Frequently Asked Questions about Laser Doppler Vibrometer
Question number FAQ-1362
How does the measurement target appear when using a microscopic observation system?
The micro-object observation system is a system that monitors small objects by combining a video observation unit (LV-0180) and an objective lens (LV-0155). It is possible to irradiate the laser light from the Laser Doppler Vibrometer, which is focused down to about 3 μm, while confirming the magnified target on a TV monitor using a small CCD camera. The target can be viewed magnified approximately 280 times on a 15-inch monitor.
If the target object is small, using a 20× objective lens (LV-0152) allows for observing the object at an even higher magnification.
Video Observation Unit (LV-0180) + Objective Lens 10× (LV-0155) Image Example

A slit with a width of 50μm (center of the image)

A pinhole of 50μm (at the center of the image)
Common Conditions
Monitor: 15-inch LCD TV (4:3 diagonal 380mm)
Lighting: Fiber Cold Light Source
Last updated: April 21, 2008