Choosing parameters of space-time signal processing in ultrasonic structuroscopy of cast-iron molds subjected to thermal cycling
- Authors: Kachanov V.K.1, Kartashev V.G.1, Sokolov I.V.1, Voronkova L.V.2, Kontsov R.V.1, Sinitsyn A.A.1
-
Affiliations:
- Moscow Power Engineering Institute
- Central Scientific Reasearch Institute of Machine Building and Metal Processing
- Issue: Vol 52, No 6 (2016)
- Pages: 339-346
- Section: Acoustic Methods
- URL: https://journals.rcsi.science/1061-8309/article/view/181152
- DOI: https://doi.org/10.1134/S1061830916060048
- ID: 181152
Cite item
Abstract
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.
About the authors
V. K. Kachanov
Moscow Power Engineering Institute
Author for correspondence.
Email: kachanovvk@mail.ru
Russian Federation, Moscow, 111250
V. G. Kartashev
Moscow Power Engineering Institute
Email: kachanovvk@mail.ru
Russian Federation, Moscow, 111250
I. V. Sokolov
Moscow Power Engineering Institute
Email: kachanovvk@mail.ru
Russian Federation, Moscow, 111250
L. V. Voronkova
Central Scientific Reasearch Institute of Machine Building and Metal Processing
Email: kachanovvk@mail.ru
Russian Federation, Moscow, 115088
R. V. Kontsov
Moscow Power Engineering Institute
Email: kachanovvk@mail.ru
Russian Federation, Moscow, 111250
A. A. Sinitsyn
Moscow Power Engineering Institute
Email: kachanovvk@mail.ru
Russian Federation, Moscow, 111250