Endress + Hauser Gmbh + Co. Kg

Endress+hauserse+co. Kg

Andreas Spitz

Lars Karweck

Thomas Zieringer

Sergej Lopatin

Romuald Girardey

Roland Dieterle

Marc Andreas Schlachter

Ralph Stib

Udo Grittke

Manuel Sautermeister

Axel Humpert

Andreas Roβberg

Peter Selders

Thomas Uhlin

Yves Boulenger

Andreas Roßberg

Richard Wagner

Klaus Winter

Thomas ÜHlin

A measurement transducer, comprising: a sensor module having a sensor element, sensor electronics and a main electronics module. The sensor element emits sensor signals, and the sensor electronics processes the digitized sensor signals with a transmission function and provides processed sensor measurement values on a digital interface. The main electronics module is functionally connected to the sensor electronics and a logic unit, and a communications interface. The logic unit is configured to receive the sensor measurement values provided on the digital interface and to cause the output of a measurement signal corresponding to the sensor measurement values through the communications interface. The logic unit is configured to carry out a monitoring function. The monitoring comprises, in addition to a currently provided sensor measurement value, the reception of the associated digitized sensor signals, with the aid of a test function which comprises the transmission function. The logic unit is also configured to provide the control measurement value to the sensor electronics, wherein the sensor electronics is configured to carry out a comparison between the control measurement value and the sensor measurement value and to cause the communications interface, via an alarm output, to directly emit an error signal in the event of deviations.

Measurement transducer having a monitoring function

An application-specific integrated circuit comprises: analog inputs having analog-digital converters; at least one digital signal processor, which has input registers and output registers. The analog-digital converters sample and digitize input signals Swith sampling frequencies fand forward the digitized signals SDwith output frequencies fto the input registers of the digital signal processor. The digital signal processor processes the digitized signals SDto m processed signals SPand forwards such to the output registers of the digital signal processor. The digital signal processor has a clock frequency, wherein, furthermore, the signals of the output registers can be output, respectively read-out, with an output frequency. One or more of the frequencies is, respectively, variable, wherein especially one or more of the frequencies, respectively, variable independently of the others of the frequencies.

Application-specific integrated circuit and measurement transmitter having such a circuit

An apparatus for determining and/or monitoring pressure. The apparatus comprises at least one pressure transducer, which transduces pressure into an electrical signal. The invention includes the features that at least one acoustic sensor is provided, that the acoustic sensor registers acoustic signals and transduces such into electrical signals, and that the acoustic sensor is mechanically and/or acoustically coupled with the pressure transducer.

Apparatus for determining and/or monitoring ( {A} ) pressure

A measuring apparatus for outputting a measurement signal representing the difference between a first pressure and a second pressure. The apparatus includes a first pressure measuring transducer module for outputting a sequence of first signals representing the first pressure; a second pressure measuring transducer module for producing a sequence of second signals representing the second pressure; an evaluation module for ascertaining a sequence of difference values between the two pressure values and for outputting a sequence of fourth signals, which, in each case, represent the pressure difference; a first cable connection between the first and second pressure measuring transducer module; and a second cable connection between the second pressure measuring transducer module and the evaluation module. The modules are separated spatially from one another. The second pressure measuring transducer module has a mapping unit, which is provided for receiving the sequences of first and second signals, and for outputting to the evaluation module via the second cable connection a sequence of third signals, which, in each case, contain the pressure values.

Measuring apparatus for determining a pressure difference

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Schopfheim, Germany

Andreas Spitz