目前,机载电气设备及自象动控制装置中,广泛采用RC式晶体管时间继电器,由于介质吸收效应的存在,对于充电电路中积分电容器的起始电位有较大的影响,增加了延时时间误差。本文分析了这种误差的物理现象与估算方法,以及可以采取的补偿线路,文中介绍了有关介质吸收效应测试的初步结果。 At present, the RC-type transistor time relay is widely used in airborne electrical equipment and self-moving control devices. Due to the medium absorption effect, the starting potential of the integrating capacitor in the charging circuit has a greater impact, increasing the delay time error. This paper analyzes the physical phenomenon of this error and estimation method, as well as the compensation circuit that can be taken. The preliminary results about the absorption effect test of the medium are introduced in this paper.