Encoded scale body with encoding material on support band

US8547088B2 · kind B2 · utility

Assignee

• BALLUFF GMBH · DE

Inventors

• Christoph Bauch · Stuttgart, DE
• Thomas Burkhardt · Cary, US
• Roland Holder · Owen, DE
• Torsten Beutler · Esslingen am Neckar, DE
• Karl Blessing · Jeffery Road, DE
• Bernhard Hahn · Wernau, DE

Key dates

• Filing date: May 22, 2009
• Grant date: Oct 1, 2013
• Expiry date: Jun 1, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G01D2205/80
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Encoded scale bodies for position/displacement measuring systems and position/displacement measurement systems including scale bodies are disclosed. An encoded scale body includes a support band and at least one encoding layer made of encoding material. The encoding layer is arranged on the support band. The encoded scale body further includes a cover band which covers the encoding material towards an outside space. The cover band is formed by the support band. The support band/cover band is elastically flexible. The support band, which is the mechanical holder for the encoding material, may serve to mechanically stabilize the encoded scale body. The cover band covers the encoding material and may protect the encoding layer from external effects such as, in particular, mechanical forces. The flexible support band/cover band may permit the encoded scale body to be used as band material, and for example, a roll material.