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本文概要介绍中国计量科学研究院于1986年建立的国家气压基准器的原理、结构和性能。它的测量范围为0～120kPa,测量的总不确定度(3δ)为2PPm。
This article provides an overview of the principles, structure, and performance of a National Compass developed by the China Institute of Metrology in 1986. Its measuring range is 0 ~ 120kPa, the total uncertainty of measurement (3δ) is 2PPm.