Scanning unit

US6566866B2 · kind B2 · utility

Assignee

• DR. JOHANNES HEIDENHAIN GMBH · DE

Inventors

• Lutz Rissing · Seebruck, DE
• Michael Schwabe · Rimsting, DE
• Dieter Spark · Trostberg, DE

Key dates

• Filing date: Apr 13, 2001
• Grant date: May 20, 2003
• Expiry date: May 21, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G01D11/245
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A scanning unit for a magnetic position measuring device is described. The scanning unit includes a carrier body having at least one recess and at least one bore hole in communication with the recess. A detector unit, having one or more detector elements and an electrical connecting lead, is arranged in the area of the recess. The electric connecting lead is disposed through the bore hole. A covering element, covering the recess and protecting the elements arranged therein against mechanical damage, is arranged over the recess. A filling material is provided in the remaining free areas of the recess under the covering element.