Immersion-type temperature measuring apparatus using thermocouple
US5360269A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1993 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | Nov 12, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K1/105
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An immersion-type temperature measuring apparatus using a thermocouple for measuring temperature of a melt, which comprises: a replaceable cartridge-type temperature sensor (11) for detecting a thermoelectromotive force corresponding to a temperature of a melt, the temperature sensor (11) comprising a thermocouple (13), a protecting tube (12) for protecting the thermocouple (13) from the melt, and a connector (16); a holder for releasably supporting the temperature sensor (11); a measuring instrument (28) for processing the thermoelectromotive force to determine the temperature of the melt; and an extension lead wire (25) for connecting the temperature sensor (11) with the measuring instrument (28). At least part of the above-mentioned protecting tube (12) is formed of a molybdenum-zirconia refractory consisting essentially of from 20 to 95 wt. % molybdenum and from 5 to 80 wt. % zirconia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.