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  • Optimization of Air Flow in the Read/Write Unit of Hard Disk Drives Using Laser-Doppler Vibrometry (.pdf)
    Laser vibrometers are proven and reliable tools for dynamic tests on data storage media such as hard disk drives (HDD) or DVD drives. Inside HDDs, the read/write heads are gliding on a kind of air bearing, which can introduce undesired vibrations to the system under certain conditions. Both
  • MEMS-Based High Throughput Screening
    The customer needs to do frequency analysis to determine the resonant frequency of an oscillating micro-fabricated device. They will use a Laser Doppler Vibrometer to monitor the physical oscillation. This is an instrument that looks at the light reflected from the surface of a moving part
  • Determining Mechanical Properties of the Human Hipbone Through Vibration Measurements (.pdf)
    Non-contact laser Doppler vibrometry is a powerful tool to aid in the study of biomechanics. Recent experiments. to determine the dynamic properties of a pelvic bone relied on deflection measurements from a 3-D scanning laser vibrometer. Excellent results were attained using this measurement
  • A New Approach to Developing Automotive Interior Parts (.pdf)
    representation of a part's dynamic behavior must be known. Therefore, a 3D Scanning Vibrometer was used to measure the dynamic behavior of each interior car part in. order to improve the modal correlation. The combination of the 3D vibrometer data and the simulation tool. has helped engineers achieve a better
  • Scanning an Ultra-light Membrane to Image Acoustic Fields (.pdf)
    velocity with a laser. vibrometer. The challenge lies in choosing a suitable material for the membrane and optimizing the experimental. conditions used to maintain it.
  • Air-Coupled Acoustics: Sound PAT for Tablet Characterization
    , an air-coupled transducer, a laser interferometer, a vibrometer controller and a digitizing oscilloscope, as well as a vacuum handling apparatus consisting of a vacuum wand and a vacuum pump with a suction power of ~30 kPa. The instrumentation diagram of the acoustic excitation and interferometric detection

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