Torque transducer

Details Torque transducer Torque transducer

1989-12-26

1990-12-18

Ruehl, Charles A.

Measuring and testing

Instrument proving or calibrating

7386208, G01L 2500

Patent

active

049777750

ABSTRACT:
The Torque Transducer structure comprising a lower base plate, and an elongate torque member projecting vertically upwardly from the plate. The member has rigid upper and lower end portions and a central deflection portion that is rigid through a first radial plane through the structure and is flexible through a second radial plane of the structure which is at right angle to the first radial plane. The central portion of the member carries strain gauges and is torsionally deflected by torsional forces directed onto the upper end portion of the member. The member is subject to adverse lateral deflection through the second radial plane of the structure by lateral forces directed onto its upper end portion. The lower end portion of the member is coupled with the plate against rotation and for free pivotal movement relative thereto through said second radial plane of the structure. The structure includes a stop structure that is in fixed position relative to the plate and that engages the upper end portion of the member, stops lateral displacement thereof and directs lateral forces directed through and from the upper end portion of the member to the plate so that the central portion of the member is not subjected thereto and deflected thereby.

REFERENCES:
patent: 3153930 (1964-10-01), Jackson
patent: 3217533 (1965-11-01), Able
patent: 4186596 (1980-02-01), Bohringer et al.
patent: 4562722 (1986-01-01), Schuele et al.
patent: 4643030 (1987-02-01), Becker et al.
"Transducer Design": Torque Sensors (Publisher and date unknown).

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