DOI 10.17586/0021-3454-2018-61-8-701-705
UDC 543.429.23
INFLUENCE OF THE GRADIENT OF THE MAGNETIC FIELD OF THE ION PUMP ON THE TRIAL BODY OF ABSOLUTE BALLISTIC GRAVIMETER
ITMO University, Saint Petersburg, 197101, Russian Federation; Professor, Scientific Secretary
A. A. Silaev
ITMO University, Department of Introscopy Technologies; Post-Graduate Student
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Abstract. Influence of magnetic field gradients on the test body of the absolute ballistic gravimeter ABGVNIIM-1 is considered. Based on the protocol for measuring the magnetic field in the working region and data on magnetic fields of the pump magnetic system of the gravimeter, gradient models are created. Using the finite elements method, deviation of measured value of free fall acceleration from the initial one is calculated. Recommendations for design of the test body and the whole instrument are formulated.
Keywords: absolute ballistic gravimeter, eddy currents, finite elements method, gravimetry, magnetic field gradient
References:
References:
- Niebauer T.M., Sasagawa G.S., Faller J.E. et al. Metrologia, 1995, no. 3(32), рр. 159–180.
- Vitushkin L. Gyroscopy and navigation, 2011, no. 3(2), рр. 184–191.
- Vitushkin L.F., Orlov O.A., Germak A., D’Agostino G. Measurement Techniques, 2012, no. 3(55), рр. 221–228.
- Vitushkin L.F., Orlov O.A. Gyroscopy and navigation, 2014, no. 2(85), рр. 95–101. (in Russ.)
- International vocabulary of metrology, Basic and general concepts and associated terms (VIM), JCGM 200:2008.
- http://valtar.ru/Magnets4/mag_4_58.htm. (in Russ.)
- Patent RU 2054662 C1, Ustroystvo dlya sozdaniya magnitnogo polya s poperechnym gradiyentom induktsii (Device to Generate a Magnetic Field with a Transverse Gradient Induction), P.A. Galaydin, A.I. Zamyatin, M.Ya. Marusina, Published 20.02.1996.
- Galaydin P.A., Ivanov V.A., Marusina M.Ya. Raschеt i proyektirovaniye elektromagnitnykh sistem magnitorezonansnykh tomografov (Calculation and Design of Electromagnetic Systems of Magnetic Resonance Tomography), St. Petersburg, 2004, 87 р. (in Russ.)
- Marusina M.Ya. Invariantnyy analiz i sintez v modelyakh s simmetriyami (Invariant Analysis and Synthesis in Models with Symmetries), St. Petersburg, 2004, 144 р. (in Russ.)
- Flegontov A.V., Marusina M.J. Lecture Notes in Computer Science, 2009, no. 5743 LNCS, рр. 81–88. DOI: 10.1007/978-3-642-04103-7_8.
- Marusina M.Ya. Korrektsiya neodnorodnosti osnovnogo magnitnogo polya mr-tomografa na postoyannykh magnitakh (Correction of the Inhomogeneity of the Main Magnetic Field of MRI Scanner with Permanent Magnets), Candidate’s Thesis, St. Petersburg, 1993, 128 р. (in Russ.)
- Marusina M.Ya. Journal of Instrument Engineering, 2005, no. 3(48), pp. 27–31. (in Russ.)
- Marusina M.Ya., Bazarov B.A., Galaydin P.A., Silayev A.A., Marusin M.P., Zakemovskaya E.Yu., Gilev A.G., Alekseyev A.V. Measurement Techniques, 2014, no. 4, рр. 62–65. (in Russ.)
- Marusina M.Ya., Bazarov B.A., Galaydin P.A., Silayev A.A., Marusin M.P., Zakemovskaya E.Yu., Mustafayev Yu.N. Measurement Techniques, 2014, no. 5, рр. 68–72. (in Russ.)
