This book is intended as a reference book for engineers and scientists who wish to understand the impact-echo method and its applications, as a source book for engineers and technicians who use impact-echo in field testing, and as a text for undergraduate and graduate courses on nondestructive ...
Impact Echo Testing of In-Situ Precast Concrete Cylinder Pipe - Sack, Olson - 1998 () Citation Context ...as been used extensively for quality control (Grosse et al., 2005). In the U.S., researchers have applied IE technology to the condition assessment of large water mains for the ...
This report presents an experimental and computational study on the recently-developed air-coupled impact-echo (IE) nondestructive testing (NDT) method, in which microphones replace the traditional physically-coupled IE sensors. To develop an optimum testing system and verify the new method, two ...
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敲击回音法(impact-echo method)则是利用弹性波於板内来回反射,找出共振频率而求得,但只能量测出纵波波速。而吴等人则 …ndt.iam.ntu.edu.tw|基于12个网页 2. 冲击回波法 冲击回波,Impact... ... ) Impact-echo 冲击回波 ) impact-echo method 冲击回波法 ) Impact-echo testing 冲击回波检测 ... www....
Based on the shortcoming of ultrasonic impulse wave for nondestructively testing concrete structures, the principle, testing technique, testing method and superiority of impact-echo method were discussed for measurement of the depth of concrete structures and the interior flaw, as well as the surface-...
Testing data comes from OnePlus Test Laboratory results. 4. The maximum supported fast-charging power is 100W. The actual charging power might vary with the scene changes such as voltage and environment temperature. Battery charging data comes from OnePlus Test Laboratory results. Test date: ...
NDT & E International Volume 24, Issue 5, October 1991, Pages 269 About ScienceDirect Contact and support Information for advertisers Terms and conditions Privacy policy Copyright © 2014 Elsevier B.V. except certain content provided by third parties. ScienceDirect® is a registered trade...
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2) impact-echo method 敲击-回波法 1. Influence analysis of transducers inimpact-echo methodby wavelet; 敲击-回波法中传感器影响的小波分析 3) testing of impact-echo method 敲击-回波法检测 4) impact 敲击 1. In order to find out quick eggshell crack detection nondestructively for on-line applica...