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:
Jan. 08, 2019
Filed:
Oct. 17, 2014
Vega Grieshaber KG, Wolfach, DE;
Jörn Jacob, Wolfach, DE;
Bernhard Weller, Wolfach, DE;
VEGA GRIESHABER KG, Wolfach, DE;
Abstract
The invention relates to a method for determining a pressure measurement signal in a capacitive pressure measurement cell which comprises a main body and a measurement membrane that is arranged on the front of said main body. Electrodes are arranged on said main body and measurement membrane and form a measurement capacitance in a region of the measurement membrane which has a high degree of pressure sensitivity, and form a reference capacitance in a region of the measurement membrane which has a lower degree of pressure sensitivity, said measurement capacitance and reference capacitance being determined independently of one another, the pressure measurement signal being determined in a first measurement range from the measurement capacitance and the reference capacitance, in accordance with the first evaluation, and said pressure measurement signal being determined in a second measurement range from the reference capacitance in accordance with a second evaluation.