Dsm dsp frequency feedback controller is made of dsp shift frequency and dsp automatism digital filter. dsp software searches howl point and lock it by locale condition with no adjusting.
dsp数字移频反馈控制器，由dsp数字移频-dsp自动数字滤波器组成，根据现场环境dsp软件自动寻找啸叫点并锁定，无需人工调节。
So it has wide range of application. Programmable controller (PLC) is the system merging the advantages of computer and industrial control system and it has strong locale adaptability.
可编程序控制器（简称PLC） 是一种集计算机和工业控制系统优点于一身的控制装置， 具有很强的现场适应能力。
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