Indian Journal of Science and Technology

Open Access Open Access  Restricted Access Subscription Access

The use of Complex-Modulated Signals at US Testing of Extended Complex-Structured Products


Affiliations
1 National Research University, Moscow Power Engineering Institute, Electrical Engineering Faculty, Moscow, Russian Federation
 

The results of analysis of the possibilities to use Complex-Modulated radio pulses as probing signals in US flaw detection are given. It is shown that the application of Complex-Modulated echo signals in the receiving path optimal filters improves the basic parameters of the echo control method – sensitivity and resolution capability, and, in presence of white noise and not correlated interference, generally increases the reliability of the testing method.

Keywords

Complex-Modulated Signals, Electro acoustic Pickup, Frequency-Modulated Pulse, Optimal Filtering, Phase- Shift Keyed Signal, US Flaw Detection
User

Abstract Views: 167

PDF Views: 0




  • The use of Complex-Modulated Signals at US Testing of Extended Complex-Structured Products

Abstract Views: 167  |  PDF Views: 0

Authors

Vladimir K. Kachanov
National Research University, Moscow Power Engineering Institute, Electrical Engineering Faculty, Moscow, Russian Federation
Igor V. Sokolov
National Research University, Moscow Power Engineering Institute, Electrical Engineering Faculty, Moscow, Russian Federation
Alexey A. Sinitsyn
National Research University, Moscow Power Engineering Institute, Electrical Engineering Faculty, Moscow, Russian Federation
Maksim B. Fedorov
National Research University, Moscow Power Engineering Institute, Electrical Engineering Faculty, Moscow, Russian Federation
Michael A. Karavaev
National Research University, Moscow Power Engineering Institute, Electrical Engineering Faculty, Moscow, Russian Federation
Roman V. Kontsov
National Research University, Moscow Power Engineering Institute, Electrical Engineering Faculty, Moscow, Russian Federation

Abstract


The results of analysis of the possibilities to use Complex-Modulated radio pulses as probing signals in US flaw detection are given. It is shown that the application of Complex-Modulated echo signals in the receiving path optimal filters improves the basic parameters of the echo control method – sensitivity and resolution capability, and, in presence of white noise and not correlated interference, generally increases the reliability of the testing method.

Keywords


Complex-Modulated Signals, Electro acoustic Pickup, Frequency-Modulated Pulse, Optimal Filtering, Phase- Shift Keyed Signal, US Flaw Detection



DOI: https://doi.org/10.17485/ijst%2F2015%2Fv8i29%2F122263