地磁场对焊枪高度跟踪的影响及减小方法 - 中南大学学报（自然科学版、英文版） 关键字: 焊接;地磁场;弱磁传感器;焊枪悬浮高[gap=1353]Key words: welding; geomagnetic field; GMR-sensor; weld-gun altitude-tracking
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GMR read sensor 读传感器
The experiment result shows that the measuring system with GMR sensor has the advantage of high accuracy, wide measurement range, and distant measurement.
实验结果表明，采用巨磁阻传感器的转速测量系统具有准确度高、测量范围宽、测量间距大等优点。
Compared with conventional sensors, giant magneto resistive (GMR) sensor has the advantage of high sensitivity, high reliability, wide measurement range, small volume and low price.
与传统的磁敏传感器比较，巨磁阻传感器具有灵敏度高、可靠性好、测量范围宽、体积小、价格低等优点。
Principle of GMR sensor and its output characteristics are presented.
介绍了巨磁阻传感器的工作原理和输出特性。
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