G - Physics – 03 – H
Patent
G - Physics
03
H
73/178, 88/0.14
G03H 1/30 (2006.01) G01B 9/021 (2006.01)
Patent
CA 1263548
ABSTRACT OF THE DISCLOSURE Disclosed is a holographic method for determining rotational effects upon either gear of gears (1, 2) of a gear set having respective mutually orthogonal rotational axis (C1, C2). Particularly, a holographic recording medium or element 12 is secured to gear (1) so that it rotates in synchronization therewith about axis (C1). Gear (2) is illuminated by a pulsed collimated light beam (L) emitted from a source 14) such as a laser. Beam (L) is reflected from gear (2) as object beam (O) substantially parallel to axis C2 and means such as a semi-reflective mirror 16 having a slit (18) is provided for directing a reference beam (R) and object beam (O) towards element (12). Development of element (12) after exposing it to beams (R and O) at two different rotational conditions provides interference lines (f1, f2) enabling a viewer of the holographic image of gear 2 to determine the effect of rotation thereupon.
505046
Bartolomeo Mark E.
Corporation Eaton
Parks Thompson & Macgregor
LandOfFree
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