Abstract: A separating membrane includes: a planar edge region for the joining of the separating membrane to a diaphragm seal body; a working region offset in an axial direction relative to the edge region; and a transition region between the edge region and the working region, wherein the transition region extends over a radial region of not more than one quarter of an outer radius of the transition region, wherein the working region has a substantially planar center and an embossed pattern or undulation pattern between the center and an outer edge of the working region, wherein from the rest position to a point of deflection with a dimensionless pressure equivalent, the separating membrane has a characteristic curve in which, for a coefficient of determination R2 of a linear regression of the characteristic curve, the following applies: (1?R2)<1%.

Abstract: A method for diagnosing a differential pressure line of a differential pressure measurement arrangement includes capturing a first set number of differential pressure values, which represent a difference between a first media pressure and a second media pressure within a process, and checking whether the differential pressure measurement arrangement and/or the process are in a state that allows a diagnosis of the differential pressure line. Where it is determined that the differential pressure measurement arrangement and/or the process are not in a state that allows a diagnosis of the differential pressure line, the differential pressure values are captured anew such that the previously captured differential pressure values are deleted or overwritten. Otherwise, a diagnostic function to determine whether a differential pressure line is blocked is carried out.

Abstract: A differential pressure measuring arrangement, comprising: a differential pressure measuring transducer; a first differential pressure line supplying the differential pressure measuring transducer with the first media pressure; a second differential pressure line supplying the differential pressure measuring transducer with the second media pressure; a temperature sensor; and a processing and evaluation unit for processing the differential pressure measurement signal and the temperature signal; wherein the processing and evaluation unit is adapted to determine a significant correlation between a change of the temperature signal and the differential pressure signal and to consider such as indication of a plugged differential pressure line and is further adapted to test whether a considered indication of a plugged differential pressure line can be verified based on additional process data, which preferably were not registered by the differential pressure measuring transducer.

Abstract: A pressure sensor for determining a pressure measurement variable includes a housing, a pressure sensor element arranged in the housing, a lighting means arranged in the housing and a control/evaluation unit, the pressure sensor element having a semiconductor material and a measuring membrane, which has at least one integrated resistance element. When the measuring membrane experiences a pressure dependent deflection, the control/evaluation unit ascertains using the integrated resistance element, an electrical signal for determining the pressure measurement variable, wherein the lighting means optically excites the integrated resistance element, and the control/evaluation unit ascertains, based on a change of the electrical signal caused by the optical excitation, whether a malfunction of the pressure sensor is present.

Abstract: A differential pressure measuring arrangement, comprising: a differential pressure measuring transducer; a first differential pressure line supplying the differential pressure measuring transducer with the first media pressure; a second differential pressure line supplying the differential pressure measuring transducer with the second media pressure; a temperature sensor; and a processing and evaluation unit for processing the differential pressure measurement signal and the temperature signal; wherein the processing and evaluation unit is adapted to determine a significant correlation between a change of the temperature signal and the differential pressure signal and to consider such as indication of a plugged differential pressure line and is further adapted to test whether a considered indication of a plugged differential pressure line can be verified based on additional process data, which preferably were not registered by the differential pressure measuring transducer.

Abstract: A method for diagnosing a differential pressure line of a differential pressure measurement arrangement includes capturing a first set number of differential pressure values, which represent a difference between a first media pressure and a second media pressure within a process, and checking whether the differential pressure measurement arrangement and/or the process are in a state that allows a diagnosis of the differential pressure line. Where it is determined that the differential pressure measurement arrangement and/or the process are not in a state that allows a diagnosis of the differential pressure line, the differential pressure values are captured anew such that the previously captured differential pressure values are deleted or overwritten. Otherwise, a diagnostic function to determine whether a differential pressure line is blocked is carried out.

Abstract: Pressure sensor comprising a housing, a pressure sensor element arranged in the housing, a lighting means arranged in the housing, and a control/evaluation unit, wherein the pressure sensor element has a semiconductor material and a measuring membrane, wherein a first pressure is supplied to a first side of the measuring membrane and a second pressure to a second side of the measuring membrane, and the measuring membrane experiences a pressure-dependent deflection, wherein the lighting means provides an optical excitation of the pressure sensor element and the control/evaluation unit, based on a change of the electrical signal caused by the optical excitation, ascertains a static pressure value present in the first and/or second pressure and performs a correcting, or compensating, of the pressure measurement variable with the assistance of the static pressure value.

Abstract: A pressure sensor for determining a pressure measurement variable includes a housing, a pressure sensor element arranged in the housing, a lighting means arranged in the housing and a control/evaluation unit, the pressure sensor element having a semiconductor material and a measuring membrane, which has at least one integrated resistance element. When the measuring membrane experiences a pressure dependent deflection, the control/evaluation unit ascertains using the integrated resistance element, an electrical signal for determining the pressure measurement variable, wherein the lighting means optically excites the integrated resistance element, and the control/evaluation unit ascertains, based on a change of the electrical signal caused by the optical excitation, whether a malfunction of the pressure sensor is present.

Abstract: A flow-rate measurement assembly for measuring a flow rate of a medium through a measurement pipe, comprising at least one differential-pressure producer, and comprising a differential-pressure measurement transducer for providing a differential-pressure measurement signal, which depends upon the difference between the high-pressure-side media pressure and the low-pressure-side media pressure. The difference is a measure of the flow rate of the medium.

Abstract: A pressure transducer comprising a resistive pressure sensor element with a measurement membrane which has at least four resistor elements. The resistor elements are arranged in a full-bridge circuit, having a longitudinal direction in which the full bridge circuit is to be supplied with a constant current. When being supplied with the constant current, a longitudinal voltage has a first pressure dependency and a first temperature dependency, and a diagonal voltage has a second pressure dependency and a second temperature dependency, the second pressure dependency being greater than the first pressure dependency at a given temperature. The pressure transducer has a processing circuit which is designed to determine a measured pressure value at least using the diagonal voltage and optionally the longitudinal voltage.

Abstract: The invention relates to a flow-rate measurement assembly for measuring a flow rate of a medium (2) through a measurement pipe (3), comprising at least one differential-pressure producer (4), which is located in the measurement pipe (3) and which effects a drop in the media pressure, which drop depends upon the flow rate, and comprising a differential-pressure measurement transducer (5) for providing a differential-pressure measurement signal (22), which depends upon the difference between the high-pressure-side media pressure and the low-pressure-side media pressure, wherein the difference is a measure of the flow rate of the medium (2), wherein the evaluating unit (10) is designed to determine a relationship between the differential-pressure measurement signal (22) and a characteristic parameter of a fluctuation of the differential-pressure measurement signal (22), to judge the determination of a monotonically decreasing relationship between the differential-pressure measurement signal (22) and the characte

Abstract: A differential-pressure measuring assembly comprising a differential-pressure measuring transducer for detecting the difference between the first media pressure and a second media pressure and for providing a differential-pressure measurement signal that depends on the difference between the first media pressure and the second media pressure; a first effective-pressure line, which is connected to a first pressure inlet of the differential-pressure measuring transducer in order to apply the first media pressure to the differential-pressure measuring transducer; a second effective-pressure line, which is connected to a second pressure inlet of the differential-pressure measuring transducer in order to apply the second media pressure to the differential-pressure measuring transducer; at least one temperature sensor for outputting a temperature signal that correlates with a temperature of the effective-pressure lines; and a processing unit for processing the differential-pressure measurement signal and the temper

Abstract: A pressure transducer comprising a resistive pressure sensor element with a measurement membrane which has at least four resistor elements. The resistor elements are arranged in a full-bridge circuit, having a longitudinal direction in which the full bridge circuit is to be supplied. When supplying a constant current, a longitudinal voltage has a first pressure dependency and a first temperature dependency, and a diagonal voltage has a second pressure dependency and a second temperature dependency, the second pressure dependency being greater than the first pressure dependency at a given temperature. The pressure transducer has a processing circuit which is designed to determine a measured pressure value at least using the diagonal voltage and optionally the longitudinal voltage. The processing circuit is further designed to check whether a value pair of a longitudinal voltage and a diagonal voltage corresponds to an expected functional relationship at a current temperature.

Abstract: A differential-pressure measuring assembly comprising a differential-pressure measuring transducer for detecting the difference between the first media pressure and a second media pressure and for providing a differential-pressure measurement signal that depends on the difference between the first media pressure and the second media pressure; a first effective-pressure line, which is connected to a first pressure inlet of the differential-pressure measuring transducer in order to apply the first media pressure to the differential-pressure measuring transducer; a second effective-pressure line, which is connected to a second pressure inlet of the differential-pressure measuring transducer in order to apply the second media pressure to the differential-pressure measuring transducer; at least one temperature sensor for outputting a temperature signal that correlates with a temperature of the effective-pressure lines; and a processing unit for processing the differential-pressure measurement signal and the temper

Abstract: A relative pressure sensor for registering pressure of a medium relative to surrounding atmospheric pressure includes: a pressure measuring cell having a measuring membrane and a platform, wherein pressure of the medium can act on a first side of the measuring membrane facing away from the platform, and wherein the platform has a reference air opening, through which surrounding atmospheric pressure can act on a second side of the measuring membrane facing the platform. A support body, through which a reference air duct extends between a first surface section and a second surface section of the support body is provided, wherein the pressure measuring cell is affixed to the support body with a pressure resistant, bonded adhesive.

Abstract: A relative pressure sensor for registering pressure of a medium relative to surrounding atmospheric pressure includes: a pressure measuring cell having a measuring membrane and a platform, wherein pressure of the medium can act on a first side of the measuring membrane facing away from the platform, and wherein the platform has a reference air opening, through which surrounding atmospheric pressure can act on a second side of the measuring membrane facing the platform. A support body, through which a reference air duct extends between a first surface section and a second surface section of the support body is provided, wherein the pressure measuring cell is affixed to the support body with a pressure resistant, bonded adhesive.