利用双时间法设计了用于检定脉冲型流量传感器仪表系数的检定仪。
By using dual timing method the calibrator for calibrating coefficient of instrument of pulsed flow transducer is designed.
采用钢尺精密检定的改进方法及钢尺实际线膨胀系数检测方法，加之自制的检定器具、设施，可较好地解决钢尺自身准确性问。
This problem could be well resolved by adopting improved steel tape precise test method and actual linear expansion coefficient, as well as self-made testing apparatus and tools.
在监测、检定过程中，流量计系数会发生一定变化，只能定性地看流量计系数的变化趋势。
In the process of monitoring and verification, meter coefficient will varies in some degree, we can only analyze the change tendency of flow coefficient qualitatively.
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