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. 30, 2000
Filed:
Mar. 15, 1999
Hansjorg Meerpohl, Berlin, DE;
Dietmar Pech, Berlin, DE;
BSH Bosch und Siemens Hausgeraete GmbH, Munich, DE;
Abstract
The electrical conductivity of laundry in a laundry drum is measured and the moisture content is determined from the measured quantity. A polarization voltage, which corrupts the measurement result, is formed at the electrodes. In order to compensate for this disturbing influence, as well as for other material and aging effects, the conductivity measurement is briefly interrupted and the polarization voltage which is present across the electrodes and has formed during the conductivity measurement is measured. The measured error voltage is used to compensate the laundry voltage measured during the previous conductivity measurement. This improves the determination of the conductivity, and thus of the moisture content, considerably. The method is particularly suitable for a microcontroller.