Torque measurement device
US8707803B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2012 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Jan 9, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L25/003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring torque in a rotary encoder between the encoder body and encoder shaft. The apparatus includes a rotary stage for mounting and rotating the body of the rotary encoder, a probe arm having a first end for engaging the shaft of the rotary encoder in a stationary position, and a force sensor mourned on an adjustable assembly. The adjustable assembly enables the force sensor to be placed in contact with a second end of the probe arm, such that the plane of the force sensor is parallel to a plane defined by the vertical center plane of the probe arm passing through an axis of rotation of the shaft of the rotary encoder. By rotating the encoder body at a constant speed in clockwise and counterclockwise directions and measuring torque at regular time intervals, the range of torque, torque grittiness, and torque hysteresis may be determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.