Dual-camera system for high-speed imaging in particle image velocimetry

TL;DR

This paper proposes a dual-camera system that enables high-speed imaging in particle image velocimetry without sacrificing sensitivity and resolution, using two still cameras instead of specialized high-speed cameras.

Contribution

It introduces a novel dual-camera setup for particle image velocimetry that maintains high sensitivity and resolution at high speeds, challenging the reliance on specialized high-speed cameras.

Findings

High-speed imaging achieved with two still cameras

Maintains sensitivity and resolution during high-speed capture

Offers a cost-effective alternative to specialized high-speed cameras

Abstract

Particle image velocimetry is an important technique in experimental fluid mechanics, for which it has been essential to use a specialized high-speed camera. However, the high speed is at the expense of other performances of the camera, i.e., sensitivity and image resolution. Here, we demonstrate that the high-speed imaging is also possible with a pair of still cameras.