Method and device for the hysteresis correction of measured values for sensors with extensometers
US6928853B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 2001 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Jan 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G3/1416
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A transducer including a deformation body with a strain gage produces hysteresis-affected measured values based on the strain of the deformation body. Each measured value is to be corrected by the hysteresis error. For this purpose, a hysteresis model is formed from a recorded loading characteristic curve and the theory of the dipole density of the oriented elementary dipoles in the interior of the deformation body. With the aid of the hysteresis model, and the determined hysteresis-affected measured values, and in connection with the acquired loading history, a correction value is derived and used to correct the hysteresis error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.