Patent · US Active

Tactile microprobe arm fastened to freestanding end of an optical fiber

US9360305B2 · kind B2 · utility

2Cited by

3References

5Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ulrich Lessing · Stuttgart, DE
Pawel Drabarek · Tiefenbronn, DE
Gerhard Ortner · Jakarta, ID

Key dates

Filing date	Jul 10, 2012
Grant date	Jun 7, 2016
Priority date	—
Expiry date	Nov 22, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01B11/026
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device for the tactile determination of a surface shape of a measuring object includes a micro probe arm having a stylus tip, the micro probe arm being fastened on an optical fiber having a fiber end, which is mounted in a probe housing, a reference mirror is provided in the probe housing, and an optical measuring device is provided for determining the position of the fiber end in relation to the reference mirror. The contactless interferometric determination of the distance between the fiber end of the optical fiber and the reference mirror attached in the probe housing allows precise determination of the surface shape of the measuring object.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.