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Efficient Testing Of Magnetometer Sensor Assemblies

A technology of sensor components and sensors, which is applied in three-component magnetometers, the magnitude/direction of magnetic fields, instruments, etc., and can solve problems such as low sensitivity and performance

Inactive Publication Date: 2017-04-12
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, to date, testing the sensitivity performance of such magnetometer components has been inefficient

Method used

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  • Efficient Testing Of Magnetometer Sensor Assemblies
  • Efficient Testing Of Magnetometer Sensor Assemblies
  • Efficient Testing Of Magnetometer Sensor Assemblies

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Embodiment Construction

[0021]Systems, methods, and computer-readable media for efficiently testing sensor assemblies can be provided. A test station of a plant subsystem operable to test any suitable three-axis sensor assembly (e.g., a three-axis magnetometer sensor assembly), which may include a first sensor having a magnetic field sensitivity along a first sensor axis module, a second sensor module having magnetic field sensitivity along a second sensor axis perpendicular to the first sensor axis, and a second sensor module having magnetic field sensitivity along a third sensor axis perpendicular to both the first sensor axis and the second sensor axis A third sensor module. The test station is operable to hold the sensor assembly in each of three different test orientations relative to the electromagnet axis (e.g., between two electromagnets of the electromagnet pair), wherein along the electromagnet axis, different fields can be applied in different directions by the test station. At each part...

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Abstract

The present invention relates to the efficient testing of magnetometer sensor assemblies. Systems, methods, and a computer-readable media for efficiently testing sensor assemblies are provided. A test station may be operative to test a three-axis magnetometer sensor assembly by holding the assembly at each one of three test orientations with respect to an electromagnet axis. At each particular test orientation for each particular sensor axis, a difference may be determined between any magnetic field sensed by that sensor axis during the application of a first magnetic field along the electromagnet axis and any magnetic field sensed by that sensor axis during the application of a second magnetic field along the electromagnet axis. Those determined differences may be leveraged with the magnitudes of the first and second magnetic fields and the vector component of the electromagnet axis on each one of the sensor axes at each one of the test orientations to determine the sensitivity performances for each one of the sensor axes.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of previously filed US Provisional Patent Application No. 62 / 235463, filed September 30, 2015, which is hereby incorporated by reference in its entirety. technical field [0003] The present disclosure relates to systems, methods, and computer-readable media for efficiently testing sensor assemblies, and more particularly to systems, methods, and computer-readable media for efficiently testing the sensitivity performance of magnetometer sensor assemblies within consumer electronics devices . Background technique [0004] Electronic devices (eg, laptop computers, cell phones, etc.) may be provided with a magnetometer assembly for measuring the magnetic properties of the device's environment. However, testing the sensitivity performance of such magnetometer components has been inefficient to date. Contents of the invention [0005] Systems, methods, and computer-readable media for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
CPCG01R35/00G01R33/0017G01R33/0206G01R35/005
Inventor 郭建
Owner APPLE INC