A measuring device, measuring arrangement and a method for determining a measured quantity. The measuring device a sensor device, an evaluation device and an interface. The sensor device generates measurement information which is dependent on the measured quantity and the evaluation device determines a result value for the measured quantity. To devise a measuring device which manages with a limited power demand and storage demand and which also allows a complex evaluation for obtaining the result value for the measured quantity, the evaluation device of the measuring device outputs the measurement information or information dependent on it via the interface to a separate data device of the measuring arrangement, receives intermediate information from the data device which is generated depending on the measurement information or the information dependent on it and determines the result value based on the intermediate information.

In some embodiments, a method of correcting for errors in a rotational position sensor having a sine signal and a cosine signal is presented. The method includes compiling data from the sine signal and the cosine signal over a period of rotation of a motor shaft; determining offset correction parameters from the data; correcting the data with the offset correction parameters; determining amplitude difference parameters from the data; correcting the data with the amplitude difference parameters; determining phase difference parameters from the data; correcting the data with the phase difference parameters; and using the offset correction parameters, the amplitude difference parameters, and the phase difference parameters to correct the sine signal and the cosine signal.

The semiconductor device includes a Hall element, a first differential pair, a second differential pair, an output amplifier circuit, and a voltage divider circuit. The Hall element outputs a signal that is dependent on stress to be applied to a semiconductor substrate to the first differential pair. The voltage divider circuit divides a voltage into a divided voltage having a voltage dividing ratio that is dependent on the stress. The first differential pair outputs a first current based on the signal. The second differential pair outputs a second current based on the divided voltage and a reference voltage. The output amplifier circuit outputs a voltage based on the first and second currents. A gain of the output amplifier circuit is approximated by a sum of a difference between stress dependence coefficients of transconductances of the first and second differential pairs and a stress dependence coefficient of the voltage dividing ratio.

A method for operating a capacitive device. The method includes providing a pulsed readout signal having a pulse frequency at a readout signal channel, to which at least one capacitor unit of the capacitive device is electrically connected, and reading out the at least one capacitor unit of the capacitive device, which has a natural frequency with a natural frequency period duration t.sub.res, using the pulsed readout signal. Each voltage pulse of the pulsed readout signal is applied to the readout signal channel in n temporally offset voltage stages, n being a natural number greater than or equal to 2, and a time offset Δt.sub.i is maintained between each two consecutively applied voltage stages in such a way that the following is true for at least one time offset Δt.sub.i between the voltage stages:

[00001]$\Delta t_i=m*t_{\mathrm{res}}+\frac{t_{\mathrm{res}}}{n},$

m being a natural number greater than or equal to zero.

A method for operating a capacitive device. The method includes providing a pulsed readout signal having a pulse frequency at a readout signal channel, to which at least one capacitor unit of the capacitive device is electrically connected, and reading out the at least one capacitor unit of the capacitive device, which has a natural frequency with a natural frequency period duration t.sub.res, using the pulsed readout signal. Each voltage pulse of the pulsed readout signal is applied to the readout signal channel in n temporally offset voltage stages, n being a natural number greater than or equal to 2, and a time offset Δt.sub.i is maintained between each two consecutively applied voltage stages in such a way that the following is true for at least one time offset Δt.sub.i between the voltage stages:

[00001]$\Delta t_i=m*t_{\mathrm{res}}+\frac{t_{\mathrm{res}}}{n},$

m being a natural number greater than or equal to zero.

A sensor drive circuit for driving a sensor with a current includes a first current source configured to generate a first current having a temperature characteristic of which a first order coefficient is positive and of which a second order coefficient is negative. The sensor drive circuit includes a second current source configured to generate a second current having a temperature characteristic of which a first order coefficient is negative and of which a second order coefficient is negative. The sensor drive circuit includes a current amplifier configured to amplify a third current, the third current being set by adding the first current and the second current. The sensor drive circuit includes a constant current source configured to generate a temperature-corrected constant current, such that a drive current for the sensor is set by adding the constant current to the amplified third current.

Provided are embodiments including a method, system and computer program product for collecting aircraft performance data using smart applications. Some embodiments include receiving sensor data from one or more sensors of one or more user devices associated with an aircraft, and detecting an aircraft event of the aircraft based at least in part on the sensor data. Embodiments can also include analyzing performance of the aircraft by comparing the sensor data with historical data for the aircraft event responsive to detecting the aircraft event, and mapping the performance of the aircraft to the received sensor data.

An oscillator-based sensor interface circuit includes first and second input nodes arranged to receive first and second electrical signals representative of an electrical quantity, respectively; an analog filter; a first oscillator arranged to receive a first oscillator input signal and a second oscillator different from the first oscillator and arranged to receive a second oscillator input signal; a comparator arranged to compare signals coming from the first and second oscillators; a first feedback element arranged to receive a representation of the digital comparator output signal and to convert the representation into a first feedback signal to be applied to the oscillation means; a digital filter arranged to yield an output signal, being an filtered version of the digital comparator output signal; a second feedback element arranged to receive the output signal and to convert the output signal into a second feedback signal.

Angular position sensor system comprising: a cylindrical magnet rotatable about a rotation axis; and an angular position sensor device comprising: a substrate comprising a plurality of magnetic sensitive elements configured for measuring a first magnetic field component in a first direction and a second magnetic field component in a second direction perpendicular to the first direction; and a processing circuit configured for calculating the angular position; the sensor device being oriented such that the first direction is oriented in a circumferential direction, and the second direction is either parallel or orthogonal to the rotation axis; the sensor device being located at a predefined position where a magnitude of a third magnetic field component orthogonal to the first and second magnetic field component is negligible over the 360° angular range.

The problem to be overcome by the present disclosure is to reduce harmonic components included in output signals. A magnetic sensor includes a detecting magnetoresistance element and a canceling magnetoresistance element. A tilt angle formed by a magnetic sensing direction of the canceling magnetoresistance element with respect to a magnetic sensing direction of the detecting magnetoresistance element falls within a predetermined range. The predetermined range is defined by reference to either n×α/3 or n×α/3+α/2, where α is an angle of rotation of a rotator corresponding to one cycle of a fundamental harmonic included in output signals of the detecting magnetoresistance element and n is a natural number equal to or greater than 1.