Method and apparatus for measuring static and dynamic torques in

Details Method and apparatus for measuring static and dynamic torques in Method and apparatus for measuring static and dynamic torques in

1981-08-24

1983-11-15

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to torque

73779, 324209, G01L 112

Patent

active

044148569

ABSTRACT:
A method and apparatus for measuring static or dynamic torques on a test piece, in a contact free manner is possible where the test piece is made of magnetically permeable material which permeability changes due to the occurrence of torques on the test piece. These changes are sensed by the apparatus of the invention, according to the method of the invention, utilizing a four pole test probe forming a magnetic bridge.

REFERENCES:
patent: 2370845 (1945-03-01), Davis
patent: 2553833 (1951-05-01), Rifenbergh
patent: 2557393 (1951-06-01), Rifenbergh
patent: 3866462 (1975-02-01), Fraudin
O. Dahle, A.S.E.A. Journal, vol. 33, No. 3, 1960, pp. 23-32.

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