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修改时间 04-21-2017 05:57 AM
近来有个小案子:有刹车功能的DC-FAN,需要验证当风扇断电时到转速降为0rmp时,所需时间是否满足规格要求(2S)
现在计划用感应器测转速,然后用labview读取,请教如何计算从source断电到感应器测得转速为0所需的实际时间?
THANKS!
修改时间 05-21-2017 09:07 AM
通过反电势,然后测量反电势波形的时间
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