Published May 1998 | Version v1
Miscellaneous Metadata-only

An application of wavelet transform to ultrasonic evaluation of power plant materials

Creators

  • 1. Pukyong National University, Pusan (Korea, Republic of)
  • 2. Korea Institue of Machinery and Materials Daejeon (Korea, Republic of)
  • 3. Korea Electric Power Research Institute, Daejeon (Korea, Republic of)

Description

The purpose of the present paper is to evaluate creep damages in the power plant materials. In particular the wavelet transform has been utilized to analyze the frequencies in the ultrasonic echoes. This method allows one to do signal processing in the time-frequency plane and is well adapted to localize in time both high and low frequencies and does not introduce interference terms. In this study, we will investigate several creep damaged specimens and analyze its ultrasonic echoes. The wavelet transform will be briefly introduced with emphasis on the aspects which make it suitable for our application.

Part of:
Proceedings of the Korean Society for Nondestructive Testing Fall Meeting 1998

Additional details

Publishing Information

Publisher
KSNT
Imprint Place
Seoul (Korea, Republic of)
Imprint Title
Proceedings of the Korean Society for Nondestructive Testing Spring Meeting 1998
Imprint Pagination
401 p.
Journal Page Range
p. 76-84

Conference

Title
1998 Spring Meeting of the Korean Society for Nondestructive Testing
Dates
8-9 May 1998
Place
Seoul (Korea, Republic of)

INIS

Country of Publication
Korea, Republic of
Country of Input or Organization
Korea, Republic of
INIS RN
46011561
Subject category
S42: ENGINEERING;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
CREEP; DAMAGE; POWER PLANTS; SIGNALS; ULTRASONIC TESTING; USES
Descriptors DEC
ACOUSTIC TESTING; MATERIALS TESTING; MECHANICAL PROPERTIES; NONDESTRUCTIVE TESTING; TESTING

Optional Information

Notes
8 refs, 7 figs, 2 tabs