Abstract: The present invention relates to a measuring arrangement for determining a pressure of a fluid comprising a pressure measuring cell, which has a measuring chamber, which is formed by means of a base body and a membrane, which is arranged on the front side of the base body so as to be spaced apart circumferentially, wherein the membrane can be deformed by means of the pressure of the fluid, at least one membrane electrode arranged on the membrane, and at least one base body electrode arranged opposite thereto on the base body, wherein a distance between the membrane electrode and the base body electrode changes due to a pressure change of the fluid acting on the membrane, so that a change in capacitance can be detected, characterized in that the measuring arrangement has a measuring device for determining a current flowing between the at least one membrane electrode and the at least one base body electrode.

Abstract: The invention relates to various means for implementing a method for compensating measured values in capacitive pressure measuring cells using a measuring capacity and at least one reference capacity, comprising the following steps: determination of a pressure-induced capacitance change of the reference capacitance as a function of a pressure-induced capacitance change of the measuring capacitance, determination of a thermal shock-induced capacitance change of the reference capacitance as a function of a thermal shock-induced capacitance change of the measuring capacitance, measurement of the measuring capacitance and of the at least one reference capacitance, determination of the thermal shock-induced capacitance change of the measuring capacitance from a combination of the above dependencies, compensation of the measured measuring capacitance by the thermal shock induced capacitance change of the measuring capacitance, and determination and output of the pressure-induced capacitance change or a quantity

Abstract: The invention relates to various means for implementing a method for compensating measured values in capacitive pressure measuring cells using a measuring capacity and at least one reference capacity, comprising the following steps: determination of a pressure-induced capacitance change of the reference capacitance as a function of a pressure-induced capacitance change of the measuring capacitance, determination of a thermal shock-induced capacitance change of the reference capacitance as a function of a thermal shock-induced capacitance change of the measuring capacitance, measurement of the measuring capacitance and of the at least one reference capacitance, determination of the thermal shock-induced capacitance change of the measuring capacitance from a combination of the above dependencies, compensation of the measured measuring capacitance by the thermal shock induced capacitance change of the measuring capacitance, and determination and output of the pressure-induced capacitance change or a quantity

Abstract: The invention relates to various means for implementing a method for compensating measured values in capacitive pressure measuring cells using a measuring capacity and at least one reference capacity, comprising the following steps: determination of a pressure-induced capacitance change of the reference capacitance as a function of a pressure-induced capacitance change of the measuring capacitance, determination of a thermal shock-induced capacitance change of the reference capacitance as a function of a thermal shock-induced capacitance change of the measuring capacitance, measurement of the measuring capacitance and of the at least one reference capacitance, determination of the thermal shock-induced capacitance change of the measuring capacitance from a combination of the above dependencies, compensation of the measured measuring capacitance by the thermal shock induced capacitance change of the measuring capacitance, and determination and output of the pressure-induced capacitance change or a quantity

Abstract: The invention relates to a method for compensating measured values in capacitive pressure measuring cells using a measuring capacity and at least one reference capacity, comprising the following steps: determination of a pressure-induced capacitance change of the reference capacitance as a function of a pressure-induced capacitance change of the measuring capacitance, determination of a thermal shock-induced capacitance change of the reference capacitance as a function of a thermal shock-induced capacitance change of the measuring capacitance, measurement of the measuring capacitance and of the at least one reference capacitance, determination of the thermal shock-induced capacitance change of the measuring capacitance from a combination of the above dependencies, compensation of the measured measuring capacitance by the thermal shock induced capacitance change of the measuring capacitance, and determination and output of the pressure-induced capacitance change or a quantity derived therefrom.

Abstract: The invention is a method for determining an output value, which is equivalent to a pressure or a value proportional to the pressure, comprising a relative pressure sensor with at least one measured capacity formed between a basic body and a measuring membrane and at least one reference capacity formed between the basic body and the measuring membrane, with the determination of the output value comprising at least the following steps: (1) determining the measured capacity, (2) determining the reference capacity, (3) comparing a value of a first function FZ of the reference capacity to the measured capacity and (4) issuing A=FQ(CM,CR) for CM=FZ(CR) A=FCR(CR) for CM>FZ(CR) A=FCM(CM) for CM<FZ(CR) as the output value.

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.

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.

Abstract: The invention is a method for determining an output value, which is equivalent to a pressure or a value proportional to the pressure, comprising a relative pressure sensor with at least one measured capacity formed between a basic body and a measuring membrane and at least one reference capacity formed between the basic body and the measuring membrane, with the determination of the output value comprising at least the following steps: (1) determining the measured capacity, (2) determining the reference capacity, (3) comparing a value of a first function FZ of the reference capacity to the measured capacity and (4) issuing A=FQ(CM,CR) for CM=FZ(CR) A=FCR(CR) for CM>FZ(CR) A=FCM(CM) for CM<FZ(CR) as the output value.