Optical torque detecting apparatus

Details Optical torque detecting apparatus Optical torque detecting apparatus

G - Physics

01

L

73/53

G01L 3/12 (2006.01) G01D 5/38 (2006.01)

Patent

CA 1231254

ABSTRACT OF THE DISCLOSURE An apparatus for detecting torque in a shaft comprises a pair of opposing rotary members, each bearing an optical grid and mounted on the shaft with a predetermined spacing between their points of attachment so that a changing Moire fringe pat- tern is formed as the angular relationship of the two rotary members is changed owing to torsion in the shaft and detecting means for detecting a shift in the Moire fringe pattern, whereby the torque in the shaft can be determined.

481680

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