Non-contacting compliant torque sensor

Details Non-contacting compliant torque sensor Non-contacting compliant torque sensor

2005-02-08

2005-02-08

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Dynamometers

Responsive to torque

C073S862336

Reexamination Certificate

active

06851324

ABSTRACT:
A variable reluctance rotational displacement sensor with: an annular sleeve; a coil coaxially aligned within the sleeve; a first ring in magnetic communication with the sleeve, coaxially aligned and configured to rotate relative to the sleeve. The first ring including a first plurality of axially directed teeth arranged about a circumference of the ring on a front portion thereof. The sensor also includes a second ring in magnetic communication with the first ring and the sleeve, the second ring coaxially aligned and configured to rotate relative to the first ring and the sleeve and including a second plurality of axially directed teeth configured substantially the same as the first plurality of axially directed teeth and oriented adjacent to the first plurality of axially directed teeth on a rear portion of the second ring. The coil generates a signal responsive to a differential displacement between the first and second rings.

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KOYO Engineering Journal English Edition No. 160E; “Development Of Custom IC for EPS Torque Sensor, Author: K. Yoshida, pp. 48-51, 2002.

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