Robert Boschgmbh

Ant Nachrichtentechnik Gmbh

Roland Mueller-Fiedler

Markus Ulm

Winfried Bernhard

Albrecht Kuke

Klaus-Michael Mayer

Thomas Eh Walter

Wolf-Henning Rech

Heiner Hauer

Lutz Mueller

Bernhard Schwaderer

Andre Mueller

Thomas Schwander

Franz Laermer

Erich Zabler

Reinhard Neul

Thomas Buck

Gottfried Flik

Klaus Heyers

Helmut Sautter

Ingo Herrmann

Michael Knauss

Mathias Reimann

Klaus Breitschwerdt

Steffen Schmidt

Christoph Treutler

Juergen Graf

Rainer Schink

Ulrich Kohn

Ulrich Kunz

Manfred Rothley

Manfred Moellendorf

Veronique Krueger

Hagen Schmidt

Dietmar Krieg

Andreas Kern

Karlheinz Storck

Michael Gundlach

Nils Kummer

Oliver Roesch

Joerg Buth

Lars Erdmann

Marion Simon

Gerd Muehlnikel

Wilhelm Leneke

Joerg Rehder

Stefan Kessel

Christoph Kampshoff

Dorothea Papathanassiou

Frauke Driewer

Joerg' Schieferdecker

A measurement bridge circuit includes a first branch and a second branch. The first branch contains a first resistor which is sensitive to measured variables and an invariable resistor connected in series. A first tap point is located between the first resistor and the invariable resistor. The second branch contains a second resistor which is sensitive to measured variables and a variable resistor arrangement connected in series. The variable resistor arrangement includes a first component having an invariable electrical resistance value and a second component having a variable electrical resistance value. The second component is connected in parallel with the first component in order to vary a total electrical resistance value for the variable resistor arrangement. A second tap point is located between the second resistor and the variable resistor arrangement.

Variable resistor arrangement, measurement bridge circuit and method for calibrating a measurement bridge circuit

A component is provided for an impedance change in a coplanar waveguide which includes two grounding conductors and a signal line lying between the grounding conductors, as well as a conducting connecting element, which has a covering surface for the two grounding conductors and the signal line, and is electrically insulated, so that in each case a capacitor is formed. The connecting element and the lines are situated and arranged so that the respective capacitor between the grounding conductors and the connecting element has an invariable capacitance, but the capacitor between the connecting element and the signal line has a variable capacitance. A structure is also provided in which in an exactly opposite way, the respective capacitor between the grounding conductors and the connecting element has a variable capacitance, but the capacitor between the connecting element and the signal line has an invariable capacitance. Furthermore, a method for producing such a component is also provided.

Component for impedance change in a coplanar waveguide and method for producing a component

A method and a system for detecting the spatial movement state of moving objects, e.g., vehicles. Due to a, for example, non-cartesian arrangement of four rotational rate sensors and/or acceleration sensors, it is also possible to obtain a redundant signal in addition to the desired useful signal indicating the spatial movement state, e.g., the rotational movement and/or acceleration in space; if this redundant signal is large enough in comparison with the rotational rate actually applied, it may be used for detection of the size of the error and the defective sensor. The four sensors are mounted, for example, on a sensor platform forming a three-sided truncated pyramid so that all possible three-way combinations of sensors are mutually linearly independent. The accuracy about the vertical axis is defined by the angle of inclination of the side faces of the truncated pyramid.

Method and system for detecting a spatial movement state of moving objects

A capacitor with alterable capacitance for changing the impedance of a section of a coplanar waveguide, which may be used in particular as a high-frequency microswitch, is provided. A ground lead and a signal lead interrupted by an electroconductive connection which is self-supporting at least in some areas are provided, the capacitor including the electroconductive connection and an additional electroconductive connection connected to the ground lead. A structure connected to the electroconductive connection is provided, which is designed in such a manner that it reduces mechanical stresses which occurs in the electroconductive connection. An exemplary embodiment of the device provides for the electroconductive connection to be made of a material having coefficients of thermal expansion similar to that of silicon and a high modulus of elasticity compared to metals, in particular of molybdenum, tantalum or tungsten. The two exemplary embodiments may be combined.

Device having a capacitor with alterable capacitance, in particular a high-frequency microswitch

A bridge igniter having a resistance layer which has a given electrical resistance and which can be heated by an electrical current, an electrical insulating layer that is disposed on the resistance layer and has a given thermal conductivity, a reactive layer that is disposed on the insulating layer, the insulating layer transmitting the heat that is produced in the resistance layer to the reactive layer, thereby causing the latter to undergo an exothermic reaction, and a pyrotechnic layer that is disposed on or above the reactive layer and that may be set off by the exothermic reaction of the reactive layer.

Bridge igniter

A device including a capacitor system for varying the impedance of a section of a coplanar waveguide. The capacitance of the capacitor system is variable. The capacitor system includes a first electrically conductive connection, a second electrically conductive connection, and a third electrically conductive connection at least partially. The signal line of the section of the waveguide is interrupted over a predetermined length, the first connection connecting the ground lines of the waveguide, the second connection connecting the ground lines of the waveguide, and the third connection connecting the two parts of the interrupted signal line.

Coplanar switch

An apparatus for sensing electromagnetic radiation with local resolution for image-producing sensors that can be economically produced and installed is decribed. This is achieved, in that a micromechanically producible optical imaging system is provided.

Apparatus for sensing electromagnetic radiation

A device having a capacitor for changing the impedance of a section of a coplanar waveguide is provided, the capacitance of the capacitor being changeable, the signal line of the section of the waveguide being interrupted for a predefined length, a first connection connecting the ground lines of the waveguide, and the second connection connecting both parts of the interrupted signal line.

Coplanar waveguide switch

An optical sensor for detecting wetting of a surface ( ), In particular of a vehicle window, has at least one transmitter ( ) and at least one receiver ( ) for electromagnetic waves, the surface being located in a sensor region ( ) between the at least one transmitter ( ) and the at least one receiver ( ). The development of wetting on the sensor region ( ) of the surface ( ) causes a signal change. The optical sensor has a light-carrying element ( ), in which the electromagnetic waves are guided bidirectionally into the sensor region ( ) and out of the sensor region ( ), and a retroreflector ( ) is disposed in the sensor region ( ) in such a way that it returns the electromagnetic waves, reflected before the surface ( ), back to the surface ( ) and from there to the light-carrying element ( ).

Optical sensor

A method is proposed for producing three-dimensional structures, especially microlenses, in a substrate using an etching process, at least one original shape having a known original surface shape being present initially on the substrate in a plurality of places. The etching process has at least one first etching removal rate a and a second etching removal rate a which are material-dependent, and of which at least one is changeable as a function of time. The original shape is converted to a target shape by the etching process, the original surface shape of the original shape and the target surface shape of the target shape to be reached being known before the beginning of the etching process. In order to achieve the target surface shape, at least one of the etching rates a or a is set by a change of at least one etching parameter calculated before the beginning of the etching process as a function of the etching time.

Method for producing three-dimensional structures by means of an etching process

An optical waveguide is described which has a core and a sheath, each of which is made of a fully fluorinated fluorocarbon material. In particular, a fully fluorinated Teflon material such as Teflon AF 1600 or Teflon AF 2400, or a mixture thereof, is suitable as the fully fluorinated fluorocarbon. The optical waveguide is optically transparent around the 1300 nm and/or 1550 nm wave band. Furthermore, the core of the optical waveguide may have a refractive index that is higher than the refractive index of the sheath. The optical waveguide is suitable for use as, for example, an integrated optical waveguide for transmitting information in optical telecommunications.

Integrated optical waveguide

The optical signal transmission system includes one or more optical wave guide switches ( to ) for switching between transmission paths for transmission of light signals and an optical level adjusting device ( to ) connected with the one or more optical wave guide switches in at least one of the transmission paths. The optical level adjusting device ( to ) controls its own light transmittance with a thermooptic device ( ) and the one or more optical wave guide switches ( to ) switch between transmission paths by a similar thermooptic device ( ). The one or more optical wave guide switches and the optical level adjusting device are arranged in an integrated thermooptic circuit in a common substrate.

Optical signal transmission with thermooptically controlled optical switching

A method for fabricating a locally reinforced metallic microfeature on a substrate provided preferably with an electrical contacting or a driving circuit, and on an organic, patterned sacrificial layer, which is removed after the metallic microfeature is applied, is described. In fabricating the local reinforcement of the microfeature, at least one further organic layer, formed as a mask, is deposited, which is likewise removed following pattern delineation of the metallic layer.

Method for fabricating locally reinforced metallic microfeature

The thermooptic modulator includes a wave guide (,) having a switching section (,), a refracting section (,) bordering the switching section (,) and extending transversely to a signal propagation direction (,) in the wave guide and a first heating element (,) extending on the refracting section (,) along a boundary (,) between the wave guide (,) and the refracting section (,). In order to improve signal suppression when the modulator is switched to an impermable state, a second heating element (,) is provided extending on the wave guide (,) along the boundary (,).

Thermooptical modulator

With a sensor and method, it is possible for platinum resistor elements to be used advantageously as heating elements, temperature sensors, printed circuit traces, or as chemically resistant electron beam sensitive layers. To ensure a long-lasting adhesion of the platinum resistance layer to a dielectric substrate, even during exposure to temperatures which are elevated over ambient temperature and under dry and most atmospheric conditions, a thin adhesion layer of platinum silicide, for example, is deposited between the platinum resistance layer and the dielectric substrate. Resistor elements patterned from the platinum layer can advantageously be used in temperature sensors, mass flow sensors, chemical sensors, gas sensors, or humidity sensors.

Sensor and method for manufacturing a sensor

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Leonberg, Germany

Roland Mueller-Fiedler