A sensor device for a rolling path insert of a track guide can be loaded by rolling bodies and is pressure-sensitive. The sensor device includes at least one tuple, extending in a rolling direction, of a number of sensors, which can each be signal-connected or are signal-connected to an evaluation device, by means of which a relevant difference signal can be determined from sensor signals of sensor pairs of the at least one tuple. The sensor device can be included in a rolling path insert, a guide carriage and a guide rail for a track guide, and a track guide.

A magnetic sensor integrated circuit includes a rectifier circuit, a magnetic field detection circuit, and a timing controller. The rectifier circuit converts an external power into a DC power. The magnetic field detection circuit senses a polarity of an external magnetic field and outputting a magnetic detection signal; and the magnetic field detection circuit includes a first chopping switch, a first amplifier unit and a switched capacitor filter module. The timing controller outputs a first clock signal to the first chopping switch and the first amplifier unit, and a second clock signal delayed for the first clock signal with a first predetermined time to the switched capacitor filter module.

An apparatus configured to reduce an offset of a Hall sensor includes a voltage-current conversion circuit and a current mirror circuit. The voltage-current conversion circuit is configured to generate a current configured to decrease when a voltage of an input terminal to which a bias current of a Hall sensor is input increases and increase when the voltage of the input terminal decreases. The current mirror circuit has a current mirror structure configured to feedback the bias current based on the current generated by the voltage-current conversion circuit.

An applied voltage control device is used for a sensor, in which a direct current corresponding to an oxygen amount flows when a DC voltage is applied to the sensor, and an alternating current corresponding to a sensor impedance flows when an AC voltage is applied to the sensor. The applied voltage control device includes: a filtering unit that sets a cutoff frequency of the AC voltage applied to the sensor variable.

Disclosed is a sensor assembly comprising: a first mounting device for mounting the sensor assembly to a first fixation part; a second mounting device for mounting the sensor assembly to a second fixation part, the second fixation part being displaceable relative to the first fixation part; and a sensor device arranged in a sensor cavity for provision of a sensor signal, the sensor device comprising a first attachment part attached to the first mounting device, a second attachment part attached to the second mounting device, and a sensing part, the sensing part being arranged between the first attachment part and the second attachment part.

A position sensor system includes a magnetic source for generating a magnetic field, and a position sensor device movable relative to the magnetic source, or vice versa. The position sensor device comprises at least three magnetic sensor elements for measuring at least three magnetic field values of the magnetic field, and a processing circuit configured for determining at least two magnetic field gradients or magnetic field differences based on the at least three magnetic field values, and for deriving from the at least two magnetic field gradients or differences a first value indicative of a position of the position sensor device, and for deriving from the at least two magnetic field gradients or differences a second value indicative of integrity of the position sensor system.

The invention relates to a magnetic linear or rotary encoder (1) for monitoring the motion of a body, comprising: an exciting unit (8), which reproduces said motion and has at least one pair of primary permanent magnets (16, 17), which are arranged opposite one another and are magnetically connected to one another by means of a ferromagnetic yoke body (9) and form a measurement field space therebetween; a fine-resolution sensor unit (29; 29′), which is used to determine a fine position value, is arranged in a stationary manner and has a plurality of magnetic field sensors (25, 26, 27, 28); and processing electronics, which evaluate the signals of the fine-resolution sensor unit and have a data memory. Said magnetic linear or rotary encoder is characterised in that a ferromagnetic deflecting body (18) is provided, which deflects at least some of the magnetic field lines of the magnetic field produced by the primary permanent magnets in a direction perpendicular to the magnetisation vector of the primary permanent magnets, that the fine-resolution sensor unit is designed and arranged in such a way that the individual magnetic field sensors of the fine-resolution sensor unit are penetrated by the magnetic field lines deflected by the deflecting body by means of a perpendicular component, that at least the yoke body is made of a thermally treated, ferromagnetic material, and that the fine-resolution sensor unit does not contain a ferromagnetic component.

A circuit arrangement (1) for controlling an inductive displacement measurement sensor (2) is described. The displacement measurement sensor has a sensor coil (2), which is supplemented by means of a capacitor (C.sub.par) to form an oscillating circuit. In addition, the circuit arrangement has an oscillator (3) for generating an excitation signal (U.sub.Exciter), which excites the oscillating circuit to oscillate. The excitation signal (U.sub.Exciter) is superimposed with a DC voltage (U.sub.temp), the amplitude of which changes when the temperature of the sensor coil (2) changes. The sensor coil (2) is connected to a controllable resistor (R.sub.var). Furthermore, the circuit arrangement (1) has a comparator (4), which compares the DC voltage (U.sub.temp) with a reference voltage (U.sub.tref). On the basis of the result of the comparison, the comparator (4) outputs a control voltage (U.sub.r), which controls the controllable resistor (R.sub.var). In a further development of the circuit arrangement the control of the controllable resistor (R.sub.var) is designed in such a way that when the temperature of the sensor coil (2) changes and, as a result, the ohmic resistance (R.sub.Sensor) of the sensor coil (2) also changes, the total resistance consisting of the sensor coil (R.sub.Sensor) and the controllable resistor (R.sub.var) is held essentially constant.

Embodiments of the present disclosure provide for dynamic iterative baseline adjustment. Such embodiments provide improvements to sensors requiring such adjustments, for example by better accounting for baseline drift and/or other baseline inaccuracies of a sensor. In one example context, a gas sensor is provided that performs such dynamic iterative baseline adjustment to better calibrate the output value of the gas sensor. Some embodiments include determining a set of measured values comprises a number of low-point measured values that exceeds a baseline updating threshold, determining an updated baseline value set, for example by determining an average low-point measured value for each baseline factor interval of a set of baseline factor intervals, and updating the baseline value set to the updated baseline value set, and optionally performing a corrective baseline algorithm on the updated baseline value set. The updated baseline value set may be utilized to correct subsequently measured raw data values.

A method for determining a measurement signal based on a sensor output electrical signal. The electrical signal based on the measured quantity conversion of the electrical signal into a measurement signal. Determining the measurement signal for least two pairs of values by converting the electrical signal into a measurement signal for at least two predetermined electrical signal values, each pair of values including the electrical signal and measurement signal. A mathematical function allowing a measurement signal to be obtained based on the electrical signal is determined based on the pairs of values. The measurement signal being substantially equal to the measurement signal obtained by applying the sensor conversion to the same sensor electrical signal. At least two measurement signals are determined without sensor conversion. Acquisition of the two measurement signals separated by a time shorter than the time to convert an electrical signal into a measurement signal by sensor conversion.