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Microscope unit
LV-0381

The LV-0381 is a microscope unit for the Laser Doppler Vibrometer. By combining the Laser Doppler Vibrometer with a microscope optical system, it can focus and irradiate laser light to Φ2.5 µm, allowing for the detection of vibrations of small objects up to 3 MHz (20 MHz with optional equipment).

With coaxial reflected illumination and two digital video cameras with different magnifications*, quick and accurate positioning and still image recording are possible. It can detect and evaluate the vibrations and behaviors of small mechanical parts, including micro-machines and MEMS (Micro Electro Mechanical Systems), piezoelectric devices, small electronic devices, and microstructures, with non-contact and high spatial resolution.
*When the built-in camera for positioning LV-0181 is mounted on the Laser Doppler Vibrometer LV-1800.

Features

  • With an objective lens that has a working distance of 5x to 50x, it can emit laser light with a minimum diameter of less than 2.5 µm.

  •  You can position the target to be detected and the irradiated laser light while observing them simultaneously at two magnifications (fields of view) ※1. 

  •  Vibration detection is possible in the range of 0.3 Hz to 3 MHz (20 MHz) when the LV-1800 is attached. 

  •  It is possible to extend from 1-dimensional (out-of-plane vibration) to 2-dimensional (in-plane uniaxial vibration) and 3-dimensional (X, Y, Z) ※2. 

  •  Laser Doppler Vibrometer LV-1800, LV-1710 ※3 / LV-1720 ※3 / LV-1720A ※3 are supported. 

*1 When the Laser Doppler Vibrometer LV-1800 is equipped with the built-in camera LV-0181 for positioning
*2 Expansion will be quoted separately
*3 Discontinued product

  • Feature No.1
    LV-0381 image
    LV-0151B objective lens (×10) approximately 0.6 mm × approximately 0.5 mm
  • Feature No. 2
    LV-0181 (LV-1800 option)
    LV-0151B objective lens (×10)
    Approximately 2.1 mm × Approximately 1.6 mm

Case Studies

  • Vibration analysis of micro machines and MEMS (Micro Electro Mechanical Systems)

  • Vibration measurement of microstructures

  • Measurement of the behavior of electronic devices such as piezoelectric elements and ceramic capacitors.

  • Detection and measurement of behaviors of insects and other organisms.

System Configurations

System Configurations

レーザードップラー振動計 LV-1800

Please consult for analysis above 100 kHz.

Specifications

corresponding Laser Doppler Vibrometer LV-1800, LV-1710 * / LV-1720 * / LV-1720A *
*Discontinued product
optical detection system Detector mount M22 X 0.5 length 4 mm
measured distance 38.9 mm (when the X10 objective lens is attached)
Observation device for targets CMOS camera 1280 x 960 (USB 2.0 output)
Focusing Unit method Manual control of coarse and fine movements.
up and down stroke 30 mm
coarse movement stroke 36 mm/rotation
micro-stroke 0.2 mm/rotation
amount of overhang 100 mm
fall prevention Fall prevention ring equipment
base material Aluminum (equipped with magnetic steel plate)
Size 310 mm X 300 mm
Radiation safety standards for laser products Laser Safety Class Class 2
usage environment usage environment Conforming to the corresponding detector.
Weight 15 kg (excluding the sensor)

objective lens

Model name magnification WD spot diameter
LV-0150B 5 X 36.1 mm Less than Φ4 micrometers
LV-0151B 10 X 38.8 mm Less than 3 µm
LV-0152B 20 X 22.5 mm Less than 2.5 µm

Please consult us regarding other rates.

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最終更新日:2022/02/01