Conductivity sensor and method for determining the electrical conductivity of a liquid medium
US10509003B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 13, 2017 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | May 9, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R27/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A conductivity sensor for measuring the electrical conductivity of a liquid medium having at least a first coil, a current source and a control and evaluation unit, the current source being connected to the first coil. The conductivity sensor has the ability to determine a particularly large range of electric conductivity by at least a first electrode and a second electrode and at least one voltage measuring unit being provided, the voltage measuring unit being connected to the first electrode and the second electrode, the control and evaluation unit being connected to the current source and to the voltage measuring unit, and the first electrode and the second electrode being out of electrical contact with the first coil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.