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A highly sensitive gas microflowmeter

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Abstract

The design of a gas microflowmeter with the following characteristics is described: the gas flowrate measurement range is ~0–3.0 mg/s; the average sensitivity in this range is 19 V/(mg s–1); the range of recorded voltages is 25–85 V; and the error is ~2%. It is shown that when a convective heat exchange in calculations of the Reynolds and Nusselt numbers is described, the radius must serve as the characteristic size of a sphere but not its diameter.

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References

  1. Rumyantsev, A.V. and Gus’kov, K.V., Measur. Techn., 2007, vol. 50, no. 8, p. 854.

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  2. Rumyantsev, A.V. and Blagonravov, L.A., RF Patent 2476828, 2013.

  3. Rumyantsev, A.V. and Gus’kov, K.V., Izmerit. Tekhn., 2012, no. 10, p. 41.

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  4. Rumyantsev, A.V., Universal’nye teplovye mikroraskhodomery gaza: (Universal Heat Gas Microflowmeters), Kaliningrad RGU, 2011.

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  5. Rumyantsev, A.V. and Kharyukov, V.G., Measur. Techn., 2011, no. 5, p. 524.

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Authors and Affiliations

  1. Immanuil Kant Baltic Federal University, Kaliningrad, 236041, Russia

    A. V. Rumyantsev & V. G. Kharjukov

Authors
  1. A. V. Rumyantsev
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  2. V. G. Kharjukov
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Corresponding author

Correspondence to A. V. Rumyantsev.

Additional information

Original Russian Text © A.V. Rumyantsev, V.G. Kharjukov, 2017, published in Pribory i Tekhnika Eksperimenta, 2017, No. 2, pp. 131–136.

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Rumyantsev, A.V., Kharjukov, V.G. A highly sensitive gas microflowmeter. Instrum Exp Tech 60, 278–283 (2017). https://doi.org/10.1134/S0020441217020130

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  • DOI: https://doi.org/10.1134/S0020441217020130

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