MEMS magnetic field sensor | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-10-04

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/MEMS_magnetic_field_sensor


00:00:35 1 Magnetic field sensing
00:02:12 1.1 Figures of merit of MEMS magnetic sensor
00:04:07 1.2 Advantages of MEMS-based sensors
00:04:52 2 Lorentz-force-based MEMS sensor
00:05:47 2.1 Voltage sensing
00:08:37 2.2 Frequency shift sensing
00:10:20 2.3 Optical sensing
00:10:31 3 Temperature effects
00:11:41 4 Applications
00:12:41 4.1 Detect flaws of electrically conductive material
00:12:50 4.2 Monitoring health of organs of thoracic cavity
00:13:52 5 References



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SUMMARY
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A MEMS magnetic field sensor is a small-scale microelectromechanical systems (MEMS) device for detecting and measuring magnetic fields (Magnetometer). Many of these operate by detecting effects of the Lorentz force: a change in voltage or resonant frequency may be measured electronically, or a mechanical displacement may be measured optically. Compensation for temperature effects is necessary. Its use as a miniaturized compass may be one such simple example application.