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:
Nov. 10, 2015
Filed:
Dec. 11, 2012
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Craig Andrew Weldon, Chatham, CA;
Raymond Rasokas, Thamesville, CA;
Continental Automotive Systems, Inc., Auburn Hills, MI (US);
Abstract
A method of measuring flux density and run out to accommodate rotors of different diameters, evaluate intrinsic properties of magnet material and the magnetization process. Circular run out measurement capability is also used to evaluate bearing journal 'ovality.' The method includes the use of a scan tool, or a DLA Rotor Flux Density Scan Fixture, which evaluates the electromagnetic field strength (gauss), combined with surface run out and presents the data in a scalable pictorial format. The scan tool includes a probe which measures a magnetic field strength and circular run out of the perimeter of the magnet. Simultaneously, a non-contact measurement sensor is used to measure the rotor surface for subtle variations. The resulting sine wave gauss data and the surface dimension data are manipulated into a scalable 'radar' plot. The radar plot correlates magnetic pole field strength and surface circular run out variation to the index position.