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  • Application Considerations in Specifying High Frequency Ultrasonic Transducers
    Advances in transducer manufacturing technology and associated instrument electronics have led to the introduction of commercial products that provide the capability for ultrasonic imaging, thickness gaging, flaw detection, and material analysis at test frequencies greater than 50 MHz. In many
  • High Frequency Properties of Passive Materials for Ultrasonic Transducers
    The acoustic properties of passive materials for ultrasonic transducers have been measured at room temperature in the frequency range from 25 to 65 MHz using ultrasonic spectroscopy. These materials include alumina / EPO-TEK 301 composites and tungsten/EPO-TEK 301 composites. Experimental results
  • 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
  • Intro to Ultrasonic Phased Array
    Many people are familiar with the medical applications of ultrasonic imaging, in which high frequency sound waves are used to create highly detailed cross-sectional pictures of internal organs. Medical sonograms are commonly made with specialized multi-element transducers known as phased arrays
  • Effects of Ultrasonics on Health
    energy is the ultrasonic transducer: a linear motor that converts electrical energy to reciprocating mechanical motion similar to a high-speed hammer. The motion occurs at a rate of 20,000 strokes or more per second, and is above the hearing range of the average person. The ultrasonic mechanical
  • Delay Time Measurement with Ultrasonic Sensors
    the transducer is designed as transmitter (ultrasonic generator) as well as receiver (microphone with high sensitivity) and is optimized for frequencies in the range of 120 kHz up to 400 kHz, far beyond the human hearing capacity. Activated by an oscillator the membrane of the transducer decouples ultrasonic
  • How a Vortex Flow Meter Works
    moves away from the center. By using a Delta P sensor to measure these pressure changes as the vortices pass, a digital frequency can be generated. Ultrasonic sensors - Ultrasonic sensors measure the time it takes a generated signal to travel from one transducer to another. Because the alternating
  • Piezo Motors: Principle of Operation for Engineers
    variations in the form of sound is the most common sensor application, which is seen in piezoelectric microphones and piezoelectric pickups for electrically amplified guitars. Piezoelectric sensors in particular are used with high frequency sound in ultrasonic transducers for medical imaging and industrial

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