Vega Grieshaber Kg

Juergen Haas

Karl Griessbaum

Christian Weinzierle

Juergen Motzer

Martin Gaiser

Roland Welle

Christian Hoferer

Josef Fehrenbach

Juergen Lienhard

Daniel Schultheiss

Thomas Deck

Andreas Isenmann

Volker Allgaier

Winfried Rauer

Robert Laun

Dominik Fehrenbach

Matthias Schmidt

Joachim Benz

Manuel Kaufmann

Natalie Waldecker

Stefan Kaspar

Ralf Körnle

Matthias Harter

Manfred Metzger

Johannes Franz

Fabian Rank

A measuring arrangement having a first dual conductor field device with a first sensor and a first dual conductor interface for the power supply of the first dual conductor field device and for the transmission of data from the dual conductor field device to a superordinate unit, wherein the first dual conductor field device has at least one second dual conductor interface suitably designed to receive data from at least one second dual conductor field device.

Measuring arrangement

The invention is an impedance threshold level sensor, comprising: a measuring probe which can be influenced by a medium surrounding the measuring probe in a measuring capacitance, the measuring probe comprising a measurement electrode and a reference electrode insulated from the measurement electrode, between which the measuring capacitance is formed, a measuring resonant circuit, in which the measuring probe is arranged as a capacitance-determining element, an electronic unit having a signal generator for exciting the measuring resonant circuit and a signal detector for determining a response signal of the measuring resonant circuit, a signal processing unit for generating a measurement signal, which is connected to the electronic unit, wherein the measurement electrode and the reference electrode are designed and arranged such that an increasing filling level of the medium reaches the reference electrode earlier than or together with the measurement electrode.

Impedance point level sensor

The invention is an impedance sensor with:

Impedance sensor and method for its operation

An impedance limit switch is configured to determine a limit level of a medium. The switch may include a measuring probe having an oscillator circuit; and an electronic circuit configured to generate an excitation signal for the oscillator circuit. The electronic circuit is further configured to sweep a frequency of the excitation signal and determine a resonance curve of the oscillator circuit. The electronic circuit is further configured to adapt an amplitude of the excitation signal dependent upon the resonance curve in order to reduce an EMC radiation of the switch.

Impedance limit switch for reducing EMC radiation

A radar fill level measurement device for determining a fill level of a medium is provided, including a transmitter configured to transmit a transmission signal towards the medium; a receiver configured to receive a reception signal reflected by the medium; and a controller configured to determine the fill level of the medium based on the reception signal and based on at least one evaluation parameter, the radar fill level measurement device being configured to vary a transmitting power of the transmission signal, the controller being further configured to determine a current transmitting power of the transmission signal, and the controller being further configured to vary, based on the determined current transmitting power, a value of the at least one evaluation parameter and/or at least one measurement signal that correlates with the reception signal, such that the fill level is determined taking into account the transmitting power.

Radar fill level measurement device and method for operating a radar fill level measurement device

A field device for process automation, comprising a short-range wireless communication circuit having a mobile communication device and a control circuit for controlling the communication circuit. The control circuit selects data stored in the field device, instructs the communication circuit to transmit the selected data in a publicly available broadcast mode, establishes a short-range communication connection with the mobile communication device, and uses configuration data that the mobile communication device has sent to the field device after establishing the short-range communication connection in order to change the selection of data sent out in the publicly available broadcast mode or to stop the broadcast mode.

Field device and method for providing broadcast information

A fill level radar for continuously measuring a fill level is provided, including a radar arrangement configured to generate and to emit a radar signal toward a surface of a filling material; and an impedance spectroscopy arrangement configured to detect a build-up of deposits on the radar arrangement, or to detect a gas phase of the filling material, by impedance spectroscopy, the impedance spectroscopy arrangement being integrated in the radar arrangement.

Fill level radar comprising a build-up detector

Impedance level sensor

Described is a measuring device for determining a process measurement variable, in particular a pressure, a filling level, and/or a limit level of a medium. The measuring device has a measuring module for recording a measured value of the process measurement variable, a communication module which is configured for data transmission to a communication device, in particular for transmission of a measurement signal correlating with the measured value to the communication device, an electrical load which is supplied with electrical power by means of a supply line of the measuring device. In this case, a switching element for activating and deactivating a power supply of the electrical load is arranged in the supply line, the measuring device is configured in order, based upon the switching element, to deactivate the power supply at least during a part of a transmission time and/or at least during a part of a measurement time.

Measuring device with power management

A pulse running time filling level sensor includes a sampling device for sampling an IF signal at discrete instants and for converting the sampling values into digital sampling values, and a digital signal processing device for subsequent processing of the digital sampling values by calculating at least one new value characterizing the IF curve from respectively exactly two digital sampling values.

Paired ZF sampling for pulse running time filling level sensor

A weight apparatus for a waveguide has a wave resistance. The weight apparatus includes a weight body having a fixing device. The fixing device is adapted to fix the weight body to the waveguide and has a wave resistance which is substantially adapted to the wave resistance of the waveguide.

Weight apparatus for a waveguide, probe apparatus, and method for manufacturing a weight apparatus

An offset determination apparatus and a method are for correcting an offset by supplying a switch-off signal outside a predefinable measuring range of time-expanded sampling values of a reflection signal, which switch-off signal can deactivate a transmitter device at least intermittently in order to generate a predefinable quiescent range within the time-expanded sampling values of the reflection signal and in that, by evaluating at least one sampling value of the time-expanded sampling values which is determined within the quiescent range, a value of an amplitude offset of the time-expanded sampling values of the reflection signal from a normal value is determined and is supplied at an output of the offset provision device.

Apparatus and method for correcting an offset

A sensor includes an electronic module that comprises several electronic subassemblies and a processor that can be electrically coupled to the electronic subassemblies. The subassemblies respectively feature a programmable storage device with subassembly-specific data of the respective subassembly. The content of the respective programmable storage devices can be read out and evaluated by the processor.

Sensor with subassemblies featuring storage devices

A field device for measuring a filling level, a pressure or a density of a medium in a container includes data memory with two memory areas that are separated from one another. First data for safety-critical program modules is stored in the first memory area. Second data for safety-uncritical program modules is stored in the second memory area. The two memory areas are separated from one another. All access to these memory areas is controlled by a memory management unit.

Growing community of inventors

Oberwolfach, Germany

Juergen Haas