Measuring and testing – Dynamometers – Responsive to torque
Patent
1994-09-09
1995-08-08
Chilcot, Jr., Richard E.
Measuring and testing
Dynamometers
Responsive to torque
73862195, G01L 300
Patent
active
054388821
ABSTRACT:
A non-contact system and method for measuring torsional wave propagation along a rotating shaft as well as static angular deflection due to a constant applied torque. The relative twist angle between two cross-sectional portions of the rotating shaft separated by a predetermined distance is detected over time and then the axial variation of torque along the rotating shaft is determined as a function of relative twist angle. Detection is carried out electro-optically using a pair of photodetectors and bands of reflective marks adhered on the circumferential surfaces of the two cross-sectional portions. Axial variation of torque is determined by determining variations in the phase difference between pulse trains output by the photodetectors.
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Karim-Panahi Khosrow
Terhune James H.
Zimmerman Paul J.
Biegel R.
Chilcot Jr. Richard E.
General Electric Company
McGinness James E.
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