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:
Feb. 10, 2004
Filed:
Apr. 18, 2002
Augustin Braun, Karlsdorf-Neuthard, DE;
Acam-messelectronic GmbH, Stutensee-Blankenloch, DE;
Abstract
In order in a method for measuring the resistance across discharge times of a capacitor to eliminate the interfering influence of the resistance values of electronic switches, the invention provides for a capacitor to be repeatedly charged and discharged and the charging or discharging time is measured by means of at least one resistor (R , R , R ) and at least one first switch (S , S or S ) connected in series therewith, at least one second switch (S , S or S ) connected in series with the resistor (R , R or R ) and juxtaposed, parallel-connected switches (S S or S S or S S ) connected in series with the resistor (R , R or R ). For performing the method, the invention provides a circuit arrangement for resistance measurement having at least one capacitor (C) and at least two resistors (R , R , R ) connected in parallel thereto and with the resistors (R , R , R ) is in each case associated in series a switch (S S or S ) and with the first switch (S S or S ) is connected in parallel at least one second switch (S , S or S ).