Publication:
Impactor velocity measurement system for dynamic hardness testers and calibration machines on Leeb scales

Дата
2021
Авторы
Gogolinskii, K.
Syasko, V.
Umanskii, A.
Kazieva, T.
Gubskiy, K.
Kuznetsov, A.
Gluhov, R.
Казиева, Татьяна Вадимовна
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Издатель
Научные группы
Организационные подразделения
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Институт лазерных и плазменных технологий
Стратегическая цель Института ЛаПлаз – стать ведущей научной школой и ядром развития инноваций по лазерным, плазменным, радиационным и ускорительным технологиям, с уникальными образовательными программами, востребованными на российском и мировом рынке образовательных услуг.
Выпуск журнала
Аннотация
© 2020 Elsevier LtdThe article aims to solve the problem of measuring the impactor velocity for dynamic hardness testers according to the Leeb, as one of the key parameters to ensure the accuracy and reliability of hardness measurements by this method. The gravitational method of impactor acceleration, used in calibration machines, and spring acceleration, typical for hardness testers, have been studied. Various technical solutions for velocity calibration are analyzed. Accurate, easy to implement, compact and inexpensive device based on fiber optic and allows monitoring the dynamics of the object without the use of additional reflective elements is developed. This system suitable for calibration or verification of dynamic hardness testers and calibration machines. The system is based on a laser interferometer in which the direct optical heterodyning of Doppler signals (Photonic Doppler Velocimetry) is applied. The maximum permissible error of the system is determined by the requirements for the metrological characteristics of the Leeb hardness calibration machine and is 0.0025 m/s at a speed of ~2 m/s. The possibility to measure the impact body velocity with an error of 0.2·10-3 m/s is confirmed.
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Цитирование
Impactor velocity measurement system for dynamic hardness testers and calibration machines on Leeb scales / Gogolinskii, K. [et al.] // Measurement: Journal of the International Measurement Confederation. - 2021. - 10.1016/j.measurement.2020.108632
URI
https://www.doi.org/10.1016/j.measurement.2020.108632
 https://www.scopus.com/record/display.uri?eid=2-s2.0-85094882502&origin=resultslist
 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000662225100046
 https://openrepository.mephi.ru/handle/123456789/23462
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