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叙述了1种直管式科氏质量流量计的新型双管结构。它克服了以往采用双检测管结构存在2管特性不一致而引入附加误差的缺点和单管结构存在壳体振动引起阻尼误差的缺点。文中对新结构的原理和具体实现方法作了详细介绍，并且新的双管结构已被实现，取得了很好的性能。
A new double tube structure of a straight tube Coriolis mass flowmeter is described. The utility model overcomes the defect that the double detection tube structure has the inconsistent characteristics of the two tubes and introduces the additional error in the past, and the shortcoming that the single tube structure has the damping caused by the vibration of the shell body. In this paper, the new structure of the principle and the specific implementation methods were introduced in detail, and the new double-tube structure has been achieved, and achieved good performance.