Provided herein is a system and method for determining whether a sensor is calibrated and recalibrating of an uncalibrated sensor. The system comprises a sensor system comprising a sensor and an analysis engine configured to determine whether the sensor is uncalibrated. The system further comprises an error handling system configured to determine whether to perform a recalibration in response to the sensor system determining that the sensor is uncalibrated. The error handling system further comprises a recalibration engine configured to perform a recalibration.

A method of detecting a vibration comprises determining a vibration flag has been set during a running mode of the magnetic field sensor, remaining in the running mode until a predetermined number of vibration flags have been set, and entering a recalibration mode when the predetermined number of vibration flags have been set. A counter can be implemented for each of the plurality of vibration flags to determine if the predetermined number of vibration flags have been set.

Meters including a pressure regulating systems are provided. The pressure regulating system includes a pressure sensor configured to sense pressure of water flowing through the meter; an actuator coupled to the pressure sensor; an electronics module configured to receive pressure information related sensed pressure from the actuator and process the received pressure information; and a radio module coupled to the meter and configured to receive the processed sensor information from the electronics module, communicate the processed sensor information to a remote location and receive pressure adjustment information from the remote location. The received pressure adjustment information is used to adjust water pressure in the meter from the remote location.

A method for setting a gain of a magnetic field sensor includes providing the magnetic field sensor and an evaluation unit on a same printed circuit board, generating a magnetic field signal with the magnetic field sensor, transmitting the magnetic field signal to the evaluation unit, evaluating the magnetic field signal with the evaluation unit, and transmitting a signal for setting the gain from the evaluation unit to the magnetic field sensor. In an example embodiment, the magnetic field sensor is a rotor position sensor of an electric motor.

A system automatically calibrates gains and/or offsets for each position feedback signal in order to reduce variations between position feedback signals for each sensor in a linear drive system. As a mover travels along a track segment, the segment controller records the position feedback signal output from each position sensor corresponding to a magnet on the mover passing the position sensor. The segment controller periodically monitors the position feedback values generated by one mover as it travels along the track segment and automatically updates the sensor gains as a function of a ratio of a target peak value to a measured peak value of the position feedback signal. The segment controller also records the position feedback signal from each sensor when no mover is traveling past the sensor. The segment controller periodically monitors the position feedback values received when no mover is present and automatically updates sensor offset values.

The concept described herein relates to a device and a method for determining the transfer function of an angle sensor in the course of operation. For this purpose, a sequence of angle output signals of the angle sensor is received during at least one time interval in which the angle sensor is exposed to a rotating magnetic field. Furthermore, the transfer function of the angle sensor is determined on the basis of the sequence of angle output signals. The method can be carried out during regular operation of the angle sensor.

A method for in-situ calibration of an analog measurement transmission path coupled with the determining and/or monitoring of a process variable of a medium is disclosed, wherein analog electrical signals are transmitted via the measurement transmission path from a control/evaluation unit to a control unit, wherein the control/evaluation unit is associated with a sensor, which determines and/or monitors the process variable based on at least one component sensitive for the process variable. The sensor is operated either in a measuring mode or in a simulation mode, wherein, in the simulation mode, the control/evaluation unit outputs for a set time span an analog electrical signal, which is unequivocally recognizable as simulated and is recognized and registered by control unit, and the calibrating of the measurement transmission path is performed, in that the control unit determines the deviation between the analog electrical signal and the registered analog electrical signal.

A system to automatically calibrate gains and/or offsets for each position feedback signal in order to reduce variations between position feedback signals for each sensor in a linear drive system is disclosed. As a mover travels along a track segment, the segment controller records the position feedback signal output from each position sensor corresponding to a magnet on the mover passing the position sensor. The segment controller determines peak values for each position feedback signal and compares the peak values against a target peak value. The segment controller then adjusts a gain value for each sensor by a ratio of the target peak value to a measured peak value. The segment controller periodically monitors the position feedback values generated by one mover as it travels along the track segment and automatically updates the sensor gains as previously described.

Recalibrating a micromechanical sensor. The sensor is assigned a signal processing device for correcting the sensor signal on the basis of at least one previously determined initial trim value that is selected such that, given a defined sensor excitation, a production-related deviation of the sensor signal from a target sensor signal is compensated. The method for recalibrating the sensor includes: applying a defined electrical test excitation signal to the sensor structure, acquiring the corresponding sensor response signal, ascertaining a trim correction value for the at least one initial trim value on the basis of a previously determined relation between the sensor response signal and the trim correction value, and determining at least one current trim value for correcting the sensor signal, the determination of the at least one current trim value taking place on the basis of the at least one initial trim value and the ascertained trim correction value.

A method of determining a calibration or maintenance time interval after which a specific measurement device of a given type for measuring a quantity to be measured on a measurement site of an industrial site shall be re-calibrated or maintained is described, comprising the steps of: determining a criticality (C) of the specific device, based on the criticality (C) setting a reliability target (RT) for the device, wherein the reliability target (RT) denominates the probability of the device to be compliant according to a predefined criterion at the end of the calibration or maintenance time interval to be determined by this method, defining compliancy ranges for a measurable degree of compliance of the device, selecting a reliability model for a reliability of the device as a function of a normalized time interval (t.sub.n) and a set of at least one parameter (c1, . . . , c.sub.m) from a variety of predefined reliability models, determining a separate set of parameters for the selected reliability model for each of the compliancy ranges based on prescribed reliability expectation values (RV(t.sub.n.sup.pd)) for each of the error ranges, which a reliability function associated with this error range shall comply to at at least one predefined normalized time (t.sub.n.sup.pd), determining the degree of compliance of the specific measurement device and based on the degree of compliance determining the corresponding compliancy range, determining a normalized calibration or maintenance time (t.sub.n) as the time, at which a reliability function (R(t.sub.n)) given by the selected reliability model and the set of parameters determined for this compliancy range equals the reliability target (RT), and determining the next calibration or maintenance time interval based on a product of this normalized calibration or maintenance time (t.sub.n) and a given reference time interval (T.sub.R).