【摘要】 在分析影响调幅式传感器测量电路精度因素的基础上 ,提出利用数字合成技术、自稳幅技术、数字式相敏检波技术、数字集合平均技术等措施 ,来改善调幅式传感器测量电路的检测精度。实验表明利用该技术 ,使调幅式电感传感器测量电路达到纳米精度的稳定度更多还原

【Abstract】 On the basis of the analysis of various factors affecting the precision of amplitude modulation measurement circuit of inductance sensor,it is presented that improving its precision by using digital synthesizing,self fixed amplitude,digital phase sensitivity detection,digital set average technique and so on.It is testified by the experiments that employing these techniques the circuit design is simplified,the reliability is improved and the stability in the amplitude modulation measurement circuit of inductance sensor may reach nanometre level.更多还原