Dischargemonitoring is the core of unit energy paramers monitoring which is carried out by pressure differential method. Practice reveal method.

流量监测是机组动能参数监测的核心，有关单位采用差压法进行过水流量在线监测，并研制了差压微机型流量装置。

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The precision of liquid column manometer was described. The correct use method and error correction of U tube manometer and double tube differential pressure gauge were analysed.

叙述了液柱式压力计的精度，对U形管压力计和双管差压计的正确使用方法及误差修正做了简要分析。

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The zero and linearity characteristic of differential pressure transducer is corrected with method of water column correction to ensure higher precision differential pressure data.

采用水柱校正法对差压传感器的零点及线性特性进行校正以保证高精度的差压数据。

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