A new signal processing circuit of vortex flow meter based on variable gain amplifier and digital signal processor (DSP) unit is designed.

设计一种基于变增益运算放大器和DSP数字信号处理单元的新型涡街流量计信号处理电路。

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Because of the request of accuracy and the performance of real time, this ultrasonic flow meter USES the special data processing chip and digital phase technology.

由于流量计对测量系统的精确性和实时性要求较高，所以采用专门的数据处理芯片和数字鉴相技术。

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Constant flow rate manually adjustable, proportional flow rate according to a digital input signal (from water meter), Power-ON led indicator and level control input. The two different modes are.

比例调节，可根据数字信号（比如水表发出的脉冲信号）来调节流量的比例，带有电源指示和液位探头接口，可直接连接液位探头控制计量泵启动或停止。

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