【摘要】 设计了用于磁悬浮轴承系统中的差动变压器式位移传感器。从基本原理出发,结合磁轴承特点,提出了改进的传感器结构方案。利用线性差动变压器的专用芯片AD598作为传感器的测量电路。实验结果表明:所设计的传感器具有较好的性能:在-0.35~0.35mm测量范围内,线性度为±1.25%,灵敏度可高达23.77mV/μm,完全适用于磁悬浮轴承系统中。更多还原

【Abstract】 The differential transformer displacement sensor applying in active magnetic bearings is designed.Based on the principle and characteristic of active magnetic bearing,the improved project in structure for the sensor is presented.The linear variable differential transformer (LVDT) signal conditioner AD598 is used as measuring circuit for the sensor.The experiment concludes that the designed sensor has preferable performance:the linearity is±1.25% and sensitivity is 23.77mV/μm in the measuring range of -0.35~0.35mm.It is suitable to active magnetic bearing.更多还原