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Proceedings Paper

An Optical Gun Muzzle Sensor To Improve Firing Accuracy
Author(s): Raymond Carbonneau; Jacques Dubois; Geoffrey Harris
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Paper Abstract

Thermal deformations of gun/tank components can affect the firing accuracy of modern tanks. To alleviate this problem, an optical gun muzzle sensor has been designed to provide corrections to the computer-generated signals responsible for fire control. This paper first summarizes some typical deformations that induce firing inaccuracies, then reviews various optical approaches to sensing the angular position of a gun and finally, discusses the design of an optical instrument recently developed in Canada for this purpose. The technique involves a laser diode transmitter/receiver mounted on a turret roof and a small mirror at the gun muzzle to reflect the laser beam. Thermal distortions induce a beam deflection which is measured by an analogue, two-axis position sensing detector whose output signals are converted into angular corrections and sent to the fire control computer. The optical design and some specific engineering problem's are thoroughly discussed.

Paper Details

Date Published: 25 November 1986
PDF: 7 pages
Proc. SPIE 0661, Optical Testing and Metrology, (25 November 1986); doi: 10.1117/12.938637
Show Author Affiliations
Raymond Carbonneau, Defence Research Establishment Valcartier (Canada)
Jacques Dubois, Defence Research Establishment Valcartier (Canada)
Geoffrey Harris, Ernst Leitz Ltd (Canada)

Published in SPIE Proceedings Vol. 0661:
Optical Testing and Metrology
Chander Prakash Grover, Editor(s)

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