Method for measuring surface temperature
US7566569B1 · kind B1 · utility
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10Claims
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Key dates
| Filing date | Aug 23, 2007 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Sep 24, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K11/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a method for measuring a surface temperature using is a fluorescent temperature sensor or optical thermometer. The sensor includes a solution of 1,3-bis(1-pyrenyl)propane within a 1-butyl-1-1-methyl pyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquid solvent. The 1,3-bis(1-pyrenyl)propane remains unassociated when in the ground state while in solution. When subjected to UV light, an excited state is produced that exists in equilibrium with an excimer. The position of the equilibrium between the two excited states is temperature dependent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.