Combination sensor
US10641593B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2017 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | May 31, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/952
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An assembly for automatically detecting contactlessly elongate objects (W). The assembly comprises an inductive measuring system (E) and a first optical measuring system (D) for the object (W) within a housing (2). The inductive measuring system (E) is an eddy current sensor for determining an electromagnetic characteristic of the object (W) and has half coils (E1a, E1b) which wind around the object (W) and forms an inductive cylindrical measurement volume (Ev). The half coils (E1a, E1b), together with a capacitor (E2), form a parallel oscillating circuit (E6), which is connected to an electronic evaluating circuit (E5). The first optical measuring system (D) determines the outside diameter (Wdo) of the object (W) and an optical disk-shaped measurement volume (DCPv) is formed between the two half coils (E1a, E1b). Optionally, the assembly, by a second optical measuring system (C), determines the color and the position by a third virtual measuring system (P).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.