Ionic liquid temperature sensor
US6749336B2 · kind B2 · utility
5Cited by
7References
31Claims
0Family size
Inventors
Key dates
| Filing date | Jan 2, 2003 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Jan 2, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K5/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A temperature sensor having a capillary tube or stem, sealed at both ends, with a thin bore defined therein is applied to the measurement of temperatures having a range of about −100° to +400° Centigrade. A bulb comprising a liquid reservoir, is provided at one end of the capillary tube, in liquid communication with the bore, and is generally filled with an ionic thermometric liquid. In the operation of the temperature sensor, temperature is measured by the height of the liquid in the bore.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.