Fast response thermometer
US4085617A · kind A · utility
3Cited by
6References
3Claims
0Family size
Inventor
Key dates
| Filing date | Apr 5, 1976 |
| Grant date | Apr 25, 1978 |
| Priority date | — |
| Expiry date | Apr 5, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K7/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This invention relates to a thermometer and more particularly to a fast response clinical thermometer. The active element is in the form of a thin sleeve which is in direct contact with the body tissue or other item to be measured. The large ratio of surface to volume of the active element permits it to reach temperature equilibrium rapidly. Temperature dependent changes in the sleeve material influence a coil which is inductively coupled to the sleeve. The coil in turn controls an oscillator frequency which can be converted to a digital display of the measured temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.