摘要
为了提高螺管式电磁阀的开关响应速度,将永磁体置于电磁阀的磁路中,提供偏置磁场,可以降低电磁阀的有效磁导率,减小磁路电感,提高响应能力.通过有限元仿真的方法对该设计方案进行了验证,结果表明:采用偏置磁场的电磁阀磁路结构简单,响应性能突出,有利于推力器的脉冲工作性能提升,能够满足未来卫星平台精确控制的要求.
By means of putting permanent-magnet into solenoid valve＇ s magnetic circuit, a pre-bias mag- netic field can be produced in the circuit to get a faster response speed,which is helpful for reducing ef-fective permeability and induction. This design is validated by finite element simulation. With simple structure and fast response speed,the high speed solenoid valve based on magnet pre-bias can improve the impulse performance of bipropellant thruster,and meet the challenge of accurate control for the satellite in future.
出处
《空间控制技术与应用》
2013年第4期59-62,共4页
Aerospace Control and Application
基金
十二五装备预先研究资助项目(513200602)
关键词
永磁偏置磁场
电感
有效磁导率
响应时间
电磁阀
magnet pre-bias
induction
effective permeability
response time
solenoid valve
