Sensor elements and assemblies, cutting tools comprising same and methods of using same
US12044118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 2020 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Nov 3, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/041
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor element for a cutting tool has a hard portion having a first sensing surface, first and second electrodes, and first and second sets of thermocouple wires, and an electrically insulating portion. The second electrode has a second sensing surface, The hard portion comprises hard and/or super-hard material and the first and second electrodes comprise electrically conductive hard and/or super-hard material, the hard portion isolating the first sensing surface from the second sensing surface. The second electrode is attached to or forms part of an electrically conductive region of the hard portion or a region attached thereto. Electric current flows between the first and second electrodes through external material when the sensing surfaces contact the material in response to the cutting tool engaging the material. The first and second electrodes are operable to indicate any one or more of a temperature of the first and second electrodes, and conductivity between the electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.