Optics: measuring and testing – Velocity or velocity/height measuring – With light detector
Patent
1995-11-01
1997-10-28
Buczinski, Stephen C.
Optics: measuring and testing
Velocity or velocity/height measuring
With light detector
356 401, 473131, 473152, 473190, 473219, G01P 336, G01C 308, A63B 6936
Patent
active
056822308
ABSTRACT:
The test range is provided with a calibration system for calibrating the exact position of a light curtain formed by a ballistic screen. The calibration system uses a model ball which can be moved through a light screen at high speed in order to simulate the actual passage of a driven golf ball through the light screen. Positioning of the model golf ball at a point at which the golf ball just contacts the light screen serves to determine the exact location of the light screen. A laser ranging device is used to locate the calibration system relative to a launch point. Thus, the precise distance of the curtain of light from the launch point can be readily determined. The calibration system may also be used to determine if a ballistic screen is mounted in a true vertical plane.
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patent: 3759528 (1973-09-01), Christophers et al.
patent: 4770527 (1988-09-01), Park
patent: 5024441 (1991-06-01), Rousseau
patent: 5171013 (1992-12-01), Dooley
patent: 5437457 (1995-08-01), Curchod
patent: 5481355 (1996-01-01), Iijima et al.
patent: 5568250 (1996-10-01), Nishiyama et al.
Anfinsen Leonard F.
Chrapowicki Stanley E.
Lieberman Burton B.
Smits Alexander J.
Soriano Bernard C.
Buczinski Stephen C.
United States Golf Association
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