Device for stabilizing the axis of a variable field guidance sys

Details Device for stabilizing the axis of a variable field guidance sys Device for stabilizing the axis of a variable field guidance sys

1986-12-09

1988-05-03

Buczinski, Stephen C.

Optics: measuring and testing

Angle measuring or angular axial alignment

With photodetection remote from measured angle

356150, 356153, G01B 1126

Patent

active

047416181

ABSTRACT:
Device for stabilizing the axis (11) of a variable field guidance system with respect to the axis (2) of a sighting device (1) in which the sight axis (2) is adjusted until it is perpendicular to a plane-parallel plate (3) forming an optical reference element. An angular movement of the guidance axis (11) is registered by an error measuring device having an aperture (13) which is arranged symmetrically to the optical center (9) of the guidance system with respect to a further plane-parallel plate (15) and a detector (14) which receives the flux from the guidance beam transmitter after successive reflections from the plane-parallel plates (3 and 15). The detector (14) is connected to the input of an error measuring receiver (16) which supplies an error signal which is applied to a correction element (17) in the guidance beam path.

REFERENCES:
patent: 3799674 (1974-03-01), Guillet et al.
patent: 4326799 (1982-04-01), Keene et al.
patent: 4326800 (1982-04-01), Fitts
patent: 4385834 (1983-05-01), Maxwell
patent: 4432640 (1984-02-01), Grage et al.
patent: 4576480 (1986-03-01), Travis
patent: 4662727 (1987-05-01), Griffen

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