Temperature sensor probe
US5720556A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1996 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Jul 29, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K1/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A thermistor probe with improved heat transfer between the housing and the thermistor element is provided which includes a housing which is adapted to be disposed in an environment with a temperature to be measured by the probe. Within the housing is a thermally conductive insert which corresponds to a cavity within the housing. The insert has an aperture with a generally rectangular cross section to receive a thermistor disk. The thermistor disk has a positive or negative temperature coefficient of electrical resistance. The generally rectangular aperture is constructed such that the thermistor disk can be inserted into the aperture in a close fitting relationship with the aperture. While the entire outer surface of the thermistor disk may not be in contact with the walls of the aperture in the insert, the heat transfer between the housing and the thermistor disk (through the insert) is greatly improved over thermistor probes of the past.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.