Method for producing insulated electric wire, method for inspecting insulated electric wire, and apparatus for producing insulated electric wire
US10962498B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 20, 2017 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Oct 20, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B13/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for producing an insulated electric wire includes a step of preparing a conductor having a linear shape; a step of forming an insulating coating so as to cover a surface on an outer peripheral side of the conductor to obtain an insulated electric wire that includes the conductor and the insulating coating covering the conductor; and a step of measuring a first electrostatic capacity between the insulated electric wire and a first electrode disposed outside in a radial direction of the insulated electric wire so as to face an outer peripheral surface of the insulated electric wire while transporting the insulated electric wire in a longitudinal direction of the conductor, and inspecting a formation state of the insulating coating, the formation state including a formation state of a defective portion in the insulating coating, on the basis of a change in the first electrostatic capacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.