Robert Boschgmbh

Lutz Dorfmueller

Ralf Schmidt

Henrik Schittenhelm

Sabine Roesch

Helmut Marx

Axel Wenzler

Ralf Noltemeyer

Markus Siebert

Lothar Diehl

Franz Jost

Werner Gruenwald

Siegbert Steinlechner

Ulrich Eisele

Klaus Marx

Thomas Klotzbuecher

Detlef Heimann

Horst Boeder

Martin Freitag

Thorsten Ochs

Henrik Siegle

Harald Guenschel

Gerd Scheying

Johannes Kanters

Henrico Runge

Stefan Rodewald

Gerd Teike

Juergen Ruth

Juergen Sindel

Frank Schnell

David Heisenberg

Ingrid Wuehrl

Andreas Schaak

Gunter Haas

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

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 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 device for measuring an angle and/or the torque acting on a rotatable body is proposed according to the invention, whereby the rotational angle is detected by means of magnetic or optical sensors. In particular, in a preferred exemplary embodiment, two devices () are proposed, each of which comprises two optically readable code tracks. The two code tracks (or) on one device (or) are similar in design and are offset in relation to each other, so that associated sensors () output a digital signal. The rotational angle is calculated based on the lag between the two digital signals. In a further embodiment it is provided that a torsion element () having a known torsional stiffness is situated between the two devices (). Torque transferred by the rotatable body () can also be calculated therefore from the angular difference of the two devicesThe device is used preferably in the steering axle of a motor vehicle.

Device for measuring the angle and/or the angular velocity of a rotatable body and/or the torque acting upon said body

The invention proposes a method for determining a rotation angle (&PHgr;) and/or an angular difference (&dgr;) in a divided shaft ( ), which has a number of phase tracks ( , and ) disposed on it, which are provided with codes. Via an evaluation unit, each group of tracks ( , and ) supplies a phase signal (&agr; , &agr; ), which is respectively ambiguous with regard to a rotation of the shaft ( ). The at least two phase signals (&agr; , &agr; ) are added up in a weighted fashion to produce a signal S from which the integer portion and the non-integer portion are calculated. The non-integer portion is proportional to the angular difference (&dgr;) between the two track groups. The torque (M) is determined through multiplication with the spring rate of an interposed torque rod. The unambiguous torque (&PHgr;) is determined from the integer portion of the signal (S) and a phase value (&agr; ) or (&agr; ) with the aid of a weighted addition.

Method for determining a rotation angle and/or an angle differential from phase signals

A polymer compound containing a ceramic powder and a polymer is described, the ceramic powder having a specific surface area of more than 1.8&middot;10 m /m and constituting more than 5 vol. % of the polymer compound, the polymer being shear resistant, and the pore sizes in the polymer compound being 3-15 nm. Furthermore, a method for manufacturing this polymer compound, its use, and a sintered body manufactured therefrom are also described.

Polymer compound, the production and use thereof, and sintered compacts produced therefrom

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Gerlingen, Germany

Lutz Dorfmueller