摘要
本文给出了在3种励磁电流(I_n=0.2A,0.6A,1.0A)情况下,螺线管中温度与通电时间的关系曲线,以及霍尔电压V_H随时间t变化的关系曲线。结果表明在较大励磁电流时。10分钟的预热时间是十分必要的,之后霍尔电压趋于稳定。
The curves of the relationships between temperature and time in spirals and between Hall voltage and time under three different exciting currents(I_m=0.2A, 0.6A and 1.0A)are given in this paper. The result shows that ten-minute preheating is necessary when higher exciting currents are used and after that the Hall voltage tends to approach a stable value.
出处
《石家庄铁道学院学报》
1992年第2期96-98,共3页
Journal of Shijiazhuang Railway Institute
关键词
霍尔电压
励磁电流
热效应
测量
Hall voltage
exciting current
calorific effect
