Measuring and testing – Dynamometers – Responsive to torque
Patent
1989-10-05
1991-09-10
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to torque
G01L 310
Patent
active
050463721
ABSTRACT:
A torque sensor which includes two cylinders fixed to two shafts connected with each other through a torsion bar. The magnetic coupling state of the two cylinders is made variable corresponding to relative rotations of the two shafts. The magnetic coupling state thereof is detected by a coil impedance, which is indicative of a torque acting on the shafts. The two cylinders form at the opposite end edges thereof teeth provided with cutouts disposed circumferentially of the cylinders and are opposite to each other at portions of about half a width of each tooth. The two shafts are regulated by rotation so as to not put the teeth of the cylinders completely opposite or non-opposite to each other.
REFERENCES:
patent: 2470626 (1949-05-01), Langer et al.
patent: 2498282 (1950-02-01), Langer
patent: 4712432 (1987-12-01), Hochstein et al.
patent: 4907460 (1990-03-01), Taniguchi et al.
Daido Toshihiko
Kuramoto Isao
Nagano Hidenobu
Nohara Makoto
Taniguchi Manabu
Koyo Seiko Co. Ltd.
Ruehl Charles A.
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