G01D18/00

Calibration of Sine-Cosine Coil Mismatches in Inductive Sensors
20230236046 · 2023-07-27 · ·

An apparatus includes a sampling circuit to sample input from a sensor circuit. The input includes a cosine coil waveform and a sine coil waveform. The sampling circuit is to generate a cosine coil sampled data stream and a sine coil sampled data stream. The apparatus includes an adjustment circuit to, based upon a characterization of the sensor circuit, delay the cosine coil sampled data stream or the sine coil sampled data stream.

Optical encoder with alignable relative positions between elements and position alignment method thereof
11566922 · 2023-01-31 · ·

There is provided an optical encoder with alignable relative positions between elements including an encoding medium, a sensor package and a memory. The sensor package includes a photodiode array and two alignment photodiodes opposite to the encoding medium. The memory records an alignment pattern associated with output signals of the two alignment photodiodes when the encoding medium and the sensor package are at nominal operating positions. When the encoding medium and the sensor package are not at the nominal operating positions, the relative position alignment is performed by adjusting current relative positions between the encoding medium and the sensor package to cause a current pattern associated with output signals of the two alignment photodiodes to be identical to the alignment pattern.

Optical encoder with alignable relative positions between elements and position alignment method thereof
11566922 · 2023-01-31 · ·

There is provided an optical encoder with alignable relative positions between elements including an encoding medium, a sensor package and a memory. The sensor package includes a photodiode array and two alignment photodiodes opposite to the encoding medium. The memory records an alignment pattern associated with output signals of the two alignment photodiodes when the encoding medium and the sensor package are at nominal operating positions. When the encoding medium and the sensor package are not at the nominal operating positions, the relative position alignment is performed by adjusting current relative positions between the encoding medium and the sensor package to cause a current pattern associated with output signals of the two alignment photodiodes to be identical to the alignment pattern.

Checking Apparatus for Checking a Number of Start Cycles of a Detection Device of a Motor Vehicle, and Method
20230023763 · 2023-01-26 ·

A checking apparatus for checking a number of start-up cycles of a detection device of a motor vehicle includes an electrical switching device for providing an electrical sensor supply for the detection device and includes a contact device for electrically contacting the electrical switching device with the detection device. The electrical switching device has a comparator circuit and, by way of the comparator circuit, a continuous wake up test of the detection device is carried out and thus the number of start cycles is checked.

SENSOR CALIBRATION ARRANGEMENT, DEVICE AND METHOD THEREOF
20230023492 · 2023-01-26 ·

An arrangement for sensor node calibration, including a calibration chamber including or being connected to a unit to facilitate control of at least one calibration quantity or attribute in the calibration chamber, a reference measuring unit arranged to measure at least one calibration quantity or attribute inside the calibration chamber, and a computing unit arranged to obtain from at least one sensor node sensor node identifier (ID) information, sensor node measurement information, wherein the computing unit is arranged to identify a sensor node based on sensor node ID information received from the sensor node, obtain measurement information the identified 0sensor node, obtain calibration quantity or attribute measurement in-formation from the reference measuring unit, and compare calibration quantity or attribute measurement information with sensor node measurement information. Corresponding device and method are also disclosed.

SENSOR CALIBRATION ARRANGEMENT, DEVICE AND METHOD THEREOF
20230023492 · 2023-01-26 ·

An arrangement for sensor node calibration, including a calibration chamber including or being connected to a unit to facilitate control of at least one calibration quantity or attribute in the calibration chamber, a reference measuring unit arranged to measure at least one calibration quantity or attribute inside the calibration chamber, and a computing unit arranged to obtain from at least one sensor node sensor node identifier (ID) information, sensor node measurement information, wherein the computing unit is arranged to identify a sensor node based on sensor node ID information received from the sensor node, obtain measurement information the identified 0sensor node, obtain calibration quantity or attribute measurement in-formation from the reference measuring unit, and compare calibration quantity or attribute measurement information with sensor node measurement information. Corresponding device and method are also disclosed.

ILLUMINATED VEHICLE SENSOR CALIBRATION TARGET
20230228601 · 2023-07-20 ·

An illuminated sensor target includes a light source. Actuating the light source illuminates the sensor target. The illuminated sensor target is recognized by one or more sensors of a vehicle during a calibration process, and is used to calibrate the one or more sensors of the vehicle during the calibration process. The illuminated sensor target is illuminated during at least part of the calibration process, which may involve rotation of the vehicle about a turntable, with the illuminated sensor target positioned within a range of the turntable along with other sensors targets, which may also be illuminated.

Systems and methods for thermally regulating sensor operation
11703522 · 2023-07-18 · ·

A thermal regulation system includes a sensor, one or more temperature adjusting devices, and a filler provided in a space between the sensor and at least one of the one or more temperature adjusting devices. The one or more temperature adjusting devices are (1) in thermal communication with the sensor, and (2) configured to adjust a temperature of the sensor from an initial temperature to a predetermined temperature at a rate of temperature change that meets or exceeds a threshold value.

METHOD FOR CALIBRATING A VEHICLE STEERING WHEEL MEASURING DEVICE
20230221152 · 2023-07-13 ·

A method for calibrating a measuring device for a vehicle steering wheel, the measuring device comprising a detection sensor, and an acquisition unit, the calibrating method comprising the steps of: placing the vehicle steering wheel with the on-board detection sensor in a reference environment, carrying out a reference measurement, recording the level of the reference signal and/or adjusting and recording at least one initial threshold to be used by the electronic control unit to initiate a driver assistance action, depending on the level of the measured reference signal and/or recording a difference between the level of the reference signal and the initial threshold.

METHOD FOR CALIBRATING A VEHICLE STEERING WHEEL MEASURING DEVICE
20230221152 · 2023-07-13 ·

A method for calibrating a measuring device for a vehicle steering wheel, the measuring device comprising a detection sensor, and an acquisition unit, the calibrating method comprising the steps of: placing the vehicle steering wheel with the on-board detection sensor in a reference environment, carrying out a reference measurement, recording the level of the reference signal and/or adjusting and recording at least one initial threshold to be used by the electronic control unit to initiate a driver assistance action, depending on the level of the measured reference signal and/or recording a difference between the level of the reference signal and the initial threshold.