Device and method for evaluating a temperature
US8430562B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2011 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Nov 8, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K7/346
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for evaluating temperature is disclosed. The method includes setting a configuration of a configurable delay line out of multiple possible configurations, and delaying a first input signal by a temperature sensitive delay line, delaying a second input signal by the configurable delay line. The configurable delay line is less sensitive to temperature than the temperature sensitive delay line. The method also includes detecting, by a phase detector, a delay difference between a delay introduced by the temperature sensitive delay line and a delay introduced by the configurable delay line, repeating the setting, delaying of the first input signal, delaying of the second input signal and detecting, until the delay difference is below a threshold, and evaluating the temperature of the temperature sensitive delay line in response to a configuration of the configurable delay line that results in the delay difference that is below the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.