In order to satisfy the flow measurement precision for big-pipe,multi-paths ultrasonic flow measurement system based FPGA(Field Programmable Gate Array) and phase lock loop(PLL) was developed.

 
  • 為了滿(mǎn)足大管徑流量的測量精度,研制了基于現場(chǎng)可編程門(mén)陣列器件FPGA和鎖相環(huán)路的多聲路超聲波流量測量系統。
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