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  2. Laser scanning vibrometry - Wikipedia

    en.wikipedia.org/wiki/Laser_scanning_vibrometry

    The scanning laser vibrometer or scanning laser Doppler vibrometer, was first developed by the British loudspeaker company, Celestion, around 1979, [1] further developed in the 1980s, [2] and commercially introduced by Ometron, Ltd around 1986. It is an instrument for rapid non-contact measurement and imaging of vibration.

  3. Laser Doppler vibrometer - Wikipedia

    en.wikipedia.org/wiki/Laser_Doppler_vibrometer

    A laser Doppler vibrometer (LDV) is a scientific instrument that is used to make non-contact vibration measurements of a surface. The laser beam from the LDV is directed at the surface of interest, and the vibration amplitude and frequency are extracted from the Doppler shift of the reflected laser beam frequency due to the motion of the surface.

  4. Continuous-scan laser Doppler vibrometry - Wikipedia

    en.wikipedia.org/wiki/Continuous-scan_laser...

    Continuous-scan laser Doppler vibrometry (CSLDV) is a method of using a laser Doppler vibrometer (LDV) in which the laser beam is swept across the surface of a test subject to capture the motion of a surface at many points simultaneously.

  5. Laser Doppler velocimetry - Wikipedia

    en.wikipedia.org/wiki/Laser_Doppler_velocimetry

    Laser Doppler velocimetry, also known as laser Doppler anemometry, is the technique of using the Doppler shift in a laser beam to measure the velocity in transparent or semi-transparent fluid flows or the linear or vibratory motion of opaque, reflecting surfaces. The measurement with laser Doppler anemometry is absolute and linear with velocity ...

  6. Vibration calibrator - Wikipedia

    en.wikipedia.org/wiki/Vibration_Calibrator

    Vibration calibrators are most often used for testing and checking vibration sensors and measuring instruments at the site of their operation and are, therefore, usually transportable and battery operated. The most commonly occurring vibration frequency of calibrators is 159.2 Hz, which is equivalent to a radian frequency of 1000 rad/s. The ...

  7. 22 Quiet Vibrators to Have Silent Self-Sex (or to Enjoy with ...

    www.aol.com/22-quiet-vibrators-silent-self...

    Maude. This waterproof, 4.8-inch vibrator has three speeds that are easy to operate with a touch button at the base. It's designed for external and internal use, and comes with a discreet little ...

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