UNCERTAINTY ANALYSIS ON CONSTANT VOLUME FLOW STANDARD

TIAN Dong-xu, WEN Xin-hui, LÜ Shi-liang. UNCERTAINTY ANALYSIS ON CONSTANT VOLUME FLOW STANDARD[J]. VACUUM AND CRYOGENICS, 2000, 6(2): 118-122.

Citation:

TIAN Dong-xu, WEN Xin-hui, LÜ Shi-liang. UNCERTAINTY ANALYSIS ON CONSTANT VOLUME FLOW STANDARD[J]. VACUUM AND CRYOGENICS, 2000, 6(2): 118-122.

Citation:

TIAN Dong-xu, WEN Xin-hui, LÜ Shi-liang. UNCERTAINTY ANALYSIS ON CONSTANT VOLUME FLOW STANDARD[J]. VACUUM AND CRYOGENICS, 2000, 6(2): 118-122.

Abstract

The constant volume flow standard adopts the constant volume method.The standard can be used to calibrate thermal mass flow meters.The range ofthe standard is from 1×10^-3 to 10Pa·m³·s^-1 with uncertainty less than 1.2%.The uncertainty (1σ) of the standard is analyzed.

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