distance finding

With photodetection

C356S005100

Reexamination Certificate

active

07738083

ABSTRACT:
A distant measurement method and a distant measurement system are provided. The distant measurement method includes the following steps: emitting a first light beam and a second light beam from an emitting terminal, wherein the first light beam travels toward a target; providing a switching sequence by a switch mechanism; placing a receiving terminal to receive the first light beam reflected from the target in accordance with the switching sequence and correspondingly provide a first electrical signal, and to receive the second light beam and correspondingly provide a second electrical signal; and utilizing a controlling terminal to receive the first and second electrical signals, and calculate distance between the distant measurement system and the target in accordance with a phase differential formed between the first and second electrical signals.

REFERENCES:
patent: 5082364 (1992-01-01), Russell
patent: 5949531 (1999-09-01), Ehbets et al.
patent: 6369880 (2002-04-01), Steinlechner
patent: 6633367 (2003-10-01), Gogolla
patent: 2008/0239281 (2008-10-01), Bridges

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