The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2018
Filed:
Dec. 10, 2014
Dr. Johannes Heidenhain Gmbh, Traunreut, DE;
Walter Huber, Traunstein, DE;
Wolfgang Holzapfel, Obing, DE;
DR. JOHANNES HEIDENHAIN GMBH, Traunreut, DE;
Abstract
In a device for measuring the vibrational amplitude of a capillary tube of a wire bonder, the capillary tube is placed between a light source and a detector system, so that the vibrational amplitude is able to be ascertained from the shading of a beam of light by the capillary tube. The beam of light emitted by the light source is split into a measuring beam of light and a reference beam of light, an edge of the capillary tube at least partially shading the measuring beam of light in the vibrating state, while the reference beam of light is not shaded. The detector system includes a measuring detector assigned to the measuring beam of light as well as at least one reference detector assigned to the reference beam of light, and the vibrational amplitude of the capillary tube is ascertainable from the interconnected output signals of the measuring detector and the reference detector.