Temperature sensor and an infrared detector including such a sensor
US9476772B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2012 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Aug 27, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A temperature sensor for use in an infrared detector the temperature sensor comprising: a first resistor associated with a first thermal path having a first thermal conductivity between the first resistor and a substrate and a first temperature coefficient of resistance; a second resistor associated with a second thermal path having a second thermal conductivity between the second resistor and the substrate and a second temperature coefficient of resistance, and a measurement circuit responsive to changes in the resistance of the first and second resistors to estimate changes in temperature, and wherein at least one of (a) the first and second thermal conductivities are different or (b) the first and second temperature coefficients of resistance are different.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.