【摘要】 波前校正器是自适应光学系统中的关键部件之一 ,制作困难 ,且在加电压不当时容易损坏。本文阐述了波前校正器的过压损坏机理 ,提出了利用分压网络避免波前校正器过压损坏的方案 ,介绍了基于可编程 ASIC的过压保护电路的实现。此电路经测试 ,取得了较满意的结果。更多还原

【Abstract】 The wavefront corrector is one of the key parts of an adaptive optical system.It is difficult to fabricate and is easy to damage if an improper voltage is applied.The overvoltage damage mechanism for the wavefront corrector is described and a scheme for avoiding overvoltage damage of the wavefront corrector with voltage dividing network is proposed.The implementation of an overvoltage protective circuit based on programmable ASIC is introduced.The testing shows that the circuit has achieved a satisfied result.更多还原