提出采用二次流量脉冲转换方式对流量计的发讯脉冲进行计数补偿，确保大容量时精确发油。
Two-time flow pulse transition is put forward to compensate the pulse count, by this method the flow pulse is sum up to assure fill precisely in large volume.
应用振弦式传感器并基于脉冲计数法进行压力测量可达测量精度受脉冲计数精度、电路噪声及温度补偿等多重因素影响。
When using pulse counting method, the precision of pressure-measuring with vibrating-wire sensor is influenced by the precision of pulse counter, circuit noise, temperature compensation, etc.
介绍了调制域分析技术的原理，重点介绍基于FPGA的零空闲(ZDT)计数和测量补偿技术。
It introduces the project and key technology of modulation domain analysis, emphasis on the ZDT counter and the error compensation circuit based on FPGA.
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