Device that measures torque of a rotating shaft

Details Device that measures torque of a rotating shaft Device that measures torque of a rotating shaft

1997-09-05

2000-10-17

Fuller, Benjamin R.

Measuring and testing

Dynamometers

Responsive to torque

G01L 300

Patent

active

061314722

ABSTRACT:
Two members for generating a magnetic field are fixed symmetrically with respect to a shaft in a first plane perpendicular to the shaft, and two members for detecting the magnetic field are fixed, symmetrically with respect to the shaft, in a second plane which is parallel and axially offset with respect to the first plane. A routing member for routing the magnetic field lines, made of ferromagnetic material, rotationally integral with the shaft and surrounding the shaft, is provided at the periphery of the members for detecting and for generating a magnetic field, on at least that portion of the shaft which lies between the first and second plane.

REFERENCES:
patent: 3191434 (1965-06-01), Brunner et al.
patent: 4448275 (1984-05-01), Kitagawa et al.
patent: 4522278 (1985-06-01), Kitagawa et al.
patent: 5490431 (1996-02-01), O'Mahony et al.
patent: 5501110 (1996-03-01), Peilloud
patent: 5646355 (1997-07-01), Fukushima et al.
patent: 5850045 (1998-12-01), Harada et al.

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