Measuring arrangement and temperature-measuring method, and sensor cable for such a measuring arrangement
US10488273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2016 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Apr 8, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B7/324
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A temperature measurement is performed using a sensor cable. The measuring arrangement has a first signal conductor, a feed unit for feeding a measurement signal into the signal conductor, and an analyzing unit which ascertains and analyzes a change in the signal transit time of the measurement signal as a result of a temperature-induced change in a first temperature-dependent dielectric constant and is configured to derive a temperature signal from the ascertained signal transit time. The first signal conductor together with a second signal conductor forms the sensor cable, and each of the two signal conductors is surrounded by an insulation which is made of a first material that has a first dielectric constant in the first signal conductor and which is made of a second material that is different from the first material and has a second dielectric constant in the case of the second signal conductor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.