Robert Boschgmbh

Zf Friedrichshafen Ag

Weidmüller Monitoring Systems Gmbh

Ralf Schmidt

Sabine Roesch

Lutz Dorfmueller

Markus Siebert

Christoph Lang

Lothar Diehl

Martin-Peter Bolz

Henrik Schittenhelm

Detlef Heimann

Lakshmi Venkatraman

Matthias Moerbe

Joachim Berger

Tarek Mili

Bernhard Kamp

Martin Kiefer

Rainer Strohmaier

Uwe Glanz

Juergen Herp

Helmut Marx

Christian Neumann

Hans-Joerg Fees

Thorsten Ochs

Norbert Breuer

Felix Hess

Stefan Henneck

Ralf Wirth

Harald Guenschel

Klaus Maldener

Hans Kobschaetzky

Benjamin Hagemann

Georg Rixecker

Gerd Teike

Karl-Franz Reinhart

Christopher Holzknecht

Stefan Rodewald

Henrico Runge

Katharina Schaenzlin

Juergen Ruth

Peter Volkmer

Jochen Fehse

Michael Huber

Johannes Grabis

Ulrich Hasenkox

Alexander Hetznecker

Stefan Heinzelmann

Frank Schnell

Juergen Sindel

Walter Bauer

Christoph Zimmermann

Sabine Rösch

Bernard Kamp

Andreas Quell

Mahito Ando

Thorsten Baunach

Andreas Schaak

Martin Voss

Ulrich Vieth

Johannes Domke

Kai-Achim Baldenhofer

Silas Klug

Thomas Grau

Peter Hauser

Saskia Koblmiller

Manfred Meier

Maxim Sukhman

Kai Baldenhofer

Peter Bartscherer

Burkhard Michaelis

Olav Harzer

A method for detecting a state of change of an installation includes rotating at least one first component around a rotatable connection using a drive such that at least part of the at least one first component carries out an oscillation. The at least one first component is mechanically connected to a second component via the rotatable connection. The method further includes recording the oscillation using a third component. The method includes investigating the recorded oscillation for changes based on a reference value. The method further includes detecting the state of change of the installation in reference to the changes to based on the reference value.

Method for detecting a state change of an installation

A method for damping torsional vibrations in a power generation plant that includes a drive train, a rotor fitted at a rotor-side end of the drive train, and a generator driven via the drive train and fitted at a generator-side end of the drive train includes determining an angular difference between a first point and a second point on the drive train over time. The method further includes damping torsional vibrations in the drive train on the basis of the time profile of the determined angular difference by correspondingly presetting a load torque of the generator and a drive torque of the rotor.

Method for damping torsional vibrations in a power generation plant

A sensor element is described that includes at least one semiconductor component having a gas-sensitive layer which is attached to a substrate by the flip-chip method, the gas-sensitive layer facing the substrate and a supply arrangement being provided to supply a gas to be examined to the gas-sensitive layer. The semiconductor component is enclosed in a casing. Also described is a method for manufacturing the sensor element, in which a semiconductor component having a gas-sensitive layer is attached by the flip-chip method to a substrate in such a way that the gas-sensitive layer faces the substrate. After that, the casing is applied by a plasma sputtering method, in particular an atmospheric plasma sputtering method. Finally, a use of the sensor element in the exhaust system of an internal combustion engine is also described.

Gas sensor and flip-chip method for its manufacture

A device for measuring the torque, the direction of rotation, and the speed of rotation of a shaft of a transmission, in particular an output shaft of an azimuth transmission, includes bands configured to be mounted in a fixed position on an outer circumference of the shaft. The bands are configured to be detected by measuring sensors and allow torsion of the shaft to be measured. Each of the measuring sensors has a Hall effect sensor, and the bands are respectively arranged at two different positions on the outer circumference of the shaft. Each of the bands includes polygonal apertures and/or depressions having webs located between the apertures and/or depressions. The webs are configured to be detected by the measuring sensors. A method includes operating the device to measure the torque, the direction of rotation, and the speed of rotation of the shaft.

Device for measuring the torque, the direction of rotation and the speed of rotation of a shaft of a transmission, in particular an output shaft of an azimuth transmission of a wind power plant

A method of operating a wind turbine includes providing a wind turbine having a plurality of blades. A respective sensor is attached to each of the blades. First measurements of a structural characteristic of each of the blades are repeatedly taken by use of the sensors. A tolerance band is established for the measurements. Signals indicative of the first measurements are wirelessly transmitted only if the first measurements are outside of the tolerance band. The transmitted signals are received at a controller. An actuator signal is sent from the controller to at least one actuator associated with the blades. The sending is in response to the receiving of the transmitted signals. At least one of the blades is actuated dependent upon the actuator signal. The actuating is performed by the at least one actuator. Second measurements of the structural characteristic of each of the blades are repeatedly taken by use of the sensors after the actuating step. The wirelessly transmitting, receiving, sending and actuating steps are repeated for the second measurements.

Energy-efficient wireless communication scheme for wind turbines

A sensor element is provided for gas sensors, in particular to determine particles in gas mixtures, the sensor element including at least one electrochemical measuring element exposed to the gas mixture to be determined, and at least one temperature-measuring element integrated into the sensor element. The temperature-measuring element includes a resistor track, which has an electric resistance of less than 180 Ohm at 0&#xb0; C. The resistor track may thus be produced by thin-foil technology, such as screen printing, for example.

Sensor element for gas sensors and method for operating same

The invention concerns a procedure to ascertain a concentration of sooty particles in an exhaust gas system of an internal combustion engine or a depletion of an emission control system of the internal combustion engine due to the loading of sooty particles, whereby the sooty particle concentration in the exhaust gas system is determined by means of a collecting particle sensor, which emits a sensor signal and whereby the depletion of the emission control system due to the loading of sooty particles is determined from the sooty particle concentration. The task is thereby solved, in that the sensor signal is corrected by means of predetermined corrections with regard to a sensor temperature and/or an exhaust gas temperature and/or a flow velocity of the exhaust gas and/or a voltage applied at the particle sensor. Transverse sensibilities of the particle sensor can thereby be taken into account during the evaluation; and the determination of the accumulated loading of sooty particles and the determination of the sooty particle concentration in the exhaust gas system are improved. In the process, the sensor temperature enters into the correction to the extent that a temperature dependence of the electrical resistance of the loading of sooty particles is determined in a preparation phase and can be taken into account during the evaluation of the sensor signal.

Procedure to acquire a sooty particle concentration in the exhaust gas of an internal combustion engine

A method is described for controlling the soot deposition on sensors. A sensor element is provided, which includes a first electrode and a second electrode. Different measuring voltages Uand Ucan be applied to the sensor element. During a first time period t, the sensor element is operated at a higher voltage Uuntil a triggering threshold AP of the sensor element is exceeded, while it is operated at a voltage U, which is different from higher voltage U, Ubeing lower than voltage U, during a second time period t.

Method for influencing soot deposits on sensors

A method and a particle sensor for measuring particles, especially soot particles, in which the particles to be detected accumulate in a measuring region of the particle sensor. The particles located in the gas stream or the particles already accumulated in the measuring region are burned by a combustion device, the combustion being controlled via a control signal from a control unit, which is electrically connected to a measuring device, in such a way that the quantity of the particles adhering in the measuring region remains constant. The physical variable of the combustion device, which leads to the controlled combustion of the particles, is drawn upon as the signal amplitude of the particle sensor.

Method, particle sensor and particle sensor system for measuring particles

In a method and an apparatus for the defined regeneration of a sooty surface, in particular a ceramic sensor surface, in which the soot particles adhering to the surface are burned off by a dielectrically hindered discharge by of a discharge device, power of the dielectrically hindered discharge is set such that a higher rate of removal of the soot particles than their rate of deposition on the surface is effected, after the regeneration phase, the remaining soot deposit is detected by a measuring device mounted on the surface, wherein an undefined state of the sensor surface does not occur, and the discharge device and the measuring device may be mounted very compactly on one or two ceramic substrate elements.

Method and apparatus for the defined regeneration of sooty surfaces

A sensor element for gas sensors for determining the concentration of particulates in gas mixtures, in particular soot sensors having at least one first measuring electrode applied to an electrically insulating substrate and at least one second measuring electrode, a voltage being applicable to the first and second measuring electrodes. The first measuring electrode is at least partly covered by a porous material open to diffusion of the particles to be determined.

Sensor element for particle sensors and method for operating the sensor element

A sensor for determining the concentration of particles in gases, in particular of soot particles, has at least one substrate element, and a measuring area between at least one first and one second measuring electrode, the two measuring electrodes being configured so that by applying a voltage between the measuring electrodes, an asymmetric electric field is formed on the measuring area. The sides of the first and second measuring electrodes, facing one another, may not be parallel to one another, for example. Furthermore, at least one measuring electrode may have a structure along the side facing the other measuring electrode or along the finger electrodes.

Resistive particle sensors having measuring electrodes

A soot particle sensor for an exhaust system of an internal combustion engine includes a first electrode device and a second electrode device. The electrode devices are situated at a distance from one another and are able to be exposed to the gas stream, at least in some areas. It is provided that the electrode devices are separated from each other by an intermediate layer made of an electrically insulating material, and the electrode devices have free edges that are set apart from each other by the thickness of the intermediate layer and are able to be exposed to the gas stream.

Sensor for detecting particles in a gas stream and method for its manufacture

A sensor for detecting particles in a gas flow, in particular soot particles in an exhaust gas flow, includes at least two measuring electrodes, which are positioned on a substrate made of an insulating material. To protect the measuring electrodes, they are covered by a protective layer.

Sensor for detecting particles

The present invention relates to a measuring device and a method for contactless detection of an angle of rotation or a torsional rotation. The measuring device includes a first resonator () and a second resonator (). The two resonators () have an essentially circular circumference, on which at least one protrusion and/or one recess is disposed. The two resonators () are coplanar to one another and are also rotatable relative to one another. In addition, an exciter device () for exciting the resonators and a receiver device () for measuring a backscattered signal are present. Upon a relative rotation of the two resonators () to one another, the resonant frequency changes, which is used as a measure for ascertaining the angle of rotation.

Measurement of angle rotation using microstrip resonators (2.4ghz,2 degree)

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Gerlingen, Germany

Ralf Schmidt