Wireless monitoring of temperature
US6208253A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2000 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Apr 12, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01K7/38
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Temperature sensing through observable, temperature-dependent effects on an interrogating magnetic field is facilitating by a sensing module having, first, a signal element that interacts with the interrogation field to produce a remotely readable magnetic response; and disposed proximate to the signal element, a temperature-sensitive component. This latter component may include a modulation element having a magnetic permeability varying with temperature in the operating range and/or a bias element comprising a magnet having a Curie temperature in the operating range. The temperature-sensitive component interacts magnetically with the signal element such that the remotely readable magnetic response is indicative of a temperature in the operating range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.