Abstract
We have derived an equation of thermal perturbations by deduction from a physical model for deformation vacuum gauges with bellows as the elastic element. The model can be used to analyze the temperature zero drift of micropressure gauges, to divide the zero drift into components with regard to particular effects, and to eliminate or to diminish those effects. A zero drift of 0.1 Pa/K was obtained for a micropressure gauge rated at up to 1000 Pa (0.01 %/K). We have found that the temperature zero drift occurs mainly because with rising temperature the bellows expands to an anomalously large extent (1.5 to 2 times) along its axis as compared to the expansion of the alloy used to make the bellows.
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REFERENCES
J. H. Leck, Pressure Measurements in Vacuum Systems, 2nd edn., Chapman and Hall, London (1964).
V. V. Kuz’min, Vacuum Measurements [in Russian], Izd. Standartov, Moscow (1992).
I. A. Korolev et al., Izmer. Tekh., No. 9, 38 (2003).
E. M. Purcell, Electricity and Magnetism, McGraw-Hill, New York (1965).
V. I. Lukin et al., Inventor’s Certificate A. S. 1592746 SSSR, Otkryt. Izobret., No. 34 (1990).
V. G. Sorokin et al., Specifications of Steels and Alloys [in Russian], Mashinostroenie, Moscow (1989).
I. A. Korolev and A. G. Flyagin, Micromanometer for Measuring the Hydrogen Permeability of Membranes by the Isochoric Method: Information Materials, UrO AN SSSR (Ural Division of the Academy of Sciences of the USSR), 68 pp., Sverdlovsk (1989).
B. V. Molotilov (ed.), Handbook of Precision Alloys [in Russian], Metallurgiya, Moscow (1983).
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Translated from Izmeritel’naya Tekhnika, No.3, pp. 27–31, March, 2005.
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Korolev, I.A., Alekseenko, N.N. & Porodnov, B.T. Model of the Zero Drift of a Bellows Vacuum Gauge with an LC Oscillator and the Anomaly of the Axial Thermal Expansion of the Bellows. Meas Tech 48, 242–248 (2005). https://doi.org/10.1007/s11018-005-0131-z
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DOI: https://doi.org/10.1007/s11018-005-0131-z