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. 06, 2002
Filed:
Aug. 20, 1999
Werner Bansemir, Mannheim, DE;
Gerhard Jung, Bobenheim-Roxheim, DE;
Other;
Abstract
The invention relates to a sensor and evaluation system for capturing data at a measuring station ( ), in particular for use in double sensors for determining end positions and limit values. The individual sensors ( ′) are operated as sensor pairs ( ″) by a largely shared control circuit consisting of two connecting lines ( ) with an electric current or voltage of alternate polarity. A state of a sensor ( ′) is transmitted on the corresponding half-wave of the sensor current and evaluated by a switching amplifier ( ) in relation to polarity and amplitude. Said sensor and evaluation system reduces the number of connecting lines required. In addition, interference from neighboring sensors is largely excluded, so that sensors can be mounted more closely together in a system. Said sensor and evaluation system is especially suited for equipment required to comply with the DIN 19234 (NAMUR) standard.