Process for automatic calibration or re-calibration of measurements of a physical variable
US5276631A · kind A · utility
31Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1991 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Mar 1, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibration process utilizes two nearly identical sensors. The characteristic output curve of the first sensor is obtained using the measuring outputs of the second sensor. In particular, the first sensor has a characteristic output curve f[x] where x is a physical variable to be measured. The second sensor has an output curve y[x].apprxeq.f[x+a]. Starting from an initially known portion of the curve f[x], outputs of the second sensor are utilized to extend the known portion of the characteristic output curve f[x] of the first sensor into ranges of the variable x where this function is not yet known.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.