ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,708, issued on Oct. 14, was assigned to IFM Electronic GmbH (Essen, Germany).
"Method for operating a pressure measuring cell of a capacitive pressure sensor" was invented by Simon Buchele (Eriskirch, Germany) and Peter Kimbel (Tettnang, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for operating a pressure measuring cell of a capacitive pressure sensor. The pressure measuring cell includes a pressure-dependent measuring capacitor and a reference capacitor, with an internal alternating square wave excitation voltage applied. The pressure measured value is obtained from capacitance values of the measuring capacitor and the reference...