Load measurement method and device
US7971490B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2006 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Sep 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for axial load measurement on a mechanical control device (10) having rotating shaft (30) maybe used to derive a torque measurement. A mechanical control device (10) may comprise a valve actuator for fluid flow control devices. The load measurement device may include a beam (65a) operatively connected to a rotatable shaft and configured to deform under axial displacement of the shaft. A sensor (80) maybe coupled with the at least one beam (65a) and configured to produce an output signal related to the axial displacement of the shaft. The beam may be retained between two bearings (74) of the rotatable shaft at a first end, and fixed to the housing (120) of the mechanical control device at a second end. The first end of the beam (65a) may displace axially with the rotatable shaft. The beam (65a) may comprise a discrete segment of a uniform width and thickness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.