Thermocouple linearizer circuit
US4179745A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 30, 1978 |
| Grant date | Dec 18, 1979 |
| Priority date | — |
| Expiry date | May 30, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K7/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A thermocouple linearizer circuit for use in a device for digitally displaying the temperature of a thermocouple. The circuit includes a plurality of proportional correction means, each connected to receive a non-linear electrical signal representing the temperature of a thermocouple. The correction circuits generate a correction signal proportional to the difference between a non-linear electrical signal and a predetermined reference signal. The correction signals are initiated when the non-linear signal exceeds the respective reference signal in each correction circuit. An arithmetic unit is included for adding the correction signals and the non-linear signal thereby forming a signal corresponding to a linear function of the temperature of the thermocouple.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.