Patent · US Active

Device for inspecting workpiece surfaces and strip materials

US10056071B2 · kind B2 · utility

0Cited by

6References

5Claims

0Family size

Assignee

ZS-Handling GmbH · DE

Inventors

Michael Schilp · Garching bei München, DE
Josef Zimmermann · Regensburg, DE
Adolf Zitzmann · Regensburg, DE

Key dates

Filing date	Jul 22, 2014
Grant date	Aug 21, 2018
Priority date	—
Expiry date	Aug 19, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG01N27/72
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device for inspecting a workpiece surface includes a sensor, a sonotrode having a sound-emitting surface and rigidly connected to the sensor to form a sensor unit, and a movable positioning device coupled with the sensor unit to position the sensor unit in a position opposite to the workpiece surface. The positioning device includes a force-applying member to urge the sensor unit in a direction of the workpiece or strip material surface by applying a predefined urging force or using gravity as the urging force. The sound-emitting surface of the sonotrode generates ultrasonic oscillations to produce an ultrasonic levitation force field in the presence of a gaseous medium between the workpiece surface and the sound-emitting surface to thereby generate a counterforce in opposition to the urging force so that the sensor unit is held hovering at a distance to the workpiece or strip surface.

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