Hybrid thermistor temperature sensor
US5519374A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1994 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Aug 26, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C7/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A hybrid thermistor temperature sensor includes a two-pole network of temperature-dependent resistors being in thermal and electrical contact with each other. The two-pole network has at least one temperature-dependent resistor with a positive temperature coefficient as a cold conductor, at least one temperature-dependent resistor with a negative temperature coefficient as a hot conductor, a temperature/resistance curve with a constant behavior or plateau in a predetermined temperature region, and at least one electrode electrically coupling at least two of the temperature-dependent resistors to each other. The at least one electrode is produced from a material ensuring a contact between the temperature-dependent resistors that breaks down a barrier layer and forms a diffusion barrier to a mutual diffusion of ingredients of each respective one of the contacting temperature-dependent resistors into the other of the temperature-dependent resistors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.