NBS Special Publication


Book Description










Reference for Modern Instrumentation, Techniques, and Technology: Ultrasonic Instruments and Devices II


Book Description

While research on ultrasonics has been covered in earlier volumes of the Physical Acoustics series, Volumes 23 and 24 demonstrate the successful commercialization of devices and instruments arising from research in this area. These volumes will assist in the process of bringing research output into the marketplace to the benefit of customers.The chapters are liberally illustrated with pictures of actual commercial objects which have been or are in use. Included are Medical Ultrasonic Diagnostics, Nondestructive Testing (NDT), Acoustic Emission, Process Control, Surface Acoustic Wave (SAW) Devices, Frequency Control Devices, Research Instruments, Transducers, and Ultrasonic Microscopes. Also contained in the text are six essays covering technology transfer and commercialization.




Photoelasticity


Book Description

Thirty-five papers were presented at the International Symposium on Photoelasticity, Tokyo, 1986, representing fifty-five authors. Eighteen of these papers were presented by Japanese photoelasticians and seventeen by leading foreign authorities from eleven countries (Austria, Canada, Czechoslovakia, F.R. of Germany, France, Greece, India, Switzerland, UK, USA and USSR) • This is the first symposium on photoelasticity of international scope held in Japan. The primary objectives of this symposium are to help bridge the gap between photoelastic researchers around the world, to promote mutual understanding and communications and to facilitate exchange of newly acquired knowledge in theories and techniques. In addition, it is important that these valuable results are communicated effectively to engineers who can apply them in practice in industry. The papers presented at this symposium cover all branches of photo elasticity in a broad sense, including, in addition to long estab lished photoelasticity, newly developed moire, interferometric, and holographic photoelasticity, caustics and speckle. Therefore, from an optical stress analysis pe~spective, this volume is the latest compre hensive collection of photoelastic expertises.




Nondestructive Characterization of Materials X


Book Description

The papers published in these peer-reviewed proceedings represent the latest developments in nondestructive characterization of materials and were presented at the Tenth International Symposium on Nondestructive Characterization of Materials held on June 26 - 30, 2000 in Karuizawa, Japan. The symposium was held concurrently with three other symposia and one workshop. This symposium is the tenth in the series that began in 1983 and became an international meeting in 1986.The symposium started with a Plenary Lecture entitled 'Application of Non-contact Ultrasonics to Nondestrctive Characterization of Materials' by Professor R.E. Green, Jr. Various characterization methods were presented at the symposium, including ultrasonics, X-ray, eddy currents, laser, thermal wave, acoustic emission, optical fibers, optics, magnetics and ultrasonic microscope. Thin films and coatings as well as smart materials were also emphasized in this symposium.




Robotic Nondestructive Testing Technology


Book Description

The content of this book includes a variety of nondestructive testing (NDT) methods, with many introductions to testing and application cases. The book proposes new ultrasonic testing technology for complex workpieces. It is hard for traditional NDT technology to realize the automatic detection of complex curved components, especially the automatic high-precision nondestructive detection of curved-surface components with variable curvature, variable thickness and complex contour. Therefore, the robotic NDT technique as a combination of manipulator technique and NDT technique can further improve the efficiency and accuracy of NDT. Robotic NDT Technique combines the physical principle of nondestructive testing with the flexible motion control of spatial attitude of articulated manipulator. With NDT as the constraint, it controls the motion attitude and azimuth angle of a transmitting and receiving transducer. Thus traditional NDT technique has developed from plane to curved surface, from 2D to many dimensions and from artificiality to intelligence, into a unique and systematic interdisciplinary robotic NDT technique.