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A Semiconductor Skylight Optical Screen for Projectile Detection,
DEFENCE RESEARCH ESTABLISHMENT VALCARTIER QUEBEC
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The Note presents the design, detection capabilities, and testing of a wide-angle skylight optical screen primarily intended for use in the measurement of projectile velocity and retard on outdoor ranges. Semiconductor electronics have enabled the construction of a unit ideally suited for use in remote areas where it is advantageous to employ a light, easily portable instrument designed for operation from either a low voltage battery source or 100 VAC power line. Author
APPROVED FOR PUBLIC RELEASE