US 12,228,398 B2
Non-contacting angular motion measuring device
Kenneth D. Price, Long Beach, CA (US); and Felix T. Sasso, Los Angeles, CA (US)
Assigned to THE AEROSPACE CORPORATION, El Segundo, CA (US)
Filed by The Aerospace Corporation, El Segundo, CA (US)
Filed on Mar. 24, 2022, as Appl. No. 17/703,617.
Prior Publication US 2023/0304786 A1, Sep. 28, 2023
Int. Cl. G01B 7/30 (2006.01); G01D 5/14 (2006.01)
CPC G01B 7/30 (2013.01) [G01D 5/145 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A non-contact angular motion measuring device, comprising:
a mirror configured to move or rotate about a pivot axis;
a curved target, circularly symmetric around an axis normal to the mirror; and
at least one pair of sensors configured to emit fields towards the curved target rather than the mirror and remain fixed in position with respect to the curved target that is moving from side to side, the at least one pair of sensors and curved target being on a same plane, wherein
a surface of the curved target facing each of the at least one pair of sensors is spherical.