Digitized GMR Magnetometer and Its Application to Multi-axis Sensor Integration

碩士 === 國立高雄應用科技大學 === 機械與精密工程研究所 === 103 === A digital GMR magnetic field measurement system was built utilizing software lock-in detection and USB data acquisition for sensor fusion with accelerometers. To detect the vector components of static magnetic field, AC modulation and voltage-to-field tra...

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Bibliographic Details
Main Authors: Bor-Lin Lai, 賴柏霖
Other Authors: Jen-Tzong Jeng
Format: Others
Language:zh-TW
Published: 2015
Online Access:http://ndltd.ncl.edu.tw/handle/4vnwcs
Description
Summary:碩士 === 國立高雄應用科技大學 === 機械與精密工程研究所 === 103 === A digital GMR magnetic field measurement system was built utilizing software lock-in detection and USB data acquisition for sensor fusion with accelerometers. To detect the vector components of static magnetic field, AC modulation and voltage-to-field transformation were done by the software in real time. The system can achieve the orthogonality for both magnetometers and accelerometers. The combined sensor system can detect the 3-axis rotation angles of pitch, yaw and roll, which is demonstrated by integration with a web camera to detect its motion.