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YANG Zhi-qiang, HAO Zhi-jun, WANG Wei, ZENG Ji-jun, ZHANG Wei, LU Jian. Development of New High Accuracy PVT Measurement System[J]. Analysis and Testing Technology and Instruments, 2009, 15(4): 241-244.
Citation: YANG Zhi-qiang, HAO Zhi-jun, WANG Wei, ZENG Ji-jun, ZHANG Wei, LU Jian. Development of New High Accuracy PVT Measurement System[J]. Analysis and Testing Technology and Instruments, 2009, 15(4): 241-244.
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Development of New High Accuracy PVT Measurement System

    Abstract
  • A new experimental system of PVT measurement automatically controlled by a computer has been developed. The overall pressure and temperature uncertainty is about ±1.2 KPa, and ±5 mK, respectively. The vapor pressures of HFC-245fa were measured in the temperature range from 294 to 351 K with the new experimental system, and the experimental results indicated that the average deviation between experimental data and the equation provided in the literature was below 0.03%, and the standard deviation was below 0.484%. Which approved that the new experimental system is reliable.
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