Contactless electrical measurement device including a magnetizable plastic coil body for a current-carrying coil
US5760579A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 28, 1993 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | May 28, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F5/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The measurement device for generating a measurement signal from an object without physical contact with the object includes a magnetizable plastic coil body and at least one coil arranged on the coil body and through which a current flows during generation of the measurement signal. The coil body can be part of a one-piece injection molded plastic part consisting of a magnetizable plastic material. In a preferred embodiment the one-piece injection molded magnetizable plastic part consists of ring-like mounting element and a sleeve-like extension with a exterior circumferential groove for the coil or coils which acts as the magnetizable plastic coil body. The magnetizable plastic substance can be a polyamide plastic substance filled with a weakly magnetizable material such as an iron-cobalt powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.