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Microscope unit
LV-0381

The LV-0381 is a microscope unit for Laser Doppler Vibrometer. By combining Laser Doppler Vibrometer with a microscope optical system, it can focus and irradiate laser light to ⌀2.5 µm, enabling the detection of vibrations in minute objects up to 3 MHz (20 MHz with optional equipment).
Coaxial incident illumination and two digital video cameras with different magnifications* enable quick and accurate positioning and still image recording. This allows for non-contact, high-spatial-resolution detection and evaluation of vibrations and behavior of micromachines, MEMS (Micro Electro Mechanical Systems), other small mechanical parts, piezoelectrics, small electronic devices, and microstructures.
*When the LV-0181 built-in positioning camera is attached to the LV-1800 Laser Doppler Vibrometer

Features

  • With an objective lens offering a working distance of 5x to 50x, it can emit laser light with a minimum diameter of Φ2.5 µm or less.

  •  The detection target and the irradiating laser beam can be positioned while simultaneously observing them at two magnifications (fields of view) *1. 

  •  Vibration detection is possible from 0.3 Hz to 3 MHz (20 MHz). (When LV-1800 is attached) 

  •  It is possible to extend from one dimension (out-of-plane vibration) to two dimensions (in-plane uniaxial vibration) and three dimensions (X, Y, Z) *2.​ 

  •  Laser Doppler Vibrometer are compatible: LV-1800, LV-1710 *3 / LV-1720 *3 / LV-1720A *3.​ 

*1 When the LV-0181 built-in positioning camera is attached to the LV-1800 Laser Doppler Vibrometer
*2 Expansion will be quoted separately.
*3 Discontinued products

  • Feature No. 1
    LV-0381 Image
    LV-0151B Objective lens (×10) approx. 0.6 mm × approx. 0.5 mm
  • Feature No. 2
    LV-0181 (LV-1800 option)
    LV-0151B Objective Lens (x10)
    Approximately 2.1 mm x approximately 1.6 mm

Case Studies

  • Vibration analysis of micromachines 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 the behavior of insects, other organisms, etc.

System Configurations

System Configurations

レーザードップラー振動計 LV-1800

*Please contact us for analysis at 100 kHz or higher.

Specification

Compatible Laser Doppler Vibrometer LV-1800, LV-1710 * /LV-1720 * /LV-1720A *
*Discontinued products
Detection optics detector mount M22 x 0.5, Length 4 mm
Measurement distance 38.9 mm (with X10 objective lens attached)

Target observation device

 CMOS camera 1280 x 960 (USB 2.0 output)
Focusing unit method Manual coarse and fine adjustment
Up and down stroke 30 mm
Coarse stroke 36 mm/rotation
Fine adjustment stroke 0.2 mm/rotation
Overhang amount 100 mm
Fall prevention Equipped with a fall prevention ring.

base

material

 Aluminum (with magnetized steel plate attached)
size 310 mm x 300 mm

Radiation safety standards for laser products

 Laser safety class Class 2
Usage environment

 

 Usage environment Complies with the corresponding detector.
Weight
15 kg (excluding attached sensors)

Objective lens

Model name magnification WD Spot diameter
LV-0150B 5 X 36.1 mm Φ4 µm or less
LV-0151B 10 X 38.8 mm Φ3 µm or less
LV-0152B 20 X 22.5 mm Φ2.5 µm or less

*Please contact us regarding other magnification options.

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Outline Drawings

最終更新日:2022/02/01