Oxygen analyzer probe
US4284487A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1980 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | May 27, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R24/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is an oxygen analyzer probe for use in situ in the flue gas stream of a furnace of the type having a housing, a solid electrolytic oxygen sensor adjacent to one end of the housing and first and second noble metal leads connected to the sensor. The present invention includes a terminal block within the housing to which the noble metal leads are releasably connected. At the terminal block intermediate leads of a metal dissimilar to the noble metal lead are connected thereto. Since all connections between dissimilar metals are made at the terminal block and since all such connections are at approximately the same temperature, no unbalanced thermocouples are introduced into the electrical path from the sensor. In one embodiment, the intermediate leads are comprised of a nickel alloy and have sufficient rigidity to form the prongs of a male plug connector which prongs extend from the rear end of the housing. A female plug connector mates with the male connector for easy disassembly of the probe during maintenance thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.