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  • Ultrasonic Testing FAQs
    Ultrasonic nondestructive testing, also known as ultrasonic NDT or simply UT, is a method of characterizing the thickness or internal structure of a test piece using high-frequency sound waves. The frequencies, or pitch, used for ultrasonic testing are many times higher than the limit of human
  • An Introduction to Phased Array Ultrasonic Testing
    The NDT Overview series serves as a primer to the major NDT methods and techniques covered in ASNT's publications. This introduction to phased array ultrasonic testing is adapted from the second edition of Ultrasonic Testing Classroom Training Book, published by ASNT in 2018.
  • An Introduction to Ultrasonic Transducers for Nondestructive Testing
    The high-frequency sound waves used for flaw detection and thickness gaging in ultrasonic nondestructive testing applications are generated and received by small probes called ultrasonic transducers. Transducers are the starting point for any ultrasonic test setup, and they come in a wide variety
  • Ultrasonic Flaw Detection
    Of all the applications of industrial ultrasonic testing, flaw detection is the oldest and the most common. Since the 1940s, the laws of physics that govern the propagation of sound waves through solid materials have been used to detect hidden cracks, voids, porosity, and other internal
  • Polymer Developments for Ultrasonic Applications
    Over the years, these elastomeric materials have been developed with a range of low acoustic velocities and relatively low attenuation. These materials are used as acoustic lenses in medical phased-array probes, refracting wedges and delay lines in industrial ultrasonic testing applications
  • Intro to Ultrasonic Phased Array
    ultrasonic tests that include weld inspection, bond testing, thickness profiling, and in-service crack detection. This paper provides a brief introduction to how phased array systems work and how they can be employed in industrial ultrasonic nondestructive testing.
  • Using Infrared and Ultrasonic Technology in a Predictive Maintenance Program
    implemented an ultrasonic bearing testing program to supplement infrared data and images, proving to the customer that testing for motor bearing failure is very worthwhile, and that, once again, the infrared pictures don't lie. Infrared is used to determine overall motor condition, and ultrasonic testing
  • Using the Total Focusing Method to Improve Phased Array Ultrasonic Imaging
    The nondestructive testing (NDT) industry is experiencing an important technological advancement, as total focusing method (TFM) capable inspection devices are making their entry into market. The TFM approach represents a significant step forward for phased array ultrasonic testing (PAUT
  • Application Note: The Advantages of Broadband Ultrasonic Analysis During Leak Detection on Compressed Air Systems
    Ultrasonic testing devices have long been established in the field of preventive maintenance to detect leaks on compressed air systems. These devices usually record a frequency range around 40 kHz. SONOTEC Ultraschallsensorik Halle GmbH is breaking new ground with the SONAPHONE ultrasonic testing
  • Ultrasonic and Advanced Methods for Nondestructive Testing and Material Characterization
    Ultrasonic and Advanced Methods for Nondestructive Testing and Material Characterization. Placing emphasis on signal/image processing and pattern recognition of the signals acquired, this book examines the advantages of both industrial and medical ultrasound, and provides data in both signal
  • Application of Ultrasonic Cleaning
    Many articles exist describing "how ultrasonic cleaning works". The goal of this article is to help develop an understanding of the various components that ensure good ultrasonic cleaning. First, establish a cleaning need, along with a determination as to how to measure the level of cleanliness
  • Ultrasonic Thickness Gaging
    Ultrasonic thickness gaging is a widely used nondestructive test technique for measuring the thickness of a material from one side. It is fast, reliable, and versatile, and unlike a micrometer or caliper it requires access to only one side of the test piece. The first commercial ultrasonic gages
  • Miscellaneous Ultrasonic Applications
    While a majority of the applications for ultrasonic nondestructive testing fall into a few well-known categories, the range of possibilities for the technology is large and new tests are constantly being developed and implemented. The applications section of the Olympus website is meant to cover
  • Ultrasonic Inspection of Oil & Gas Pipelines
    A manufacturer of testing equipment for the oil refining industry needed a cable for ultrasonic inspection of oil and gas pipelines in Alaska to test for corrosion and cracks in the pipeline.
  • Sliding Sheet-Lattice Matrix for Ultrasonic Nondestructive Testing that Does Not Require Application of Liquids
    Toshiba Corporation has developed a sliding sheet-lattice matrix (SSLM) for ultrasonic nondestructive testing in infrastructure maintenance and inspections. The developed SSLM does not require the application of a liquid couplant, such as the gel applied to human bodies for ultrasonic examinations

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