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《Atural Gas Industry》 1993-01
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Additional Calculation Error Measured with Dual Bellows Differential Flowmeter

Wu Zengwei Yang Shumin  
The additional calculation error of measuring gas flow capacity through planimeter calculating av- erage value between differential pressure and static pressure with dual bellows differential pressure flow capacity table is discugsed in this paper. In various situations between differential pressure and static pressure, the size and direction of additional calculation error are also analysed, and improvement and prevention proposals are put forward.
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