Choosing parameters of space-time signal processing in ultrasonic structuroscopy of cast-iron molds subjected to thermal cycling
- Авторы: Kachanov V.1, Kartashev V.1, Sokolov I.1, Voronkova L.2, Kontsov R.1, Sinitsyn A.1
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Учреждения:
- Moscow Power Engineering Institute
- Central Scientific Reasearch Institute of Machine Building and Metal Processing
- Выпуск: Том 52, № 6 (2016)
- Страницы: 339-346
- Раздел: Acoustic Methods
- URL: https://journals.rcsi.science/1061-8309/article/view/181152
- DOI: https://doi.org/10.1134/S1061830916060048
- ID: 181152
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Аннотация
It is shown that in order to improve the accuracy of measuring the speed of ultrasonic vibrations in cast-iron products by echo-pulse method, one should use noise-immune space-time echosignal processing methods that improve signal–to–pattern-noise ratio. Signal parameters should also be adapted for characteristics of the test object. Requirements for the choice of probing-signal parameters have been established as well as optimum displacement step of a double-crystal transducer. The value of the speed of ultrasound at a time moment that precedes the destruction of cast-iron mold has been determined.
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Об авторах
V. Kachanov
Moscow Power Engineering Institute
Автор, ответственный за переписку.
Email: kachanovvk@mail.ru
Россия, Moscow, 111250
V. Kartashev
Moscow Power Engineering Institute
Email: kachanovvk@mail.ru
Россия, Moscow, 111250
I. Sokolov
Moscow Power Engineering Institute
Email: kachanovvk@mail.ru
Россия, Moscow, 111250
L. Voronkova
Central Scientific Reasearch Institute of Machine Building and Metal Processing
Email: kachanovvk@mail.ru
Россия, Moscow, 115088
R. Kontsov
Moscow Power Engineering Institute
Email: kachanovvk@mail.ru
Россия, Moscow, 111250
A. Sinitsyn
Moscow Power Engineering Institute
Email: kachanovvk@mail.ru
Россия, Moscow, 111250