Temperature compensated torque sensor
US10345167B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2017 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Jul 12, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/221
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A temperature compensated torque sensing system and methods for using the same are provided. The system can include a sensor head in electrical communication with a controller. The sensor head can contain a torque sensor including a core, a driving coil and a sensing coil. The sensor head can also include a temperature sensor coupled to the sensor head. The torque sensor can be configured to measure torque applied to a selected portion of a target based upon magnetic flux passing through the target, while the temperature sensor can be configured to concurrently measure the target temperature. The temperature sensor can be positioned for avoiding interference with sensed magnetic flux. The controller can adjust the determined torque using the temperature measurements to compensate for changes in magnetic properties of the target due to variation in target temperature. In this manner, the accuracy of the torque measurements can be increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.