Abstract: The invention relates to a method for diagnosis of a sensor in a motor vehicle having an internal combustion engine, wherein during operation of the motor vehicle, an output signal of the sensor is monitored for whether a maximum value of the output signal undershoots a first threshold value and/or a minimum value of the output signal overshoots a second threshold value, and in that case a signal is forwarded to a controller that signals to the controller that the sensor, upon restarting of the motor vehicle, might be furnishing incorrect data.

Abstract: In the method and circuit arrangement for offset correction of the measurement bridge, the full bridge signal and half bridge signal of the measuring bridge are measured; a self-adjustment of the half bridge signal path to an output signal of the full bridge signal bath is performed to adjust the half bridge signal to the full bridge signal for each measurement cycle between turn on and turn off of the measurement bridge; and an offset value of the half bridge signal path is determined at a time of turning on and the offset value is kept constant during a given measurement cycle.

Abstract: In method and an arrangement for detecting parameters in displacement or angle sensors, in a test procedure sensor signals in a stationary sensor are evaluated, which signals are generated by scanning a plurality of code elements located side by side, perpendicular to a direction of motion, on a transducer element as a moving component; and the test procedure is performed with a transducer element that has a predetermined variation of geometrical variables of the code elements.

Abstract: The invention proposes a method for detecting the motion of an element relative to a sensor device, in which signals (7 to 15) are evaluated as a function of a pulse generator (1) that is moved past the sensor (3, 4, 5). The signals (7, 8; 10, 11; 13, 14) of two sensor elements (4, 5) disposed next to each other in the movement direction are detected, wherein in order to detect vibrations perpendicular to the movement direction, the phase responses of the signals (7, 8; 10, 11; 13, 14) of the individual sensor elements (4, 5) and of the differential signals (9; 12; 15) of the individual sensor elements (4, 5) are evaluated as to whether all three signals are in phase.

Abstract: A method for detecting the motion of an element relative to a sensor arrangement is proposed, wherein switching signals (1) are evaluated as a function of a pulse transmitter passing in front of the sensor, and a switching hysteresis (H) is adapted in the evaluation as a function of the values of the switching signal (1). When the element moves below a predetermined limiting value (fGrenz), a relatively great switching hysteresis (Hyst0) is set, and when the limiting value (fGrenz) is exceeded, a reduced switching hysteresis (H1) is set.

Abstract: A measuring device for contactless detection of a ferromagnetic object, comprising at least one magnet; a magnetic field-sensitive element arranged so that an air gap is provided between the magnetic field-sensitive element and the ferromagnetic object; and a soft-magnetic component located between magnet and the magnetic field-sensitive element on a face of the magnet which points in a direction of the ferromagnetic object to be detected, said soft-magnetic component being formed as a cap-shaped element that has a recess that is open in a direction away from said magnetic field-sensitive element to house the magnet and an opening that is open in a direction of the magnetic field-sensitive element, to house the magnet and opening that is open in a direction of the magnetic field-sensitive element, the soft-magnetic component having a first side wall defining said recess and also having a portion which forms a second side wall defining said opening, said first side wall and said second side wall being in align

Abstract: A method for calibration of a sensor 1 is characterized in that the sensor 1 is arranged in a predetermined position, an equalizing unit 6 is connected to the sensor 1, data necessary for calibration are determined, and the determined calibration data are stored permanently in a storage medium 5.

Abstract: A method for detecting the motion of an element relative to a sensor arrangement is proposed, wherein switching signals (1) are evaluated as a function of a pulse transmitter passing in front of the sensor, and a switching hysteresis (H) is adapted in the evaluation as a function of the values of the switching signal (1). When the element moves below a predetermined limiting value (fGrenz), a relatively great switching hysteresis (Hyst0) is set, and when the limiting value (fGrenz) is exceeded, a reduced switching hysteresis (H1) is set.

Abstract: The method for correction of evaluation of a switching threshold of a magnetic sensor arrangement includes evaluating switching edges of a transmitter signal produced by a moving transmitter element and generating a signal output when the switching edges exceed or fall below a default threshold value. Individual threshold values are determined for each switching edge during the course of a measurement cycle to correct the default threshold value. This occurs by determining respective maximum and minimum values for each switching edge and then averaging them to obtain an average value for each switching edge. Then the average values are stored in a non-volatile memory as individual threshold values for subsequent correction.

Abstract: The method for correction of evaluation of a switching threshold of a magnetic sensor arrangement includes evaluating switching edges of a transmitter signal produced by a moving transmitter element and generating a signal output when the switching edges exceed or fall below a default threshold value. Individual threshold values are determined for each switching edge during the course of a measurement cycle to correct the default threshold value. This occurs by determining respective maximum and minimum values for each switching edge and then averaging them to obtain an average value for each switching edge. Then the average values are stored in a non-volatile memory as individual threshold values for subsequent correction.

Abstract: In the method and circuit arrangement for offset correction of the measurement bridge, the full bridge signal and half bridge signal of the measuring bridge are measured; a self-adjustment of the half bridge signal path to an output signal of the full bridge signal bath is performed to adjust the half bridge signal to the full bridge signal for each measurement cycle between turn on and turn off of the measurement bridge; and an offset value of the half bridge signal path is determined at a time of turning on and the offset value is kept constant during a given measurement cycle.

Abstract: The method and circuit arrangement both minimize stray electromagnetic interference in an electronic circuit, in which symmetric measurement signals are evaluated. Both inputs (InP, InM) of an evaluation circuit (2) are provided with a bank of switchable capacitors (Cz) individually or in groups, which are connectable with the respective inputs. A predetermined interference signal is applied to the respective inputs (InP, InM) and individual ones or groups of the switchable capacitors (Cz) are selectively connected with the inputs (InP, InM) so that a maximum suppression of the predetermined interference signal can take place. Data regarding the capacitance values selected during the suppression of the predetermined interference signal is stored in the memory (3?) of a switching controller (3) during selective switching so that the same adjustment occurs automatically during subsequent operation cycles of the circuit arrangement.

Abstract: A method for detecting the motion of an element relative to a sensor apparatus is proposed, in which a detection of the direction of motion is performed. As a function of the direction of motion, a measurement signal is increased or decreased at predetermined measurement intervals, and only if a predetermined threshold value is exceeded is a direction-of-motion signal generated. Preferably, by means of a counting logic circuit (6), a counter is increased by a binary amount in one direction (2) and the counter (6) is decreased by a binary amount in the respective other direction (3). Upon a detection of measurement signals which as a result of being increased or decreased in a measurement interval do not lead to exceeding of the predetermined amount of the threshold value, vibration of the element is assumed.

Abstract: The invention proposes a method for detecting the motion of an element relative to a sensor device, in which signals (7 to 15) are evaluated as a function of a pulse generator (1) that is moved past the sensor (3, 4, 5). The signals (7, 8; 10, 11; 13, 14) of two sensor elements (4, 5) disposed next to each other in the movement direction are detected, wherein in order to detect vibrations perpendicular to the movement direction, the phase responses of the signals (7, 8; 10, 11; 13, 14) of the individual sensor elements (4, 5) and of the differential signals (9; 12; 15) of the individual sensor elements (4, 5) are evaluated as to whether all three signals are in phase.

Abstract: The present invention relates to an acceleration sensor including an oscillating structure which is movably suspended on a substrate and deflectable in response to the action of an acceleration, a plane of oscillation of the oscillating structure being essentially parallel to a substrate plane, and further including evaluation arrangements for measuring a deflection of the oscillating structure due to acceleration. In this context, provision is made for stop arrangements which limit a deflection movement of the oscillating structure in a direction essentially perpendicular to the plane of oscillation (x-, y-plane) of the oscillating structure.

Abstract: A method for calibration of a sensor 1 is characterized in that the sensor 1 is arranged in a predetermined position, an equalizing unit 6 is connected to the sensor 1, data necessary for calibration are determined, and the determined calibration data are stored permanently in a storage medium 5.

Abstract: The invention concerns a measuring device (1) for contactless detection of a ferromagnetic object (4, 5). The measuring device comprises a Hall element (3) and at least one permanent magnet (2), whereby an air gap (6) is located between the Hall element and the permanent magenet. Furthermore, the permanent magnet (2) has a soft-magnetic component (7) on at least one of its front faces that is located between the permanent magnet (2) and the Hall element (3).