Seeding
The flow medium must be seeded with particles, droplets or bubbles.

Double Pulsed Laser
Two laser pulses illuminate these particles with short time difference.

Light Sheet Optics
Laser light is formed into a thin light plane guided into the flow medium.

CCD Camera
A fast progressive scan CCD captures two frames exposed by laser pulses.

Timing Unit
Highly accurate electronics control the laser and camera(s).

Software
Data capture, evaluation and display are fast and easy to operate