Articles liés à Laser Doppler vibrometer: Vibration, Laser, Interferometry,...

Laser Doppler vibrometer: Vibration, Laser, Interferometry, Acousto-optic modulator, Doppler effect, Accelerometer, Transducer, Frequency modulation - Couverture souple

 
9786132512802: Laser Doppler vibrometer: Vibration, Laser, Interferometry, Acousto-optic modulator, Doppler effect, Accelerometer, Transducer, Frequency modulation

Synopsis

Ce contenu est une compilation d'articles de l'encyclopédie libre Wikipedia. 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 laser beam frequency due to the motion of the surface. The output of an LDV is generally a continuous analog voltage that is directly proportional to the target velocity component along the direction of the laser beam. Some advantages of an LDV over similar measurement devices such as an accelerometer are that the LDV can be directed at targets that are difficult to access, or that may be too small or too hot to attach a physical transducer. Also, the LDV makes the vibration measurement without mass-loading the target, which is especially important for MEMS devices.

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Présentation de l'éditeur

Ce contenu est une compilation d'articles de l'encyclopédie libre Wikipedia. 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 laser beam frequency due to the motion of the surface. The output of an LDV is generally a continuous analog voltage that is directly proportional to the target velocity component along the direction of the laser beam. Some advantages of an LDV over similar measurement devices such as an accelerometer are that the LDV can be directed at targets that are difficult to access, or that may be too small or too hot to attach a physical transducer. Also, the LDV makes the vibration measurement without mass-loading the target, which is especially important for MEMS devices.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.