Non-Adjustable Pointer-Tracker Gimbal Used For Directed Infrared Countermeasures Systems

a pointer-tracker gimbal and infrared countermeasure technology, applied in the direction of direction/deviation determining electromagnetic systems, instruments, angle measurement, etc., can solve the problem of not being able to easily compensate for positional errors of mirrors, not being able to adjust for all pointing directions, and complicating the situation of locking the adjustment mechanism
US20160187126A1Inactive Publication Date: 2016-06-30BAE SYST INFORMATION & ELECTRONICS SYST INTEGRATION INC
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
BAE SYST INFORMATION & ELECTRONICS SYST INTEGRATION INC
Publication Date
2016-06-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

In a directed infrared countermeasure system, to assure parallelism between the line-of-sight to a target and the output beam, the input and output mirrors are fixedly attached to a uni-construction arm mounted to a rotatable azimuth platter to which internal mirrors are also fixedly attached. A system is provided for zeroing out alignment errors by developing an aim-point map for the gimbal that records initial alignment errors induced by manufacturing tolerances and uses the aim-point map error values to correct the output mirror orientation. The system also corrects for alignment errors induced by thermal gradients.
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Description

RELATED APPLICATIONS

[0001] This application is a divisional of U.S. patent application Ser. No. 13 / 506,901 filed May 23, 2012 and is a continuation of co-pending U.S. patent application Ser. No. 13 / 373,775 filed Nov. 30, 2011 which is a continuation of U.S. patent application Ser. No. 12 / 499,584 filed Jul. 8, 2009. This application claims the benefit under 35 USC §119(e) from U.S. Application Ser. No. 61 / 134,277 filed Jul. 8, 2008, the contents of which are incorporated herein by reference.FIELD OF THE INVENTION

[0002] This invention relates to directed infrared countermeasures and more particularly to a non-adjustable pointer-tracker gimbal for use in such systems.BACKGROUND OF THE INVENTION

[0003] In directed infrared countermeasures (DIRCM) systems there has always been a problem of making the line-of-sight (LOS) to the target and the laser beam that is emitted from the DIRCM head coincident or parallel. While there have been many efforts to reduce the amount of parallax between the t...

Claims

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