Use of statistics to determine calibration of instruments
US8428909B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2008 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Dec 9, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F25/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates generally to statistics and calibration of instruments. More particularly, the invention encompasses the use of statistics to determine calibration of instruments. The present invention is also directed to a remote system for determination of re-calibration of instruments. The present invention also teaches the use of multiple statistical tests to determine need for calibration. The invention also includes a novel use of tests, such as, the F-Test, the Z-Test, to determine need for calibration. Furthermore, this invention relates to an alternate instrument scheme consisting of the use of redundant sensors and statistical analysis to avoid unnecessary calibrations and to detect sensors that are starting to drift before they go out of calibration. With this invention reduced calibration cost, increased data integrity, and reduced off-spec uncertainty is achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.