微机电锁销的电磁驱动电路

Electromagnetic Driving Circuit for MEMS Locking Pin

迫弹引信的MEMS安全保险机构没有明显的旋转环境可用,而电发冲推器体积大,不适宜与微型化的MEMS结构配合应用。为此,对于新设计的82 mm迫弹引信安全系统的微机电锁销,提出了电磁驱动的驱动方式,设计了驱动电路。该机构不直接利用惯性力解保,而是应用传感器采集环境信息、主控芯片控制驱动电路带动电磁驱动器吸附锁销磁体,解除保险,并在滑块运动到位后,释放锁销,闭锁滑块。实验验证了其实际驱动能力和抗冲击性能。

For there was no obvious centrifugal force for mortar safe and arming system,and electric thruster was too large to match MEMS devices,an electromagnetic driving circuit was designed and applied to drive the locking pin of 82 mm mortar MEMS safe and arming device.The device did not use inertial force directly,but collected environmental information by sensors,then the driving circuit which was controlled by the main chip send driving signals to electrify the electromagnetic coil and arm the fuze,when the slider get to the position,the latch was released,then the slider was locked.The test result indicated that the electromagnetic coil could be driven successfully,and impact resistance tests were also carried out.