| 摘要 |
FIELD: measurement technology. ^ SUBSTANCE: measurement chambers of measuring aid are filled with manometric fluid. Pressure difference from different density manometric fluids' column heights and working pressure are applied to measurement chambers. Error of change in working excess pressure within pressure difference measurement range is determined. Device has vessels filled with manometric fluids of different densities and chokes for connecting measuring aid with working excess operating pressure. Vessels and chokes are disposed onto rotary frame made for mounting at angle to horizon. Different density manometric fluids interfaces are disposed in horizontal parts of vessels made in form of capillaries. Metrological characteristics of aids for measuring pressure difference can be defined more exact due to reproduction of measuring aid during process of verification. ^ EFFECT: increased precision. ^ 2 cl, 2 dwg
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