Robert Boschgmbh

Karl-Franz Reinhart

Ingo Herrmann

Kurt Neuffer

Erich Zabler

Tjalf Pirk

Ralf Schmidt

Joachim Berger

Detlef Heimann

Rainer Strohmaier

Bernhard Kamp

Norbert Breuer

Ralf Wirth

Manfred Rothley

Kurt Hurst

Frank Freund

Walter Bauer

Daniel Herrmann

Bernard Kamp

Kai-Achim Baldenhofer

Thomas Grau

Kai Baldenhofer

An arrangement of at least two wafers for detecting electromagnetic radiation, in particular far infrared radiation, comprises a first wafer and a second wafer. The first wafer includes a microsystem formed as a sensor array. The microsystem is configured to register electromagnetic radiation and provide a corresponding sensor signal. The second wafer includes an integrated circuit formed as an evaluation circuit that is coupled to the sensor array. The integrated circuit is configured to detect the electromagnetic radiation with the aid of the sensor signal provided.

Device having at least two wafers for detecting electromagnetic radiation and method for producing said device

A sensor system has a first sensor-element block and a second sensor-element block, at least one first sensor element and one second sensor element are assigned to the first sensor-element block, and at least one third sensor element is assigned to the second sensor-element block. The third sensor element is situated between the first and second sensor elements.

Sensor system and method for operating a sensor system

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

For saving lateral space in a multitrack magnetic head, the connection lead paths (11, 12) run separately side by side along the outside surface of one magnetic layer (13) of the yoke and connect with the conducting strip that runs between the magnetic layers at the open end of the yoke by straps (18, 19) running around the side edges of the upper magnetic layer. Outside the region of the yoke these conductor straps are wider and are superposed one on the other, with an insulating layer between them, for lower resistance loss (see lower part of figure).

Thin-film multitrack magnetic head of high track density

To simplify a field plate effect speed and position sensor, particularly for association with the starter gear of an automotive-type internal combustion engine, four meander-arranged permalloy resistance tracks are located on a substrate at the corners of a rectangle, spaced, in circumferential direction, by about half the pitch distance of the teeth (2) of the starter gear. The resistances can be connected in a voltage divider (FIG. 4) configuration, or in form of a bridge circuit (FIG. 5) supplied from a constant current source (CC) to eliminate temperature variation affects, and providing alternating current output voltages within the wide range of temperature of essentially uniform level as the teeth (2) scan the sensor, a special marker tooth (10) providing an output signal of different level. Preferably, the resistances (5-8) are formed as meander-shaped thin film vapor deposited tracks on a silicon substrate (4), a permanent magnet (9) providing bias magnetization, the direction of which changes with respect to the orientation of the meander tracks--preferably 45.degree. with respect to the direction of rotation (11) to cause the resistance elements to either have high, or low resistances (FIG. 3).

Gear tooth position and speed sensor with four, bridge circuit

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Weinsberg, Germany

Karl-Franz Reinhart