搜索 - 科创

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推进剂燃烧完后，延时剂继续燃烧拉出一条淡淡的烟迹，中间稍上的白点为火箭中间下方的两个点为开伞药打开的头锥和箭体．由于事前三次地面测试发动机和计算飞行时间，调好了延时剂长度，由烟迹可以看到开伞时正好在抛物线最高点开伞成功开伞

6n137是High Speed 10MBit/s Logic Gate Optocouplers延时13ns左右。。基本可以忽略。。照理说上300k还是可以接受的。。在往上可能就不太好看了。。

名HGTG30N60B3耐压600v 常态电流60A 浪涌电流220A同50UD左侧30n60b3 右侧50ud开启延时36ns 46ns 上升延时25ns 25ns 关锻延时137ns 140ns下降延时

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