Multi-wire mineral insulated cable thermocouple reference junction
US4624582A · kind A · utility
Inventors
Key dates
| Filing date | Feb 29, 1984 |
| Grant date | Nov 25, 1986 |
| Priority date | — |
| Expiry date | Feb 29, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K7/13
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for making a transition from leads (12-26) of a temperature measuring thermocouple to extension wires (44-58) within a hermetically sealed cable sheath (60) of small diameter. The interior of the cable sheath (60) is shielded from electromagnetic radiation by an electrically conductive liner (62). A thermally conductive, electrically insulating material (66) surrounds the intermediate junctions (28-42). The temperature of the intermediate junctions (28-42) is measured (64) providing a signal to compensate the voltage generated by the temperature measuring thermocouples due to the thermoelectric effect of the intermediate junctions (28-42).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.