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ultrasonic    音标拼音: [,ʌltrəs'ɑnɪk]

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  • Ultrasound - Wikipedia
    Ultrasonic devices operate with frequencies from 20 kHz up to several gigahertz Ultrasound is used in many different fields Ultrasonic devices are used to detect objects and measure distances Ultrasound imaging or sonography is often used in medicine
  • Ultrasonics | Physics, Sound Waves Applications | Britannica
    An ultrasonic transducer is a device used to convert some other type of energy into an ultrasonic vibration There are several basic types, classified by the energy source and by the medium into which the waves are being generated
  • Ultrasonics | Journal | ScienceDirect. com by Elsevier
    We are delighted to announce a forthcoming special issue of Ultrasonics, dedicated to the rapidly evolving field of "Ultrasonic-assisted Microfluidics and Streaming”
  • Basic Principles of Ultrasound – Ultrasound Physics and its . . . - PALNI
    Define ultrasound and describe its characteristics as a form of energy Explain the principles of sound wave propagation, including frequency, wavelength, amplitude, and velocity Describe the piezoelectric effect and how it is used in ultrasound transducers
  • What Are Ultrasonic Waves and How Do They Work?
    Ultrasonic waves consist of sound energy that is too high-pitched for us to perceive This inaudible energy is now a powerful tool used across medicine, industry, and daily life, allowing us to see inside the human body or test the structural integrity of a bridge
  • Ultrasound - National Institute of Biomedical Imaging and Bioengineering
    Medical ultrasound falls into two distinct categories: diagnostic and therapeutic Diagnostic ultrasound is a non-invasive diagnostic technique used to image inside the body
  • ULTRASONIC Definition Meaning - Merriam-Webster
    Ultrasound, or ultrasonography, works on the principle that sound is reflected at different speeds by tissues or substances of different densities Ultrasound technology has been used medically since the 1940s
  • Ultrasonic Sound - HyperPhysics
    The term "ultrasonic" applied to sound refers to anything above the frequencies of audible sound, and nominally includes anything over 20,000 Hz Frequencies used for medical diagnostic ultrasound scans extend to 10 MHz and beyond
  • Ultrasonic Industry Association
    UIA is the international business forum for users, manufacturers, and researchers of ultrasonics Our members use acoustic vibrations to improve materials, industrial processes, and medical technology We call this "powering sound ideas " Let's work together to power your sound ideas
  • How does ultrasound work? | Uses of ultrasound - Explain that Stuff
    Ultrasound waves have higher frequencies than normal sound waves, but they also have shorter wavelengths In other words, the distance between one ultrasound wave traveling through the air and the one following on behind it is much shorter than in a normal sound wave





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