Method of and device for detecting position of body

Details Method of and device for detecting position of body Method of and device for detecting position of body

1989-09-01

1992-07-21

Rosenberger, Richard A.

Optics: measuring and testing

By polarized light examination

With light attenuation

356372, G01B 1114

Patent

active

051317540

ABSTRACT:
A method of and a device for detecting a position of a body by without the necessity of a special detector or a very complicated calculating processing. According to the method, a position of a body is detected by measuring spatial coordinates of three, two and one points on faces of the body which are included in three mutually intersecting planes. The positions detecting device includes a switch for detecting a predetermined position of a moving body in a first direction, and first and second distance measuring devices which operate, in response to the switch, individually at two different timings to measure distances from known points in directions oblique to the first direction and to each other to three and two points on different oblique faces of the body, respectively. A processor calculates a position of the body in accordance with results and timings of the measurements by the first and second distance measuring devices and predetermined data defining the configuration of the body.

REFERENCES:
patent: 4063820 (1977-12-01), Borgese
patent: 4486776 (1984-12-01), Yoshida
patent: 4509265 (1985-04-01), Donaldson
patent: 4639878 (1987-01-01), Day et al.
patent: 4662752 (1987-05-01), Tucker et al.
patent: 4682894 (1987-07-01), Schmidt et al.
patent: 4925308 (1990-05-01), Stern et al.

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