Laser Doppler Vibrometry (LDV)

Testing and validation > Vibrometry

Description

Laser Doppler Vibrometry (LDV) measures the high frequency vibrations of surfaces by focusing a laser onto a sample and observing the reflected light.

As the surface of a sample oscillates, it causes the wavelength of incident laser light to lengthen or shorten. Comparing this Doppler shifted reflected...

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List of Available Tools

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Polytec MSA-400 (MCN)

Laser Doppler Vibrometer (LDV) with stroboscopic and planar motion analysis

VIC

VIC

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  • Description

    The Micro System Analyser (MSA)-400 is a Laser doppler vibrometer that allows the researcher to analyse and visualise structural vibrations in MEMS devices.

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    Measuring frequencies – up to 26MHz. Capable of characterising out of plane vibrations using scanning laser doppler vibrometry and in plane vibrations using stroboscopic video microscopy.

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Polytec OFV-500 (UWA)

Laser Doppler Vibrometer (LDV)

WA

WA

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  • Description

    Non-contact vibration analysis commonly used to characterise MEMS devices.

    Wide selection of high-performance vibration displacement, acceleration and vibrational velocity decoders that cover the frequency range from DC to 24 MHz, vibrational velocities up to ±25 m/s and displacement resolutions down to 0.1 pm

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    Decoders: VD-02 (velocity, analogue), VD-06 (Velocity, digital), DD-500 (Displacement, digital)

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