Phosphor thermometer with two waveguides
US9696217B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2014 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jun 20, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K13/024
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A phosphor thermometer is disclosed. The phosphor thermometer may comprise a light source configured to emit an excitation light, and an input waveguide configured to transmit at least a portion of the excitation light from the light source to a temperature sensing end. A phosphor may be located at the temperature sensing end and it may be configured to emit a fluorescence signal upon absorption of at least a portion of the excitation light transmitted by the input waveguide. The phosphor thermometer may further comprise an output waveguide configured to transmit at least a portion of the fluorescence signal from the phosphor to a detector. The detector may determine a fluorescence decay constant from the time dependent decay of the fluorescence signal, and the fluorescence decay constant may be correlated with a temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.