Torque measuring device for rotating body

Details Torque measuring device for rotating body Torque measuring device for rotating body

2007-09-18

2007-09-18

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

C073S862321, C073S862324, C073S862193

Reexamination Certificate

active

11128819

ABSTRACT:
A torque measuring device for a rotating body is provided, which includes: a stationary section; a rotary section; a rotary transformer composed of a primary coil disposed at the stationary section, and a secondary coil disposed at the rotary section, wherein an electric power is transmitted from the stationary section to the rotary section by electromagnetic induction, a torque generated at a rotating body is detected at the rotary section by means of the electric power transmitted, and wherein a detection result is transmitted from the rotary section to the stationary section. In the torque measuring device, a capacitor is connected at the side of the secondary coil of the rotary transformer, and a series resonant circuit is formed by the capacitor in combination with a leakage inductance of the rotary transformer.

REFERENCES:
patent: 2762971 (1956-09-01), Parker
patent: 5706184 (1998-01-01), Mizuta et al.
patent: 6472656 (2002-10-01), Arai
patent: 1 170 577 (2002-01-01), None
patent: 1 170 577 (2002-01-01), None
patent: 2002-022566 (2002-01-01), None

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