A Novel Magnetic Linear Encoder Designed by Using the Slant Multi-Phase Filtering Model

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2004,（11）
• 页码范围: 2310-2312
• 页数: 3页
• 语种: 英文

摘要

A novel design model based on the slant multi-phase filtering model is presented. A magnetic linear encoder with sinusoidal output voltage waveform has been investigated, and the improved sinusoidal output waveform can be easily acquired. A minimum 6% of distortion factor, when the difference of slant phase is 2π/3, is observed. It is found that the Wheatstone bridge type sensor, made of NiFe(450A)/NiO(300A) bilayers deposited on Si (001)substrate, can enhance both output signal and thermal stability, and then can be widely used in the field of magneto-resistive sensor.