Electro-chemical sensor construction
US3960692A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1974 |
| Grant date | Jun 1, 1976 |
| Priority date | — |
| Expiry date | Jul 29, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4078
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
To provide for mechanical isolation between the connection to the interior of a solid electrolyte material, such as zirconium dioxide, used in an oxygen ion concentration cell, for example to sense the composition of exhaust gases from an internal combustion engines, an electrical connection element which may be a metal cap, a cup-shaped element, or a resilient electrically conductive mass such as granular material, graphite, copper powder, or the like, is conductively arranged with respect to at least one of the conductor strips or paths connected to the solid electrolyte body, and an axially extending spiral compression spring is interposed between an electrical contact terminal and the connection element to provide for resilient, yielding connection between the terminal and the conductive paths, and avoid placing of stresses on the solid electrolyte body during manufacture thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.