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:
Apr. 07, 2015
Filed:
May. 26, 2009
Thomas Eutebach, Hameln, DE;
Thomas Eutebach, Hameln, DE;
Lenze Automation GmbH, Aerzen, DE;
Abstract
The invention relates to a monitoring method in which two variables of angle-dependent, amplitude-modulated carrier frequency signals are emitted on orthogonal windings () of the rotational angle sensor and an evaluation is carried out by an input amplifier (V) which emits an output signal that is essentially zero when the signals of the variables are generated according to functional usage. Alternately, an interference signal is generated at one-second intervals in both windings () of the rotational angle sensor, the result of which is being evaluated and monitored by means of an input amplifier (V). An interference display signal is generated at the output of the input amplifier (V), said interference display signal being not equal to zero if no error or interruption is present in the system and equal to zero if an error or interruption is present in the system.