Apparatus and method for determining instantaneous spatial posit

Details Apparatus and method for determining instantaneous spatial posit Apparatus and method for determining instantaneous spatial posit

1991-05-21

1992-11-03

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356375, G01V 904

Patent

active

051608391

ABSTRACT:
The present invention utilizes, in combination, an irradiator, a screen and an optical sensor. The irradiator generates a parallel light band to form a linear image region on the screen. A spherical flying object is made to pass transversely through the parallel light band to form a silhouette within the image region. The silhouette is detected by the optical sensor to determine the instantaneous spatial position of the flying object. The position thus determined may be utilized for example to calculate the initial trajectory angle of a golf ball hit from a fixed position.

REFERENCES:
patent: 4105925 (1978-08-01), Rossol et al.
patent: 5008529 (1991-04-01), Nakamura

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