本文利用增量式直线光栅尺位移传感器、方波四倍频及鉴向电路、热电偶传感器、压力传感器、研华ADAM4000系列工控I/O模块、PCI-1780多通道计数卡以及力控组态软件构建了直线电机的检测系统。该检测系统能够准确检测出直线电机的位移、拉力和推力及其绕组的多点温度值。文中对该检测系统的方案及其实现过程进行了详细的论述。关键词: 直线电机；增量式直线光栅尺；热电偶；力传感器Abstract: This paper presents a linear motor supervisory system. The supervisory systemconsists of the incremental linear encoder, square-wave forth-times frequency and identification direction circuit, thermocouple, ADAM4000 series industry control I/O modules, PCI-1780 multiple channel counter card and PCAuto configuration software. It can supervisethe displacement, pull or push force, winding multi-point temperature of the linear motor. The whole blue print and implementation process of the linear motor supervisory system are discussed in details in this paper.Key words: Linear motor, incremental linear encoder, thermocouple, force transducer