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:
May. 06, 1986
Filed:
Dec. 01, 1982
Klaus Herzog, Oberkochen, DE;
Carl-Zeiss-Stiftung, Heidenheim/Brenz, Oberkochen, DE;
Abstract
Two methods are disclosed for eliminating the influence of guidance errors on the precision of determining the position of guided machine parts as in a coordinate-measuring machine, whereby the resulting measurement may be provided with a correction which is dependent on the guidance error. In a first method of the invention, the relevant guidance errors of the machine are determined and approximated by correction functions which are stored in the computer of the machine; the stored correction functions are used for automatic correction of errors otherwise inherent in operation of the coordinate-measuring machine. In a second method of the invention, additional measuring devices are mounted to displaceable parts of the machine, and these devices respond to changes in offset distance from reference surfaces arranged parallel to applicable coordinate guides; these measurement devices provide continuous detection of guidance errors, throughout the measurement process.