Detonation spraying applicability in electrical insulation of the piezoelectric transducers as part of the tuning-fork level detectors
Authors: Brazhnikov A.M., Ganigin S.Yu.
Published in issue: #10(154)/2024
DOI: 10.18698/2308-6033-2024-10-2396
Category: Metallurgy and Science of Materials | Chapter: Metal Science, Thermal Processing of Metals and Alloys
The paper considers a possibility to introduce detonation spraying in providing the piezoelectric transducer electrical insulation from metal elements of the device elements. It presents results of laboratory experiments aimed at applying detonation spraying based on the aluminum oxide (Al2O3) to the surface of a stainless steel workpiece. Results are demonstrated of measuring the coating insulation resistance, as well as of the experiments aimed at increasing the detonation spray coating insulation properties using molecular reinforcement with the synthetic oils. A sequence of technological operations was developed in the course of those experiments making it possible to raise insulation resistance of the detonation spraying by 3-4 orders of magnitude. Comparison of the amplitude-frequency characteristics of the piezoelectric element - resonator assemblies with and without an aluminum oxide coating showed a slight weakening of the resonance amplitude when operating in the typical liquid media with densities between 700 and 1300 kg/m3.
EDN GARQEZ
References
[1] Zhdankin V.K. Signalizatory izmeneniya urovnya [Level change alarms]. Sovremennye tekhnologii avtomatizatsii — Modern Automation Technologies, 2002, no. 2, pp. 6–19.
[2] Zatserklyanny O.V. Issledovanie i razrabotka pretsezionnogo plotnomera zhidkostey i gazov na osnove kamertonnogo vibropreobrazovatelyaю Dis. … kand. tekhn. nauk [Research and development of a precision densitometer for liquids and gases based on the tuning-fork vibration transducerю Diss. … Cand. Sc. (Eng.)]. Novocherkassk, 2021.
[3] Bogush M.V., Garkovets A.A., Pikalev E.M., Panich A.E. Vibratsionnye signalizatory urovnya dlya magistralnykh gazoprovodov [Vibration level alarms for main gas pipelines]. NKTB “Piezopribor” SFU. Rostov-on-Don, Piezoelektrik JSC. Available at: https://www.piezoelectric.ru/files/3datchiki_davlenia.pdf
[4] Gonzalez M., Ham G., Haddad A.A., Bernero G., Deffenbaugh M. Downhole viscosity measurement platform using tuning fork oscillators. In: IEEE SENSORS, IEEE, 2015, pp. 1–4.
[5] Roshani G.H., Roshani S., Nazemi E., Roshani S. Online measuring density of oil products in annular regime of gas-liquid two-phase flows. Measurement, 2018, no. 129, pp. 296–301.
[6] Fauchais P.L., Heberlein J.V.R., Boulos M.I. Thermal spray fundamentals: from powder to part. New York, Springer Science+Business Media, 2014, 1565 p. ISBN 978-0-387-28319-7
[7] Tekhnicheskaya dokumentatsiya na pribor Rosemount 2133 [Technical documentation for the Rosemount 2133 device]. Electronic resource. Available at: https://www.instrumart.com/assets/Rosemount-2130-datasheet.pdf (accessed May 25, 2024).
[8] Ulianitsky V.Yu., Shtertser A.A., Batraev I.S., Smurov I. Deposition of dense ceramic coatings by detonation spraying. In: ITSC-2014 Proceedings. Barcelona, Spain, DVS-Berichte, 2014, vol. 302, pp. 349–352. ISBN 978-3-87155-574-9.
[9] Ulianitsky V.Yu., Shtertser A.A., Batraev I.S. Elektroizolyatsionnye svoystva alyumooksidnykh detonatsionnykh pokrytiy [Electrical insulation properties of aluminum oxide detonation coatings]. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty — Obrabotka Metallov / Metal Working and Material Science, 2018, vol. 20, no. 4, pp. 83–95. https://doi.org/10.17212/1994-6309-2018-20.4-83-95
[10] Niittymäki M., Lahti K., Suhonen T., Metsäjoki J. Effect of temperature and humidity on dielectric properties of thermally sprayed aluminum coatings. IEEE Transactions on Dielectrics and Electrical Insulation, 2018, vol. 25, iss. 3, pp. 908–918. https://doi.org/10.1109/TDEI.2018.006892
[11] Brazhnikov A.M., Isaenko A.S., Ganigin S.Yu. Investigation of the characteristics of a tuning fork measuring transducer for level detectors of liquids and bulk materials. In: Interdisciplinary Research: Past Experience, Present Opportunities, Strategies the Future: Collection of articles XXXV International Scientific and Practical Conference. Melbourne, ICSRD “Scientific View”, 2023, 385 p.