Abstract
Using examples of their use in standard and working instruments for measuring mass flow rate and a variety of gas volume flow rates, it is shown that critical nozzles and, particularly the Laval nozzle, can occupy an important place in the system of metrological facilities for this form of measurement.
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REFERENCES
A. P. Gerasimov et al., Izmer. Tekh., No. 4, 40 (2005).
A. P. Gerasimov et al., Izmer. Tekh., No. 4, 44 (2005).
ISO 9300:1900 (E), Measurement of Gas Flow by Means of Critical Flow Venturi Nozzles.
MI 1538-86. GSI, Critical Flow Meters. Procedure for Measuring the Mass Flow Rate of a Gas.
State Standard GOST 8.369-79, The State Primary Standard and All-Union Checking Scheme for Instruments for Measuring the Mass Flow Rate of a Gas in the 4⋅10 −2 –2.5⋅10 2 kg/sec Range.
State Standard GOST 8.653.97. GSI, Measurement of Flow Rate and Quantity of Liquids and Gases by the Variable Pressure Drop Method. Diaphragms, ISA 1932 Nozzles and Venturi Tubes, Placed in Filled Pipelines of Circular Cross Section. Technical Conditions.
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Translated from Izmeritel’naya Tekhnika, No. 4, pp. 48–52, April, 2005.
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Gerasimov, A.P., Ivanov, V.P., Krasavin, V.M. et al. The Area of Application of Laval Nozzles in Flow-Rate Measurement Technique. Meas Tech 48, 381–387 (2005). https://doi.org/10.1007/s11018-005-0153-6
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DOI: https://doi.org/10.1007/s11018-005-0153-6