Paper Title:
The Application Research of Amplitude Spectrum in the Coating Layer Thickness Detection
  Abstract

The caoting layer of each industry structure detected by ultrasonic testing is one commonly used thickness detection technique. This article proposed a method which used the extreme value of resonant amplitude spectrum to extract the thickness feature value, it can solve the feature value extraction difficult question which caused by two situations of time domain signals aliasing when the coating layer thickness is quite small and signals weak when signal attenuates seriously. And when the extreme point distributed unevenly in the actual detection, some measurements to improve the feature value extraction precision are proposed, which increased the detection signal-to-noise rated effectively. Take the structure of steel shell bonding rubber coating layer as the detection object, the detection experiment is studied to confirm its validity.

  Info
Periodical
Edited by
Qi Luo
Pages
802-806
DOI
10.4028/www.scientific.net/AMM.55-57.802
Citation
J. T. Zhang, B. B. Peng, "The Application Research of Amplitude Spectrum in the Coating Layer Thickness Detection", Applied Mechanics and Materials, Vols. 55-57, pp. 802-806, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Lun Ma, Xiang Dong Wu
Abstract:It is required that an ADC for sampling broadband signal directly has high sampling rate, and this will make the sampling accuracy decrease...
308
Authors: Hua Cong, Guang Ping Wu, Fu Zhou Feng, Wei Xing
Abstract:In the process of computed order tracking, traditional method is based on the given analyzed order requirements, and also assumed that the...
790
Authors: Hui Zhang, Feng Han, Xiao Yan Bao, Hua Yao Mao
Chapter 2: Signal Acquisition and Data Processing Techniques
Abstract:The aliasing error resulted from truncating signals incoherently is one of main spectrum errors. The investigation on the error remains quite...
208
Authors: Cheng Long Yi, Lei Wu
Chapter 9: Signal and Image, Video Processing, Data Mining and Acquisition, Computational Mathematics and Algorithms
Abstract:The wind profiler is used to detect the atmospheric turbulence signal and the atmospheric three-dimensional wind field information. The SNR...
744