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  • Piezo Ceramic - Ultrasonic Actuators
    This paper is an abstract for the "Control of Piezo Ceramic and Ultrasonic Actuators" on-line tutorial. The complete tutorial with audio can be viewed at http://www.galilmc.com/training/webconf.html. This course reviews the operation and the features of two types of actuators; the piezo ceramic
  • Ultrasonic Technique and Device for Residual Stress Measurement
    One of the advantages of ultrasonic techniques for residual stress measurement is that they are non-destructive. Using such techniques, one can measure the residual stresses in the same points many times, studying, for instance, the changes of re-sidual stresses under the action of service loading
  • Sensor Sense: Ultrasonic Double-Sheet Detectors
    /silica composite. The receiver uses a similar piezoceramic element to detect the ultrasonic vibrations. Manufacturing tolerances require factory matching of the emitter and receiver for optimum operation. Therefore, they must not be used separately or exchanged with other devices of the same type. Two
  • Ultrasonic Measurement of Residual Stresses in Welded Railway Bridge
    The residual stresses have a significant effect on the process of the initiation and propagation of the fatigue cracks in welded elements. In this paper the results of the residual stress measurement in the zones of welded elements of the railway bridge span are presented. An ultrasonic method
  • Advances in Hand-Held Ultrasonic Thickness Gages with Live Color Waveforms (A-Scan) (.pdf)
    of industries including refineries, power plants, process control, oil and gas, transportation, automotive and manufacturing to name a few. Ultrasonic thickness gage are an excellent device when access to only one side is possible.
  • Medical Device Link . The Next Wave in Minimally Invasive Surgery Research is heating up in the area of RF, microwave, and high-frequency ultrasound for use in therapeutic devices.
    systems. Lately, however, researchers have begun to see acoustic and electromagnetic waves in a whole new light, turning their attention to therapeutic rather than diagnostic applications. Current research is exploiting the ability of radio-frequency (RF), micro-, and ultrasonic waves to generate heat
  • Piezoceramics
    Piezoceramics are used in many types of electromechanical transducers operating in a wide range of frequencies. In sensors, they enable forces, pressures and accelerations to be converted into electrical signals. In sound generators and ultrasonic devices such as transducers they produce
  • New Ultrasonic Piezoelectric Rotary Motor Provides Superior Resolution and Dynamic Range (.pdf)
    Accurate angular positioning with fast response is extremely important in many hi-tech and industrial applications. The heart of all automated angular positioning devices is a rotary motor, and the most common motor used is the conventional electromagnetic (EM) motor. Examples of such motors
  • Medical Device Link .
    surface finish. For the removal of trace elements of contamination, ultrasonic technology is among the preferred methods. To simply add lustre to a stainless-steel device, the solution might be found in crushed nutshells. Ultrasonic technology achieves acceptable levels of cleanliness even in parts
  • Medical Device Link .
    devices because its strengths nicely complement the requirements of medical device assembly. Economics often favor ultrasonic welding because cycle times are typically very short. In addition, the equipment and tooling costs are low in comparison with other processes. Ultrasonic welding will generally

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