Results 201 to 210 of about 33,881 (247)
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2010
Abstract This chapter discusses the use of nondestructive inspection methods, including visual, ultrasonic, radiographic, and thermographic techniques, and the types of flaws and damages they can reveal in composite parts and assemblies. It describes the basic principles behind each method along with best practices and procedures.
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Abstract This chapter discusses the use of nondestructive inspection methods, including visual, ultrasonic, radiographic, and thermographic techniques, and the types of flaws and damages they can reveal in composite parts and assemblies. It describes the basic principles behind each method along with best practices and procedures.
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Nondestructive inspection of metal products
Metallurgist, 1982Considerable emphasis is currently being given to finding more reliable and quicker methods and equipment for nondestructive and statistical quality control in attempts to solve the problem of improving product quality. Modern methods of nondestructive inspection make it possible to detect surface and internal defects and decarbonization, as well as to
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Ultrasonic nondestructive tubing inspection system
The Journal of the Acoustical Society of America, 1987A system for measuring the extent of tube wall erosion in an inspection region of a heat exchanger tube of a nuclear steam generator, uses an ultrasonic means driven helically inside the eroded tube which may be filled with a fluid (e.g., water) to minimize ultrasonic wave attenuation.
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Dynamic Nondestructive Inspection Using Thermal Neutrons
Nuclear Technology, 1975Dynamic nondestructive inspection of optically opaque systems can be accomplished using a dynamic radiography technique with thermal neutrons as the illuminating radiation.
Paul J. Rose +2 more
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Nondestructive inspection via boundary scan
Proceedings of the IEEE National Aerospace and Electronics Conference, 2003The increased use of very large scale integrated circuits (VLSI) and surface mount devices (SMD) by the PWB industry is making the job of the manufacturing quality control inspector more difficult. The attempts by the Joint Test Action Group (JTAG) to develop a worldwide standard for a testability bus can mean a bonus for the quality-control inspector.
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Piezoelectric copolymer array for nondestructive inspection
The Journal of the Acoustical Society of America, 1996Ultrasonic sensors which use copolymer membranes, just like other single-crystal elements and ceramic elements, are able to transmit and receive with the same element. However, for meeting the required specifications to identify welding defects around 0.1 mm, there were many difficulties and problems in manufacturing an integrated type of sensor with ...
Hajime Yuasa, Kuniyuki Masazumi
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Corrosion Nondestructive Inspection Test Standards
CORROSION 2011, 2011Abstract In order to effectively apply nondestructive inspection (NDI) technologies to the detection of hidden corrosion on painted metal substrates, corrosion test standards fabricated with materials of construction similar to the application of interest and containing discrete corrosion defects of varying area to depth aspect ratios ...
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Nondestructive inspection of reinforced concrete structures
SPIE Proceedings, 2009This paper explores the feasibility of detecting and quantifying corrosion and delamination (separation) at the interface between reinforcing steel bars and concrete using ultrasonic guided waves. The problem of corrosion of the reinforcing steel in structures has increased significantly with time.
Tri Huu Miller +4 more
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Nondestructive Inspection Methods for Railroad Castings
2010 Joint Rail Conference, Volume 2, 2010Transportation Technology Center, Inc. (TTCI) has investigated various nondestructive inspection (NDI) methods to determine if they are capable of reliably inspecting side frames, bolsters, knuckles, and couplers. The NDI methods used for this investigation include dry and wet (fluorescent) magnetic particle, liquid penetrant, alcohol wipe, visual ...
Daniel Carter, Kari Gonzales
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Nondestructive inspection using pulsed terahertz wave
2011 International Conference on Infrared, Millimeter, and Terahertz Waves, 2011We suggest that THz wave is an alternative tool for the void detection in multilayer semiconductor. We measured the THz pulse using a reflective THz imaging system and obtained THz imaging by signal processing. And, to verify possibility of THz inspection, we compared with ultrasound.
Geun-Ju Kim +3 more
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