开关量输出型传感器电气保护装置的研制

Development of an Electric Protective Device for the Sensor of Switch - Output Type

本文以三线制ＮＰＮ式开关量输出型传感器为例，介绍了传感器的负载驱动单元的结构特点及驱动方式。针对工程使用中经常出现的故障，研制了相应的电气保护装置。

Taking a sensor of switch - output type NPN for example, its structural characteristic of the load driving unit and the driving pattern is introduced in this paper. The electric protective device for the sensor is developed in view of ordinary faults in use.