Evonik Degussa Gmbh

Northrop Grumman Litef Gmbh

Degussa Gmbh

Markus Ruf

Christian Panz

Mario Scholz

Karl Meier

Michael Kempf

Helga Obladen

Dieter Kuhn

Rene Allerdisse

Burkhard Standke

Hartwig Rauleder

Christoph Batz-Sohn

Heinz Lach

Mustafa Siray

Stefan Scharfe

Andrea Heuschen

Thomas Barthel

Bodo Frings

Guenter Stein

Florian Paulat

Günter Spahlinger

Tobias Banert

Guido Titz

Jürgen Behnisch

Florian Zschunke

Juergen Behnisch

Aziz El Moussaoui

Sven Müller

Peter Erlhöfer

Stefan König

Gunter Spahlinger

Sven Muller

Jurgen Behnisch

Peter Erlhofer

René Allerdisse

A method for reading data from sensors is disclosed comprising: determining a sequence of measured data over time by means of a sensor, wherein the sequence of measured data over time is generated by step-by-step changes in the measured data at input times, which are determined by an input frequency fa and have a time interval of a period 1/fa of the input frequency; reading output data from the sensor at read times, which are determined by a read frequency fs and have a time interval of a period 1/fs of the read frequency, where the read frequency fs is smaller than the input frequency fa; determining, by means of a low-pass filter of the sensor, the ratio N between the input frequency fa and the read frequency fs from the sequence over time of the numbers of input times lying between two adjacent read times.

Method for reading data from inertial sensors

The invention relates to a method for transmitting data between a first unit which accumulates data that has been generated with a first frequency and a second unit which requests the accumulated data with a second frequency. The method has the steps of requesting a first total increment and a first value, which represents a time increment belonging to the first total increment, from the first unit, said first total increment being the data content of the accumulated data block provided at the request time in the first unit; generating a second total increment from the first total increment using the first value, the second total increment being the data content of a data block adapted to a nominal time increment of the second frequency; and transmitting the second total increment to the second unit.

Method and device for transmitting data on asynchronous paths between domains with different clock frequencies

The present invention relates to a method of purifying strong acids or strongly acidic media to remove di- and higher valent metal ions, which can be used within the context of the production of high-purity silica. The invention further relates to the use of special ion exchangers for carrying out the method according to the invention and the resultant high-purity silicas.

Method for the separation of metal ions that are divalent or higher from strong acids or highly acidic media

A precipitated silica having an SiOHabsorbance ratio of greater than or equal to 1.5, a silanol group density of 1 to 3.0 SiOH/nm, a modified tapped density of 1 to 50 g/l, and a pH of 3-5, when measured as a aqueous suspension of 5.00 g of the precipitated silica in 100 ml. of deionized water allows preparation of storage-stable RTV-1 silicone rubber formulations without stabilizer. A process for preparing the precipitated silica and its use in thickening sealants is provided.

Precipitated silicas for storage-stable RTV-1 silicone rubber formulations without stabilizer

A control device comprises a sensor unit, which outputs a measurement signal, which reflects a deviation of an oscillator along a direction of excitation. A controller main unit derives a control signal for an actuator unit from the measurement signal and a harmonic set point signal such that the actuator unit counteracts a deviation of the deflection of the oscillator from a set amplitude of a harmonic resonance oscillation. A controller extension unit estimates actual-phase and actual-amplitude of a residual oscillation of the oscillator and synchronizes the harmonic set point signal with the residual oscillation at a deactivated actuator unit. The residual energy contained in the residual oscillation is used, in order to arrive faster at a defined operation state of the oscillator.

Control device, rotation rate sensor and method of operating a control device with harmonic set point signal

A controller unit includes a PI-controller for harmonic command variables. The transfer function of the PI-controller has a conjugate complex pole at a controller angular frequency &#x3c9;in the s-plane or a pole at ein the z-plane, wherein T is the sampling time of a discrete input signal of the PI-controller and &#x3c9;is larger than 0. The controller angular frequency &#x3c9;is chosen equal to the resonance angular frequency &#x3c9;of an oscillator. The controller parameters, are, for example determined by pole/zero compensation. The controller unit allows, for example, a broad band control of harmonic oscillators in rotation rate sensors.

Controller unit and device for resetting an oscillator excited by a harmonic oscillation, and yaw rate sensor

Hydrophilic precipitated silicas which combine a particularly low initial moisture content with low moisture absorption over time, a low tapped density and a low silanol group density, have the following physicochemical parameters: equilibrium moisture content (at 70% relative humidity/20&#xb0; C.) of 0.5%-5.0% by weight, based on the weight of the hydrophilic precipitated silica, BET surface area of 50-250 m/g, CTAB surface area of 50-250 m/g, and DBP (anhydrous) of 200-350 g/100 g.

Hydrophilic silica for sealants

The invention relates to stabilized dispersions of precipitated silicon dioxide, to a process for production thereof and to the use thereof, especially for production of paper coatings for glossy photo paper for inkjet printing.

Stable aqueous dispersions of precipitated silica

Precipitated silicas having an SiOHabsorbance ratio of greater than or equal to 1, may be used as reinforcers and thickeners for sealants.

Precipitated silicas having special surface properties

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Alfter-Witterschlick, Germany

Markus Ruf