Resistance temperature sensor
US4139833A · kind A · utility
34Cited by
3References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1976 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Nov 22, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49099
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A polished ceramic substrate is provided with an insulation layer of silicon monoxide (SiO), over which a nickel metal thin-film is laid down in a spiral or serpentine pattern, taking up a desirably small area, but at the same time giving a high electrical resistance. Finally, a cover or protective layer of silicon monoxide is then deposited over the resistor, serving to protect it from the possibility of outside contamination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.