Now showing items 1-10 of 457
Classification of lumber of Eucalyptus using non-destructive tests
Classification and standardization of the sawn wood is a usual activity, developed by countries that come as great consumers of this material. Brazil does not practice the classification of sawn wood. This work had the ...
Study of Brazilian commercial Oriented Strand Board panels using stress wave
Today lumber industry has shown a clearly evident trend towards wood based panels' production; and, among them, Oriented Strand Board (OSB) has become more and more prominent. Nondestructive Testing (NDT) such as stress ...
Falling sheet envelope method for non-destructive testing time-dependent signals
(PERGAMON-ELSEVIER SCIENCE LTD, 2011)
In this work, an algorithm to compute the envelope of non-destructive testing (NDT) signals is proposed. This method allows increasing the speed and reducing the memory in extensive data processing. Also, this procedure ...
Construction and test of low cost X-ray tomography scanner for physical-chemical analysis and nondestructive inspections
X-ray computed tomography (CT) refers to the cross-sectional imaging of an object measuring the transmitted radiation at different directions. In this work, we describe the development of a low cost micro-CT X-ray scanner ...
Sparse arrays and image compounding techniques for non-destructive testing using guided acoustic waves
Piezoelectric array transducers applications are becoming usual in the ultrasonic non-destructive testing area. However, the number of elements can increase the system complexity, due to the necessity of multichannel ...
A Non-Destructive Testing Based on Electromagnetic Measurements and Neural Networks for the Inspection of Concrete Structures
(Trans Tech Publications Ltd, 2011-01-01)
This paper presents a new non-destructive testing (NDT) for reinforced concrete structures, in order to identify the components of their reinforcement. A time varying electromagnetic field is generated close to the structure ...
NONDESTRUCTIVE EVALUATION OF WOOD USING ULTRASONIC TECHNIQUE
(Universidad del Bío-Bío, 2002)