High-power diode lasers in spray process diagnostics

Jussi Larjo

doi:10.1117/12.567358

17 March 2005 High-power diode lasers in spray process diagnostics

Jussi Larjo

Proceedings Volume 5580, 26th International Congress on High-Speed Photography and Photonics; (2005) https://doi.org/10.1117/12.567358
Event: 26th International Congress on High-Speed Photography and Photonics, 2004, Alexandria, Virginia, United States

Abstract

Spray processes are commonly employed in many kinds of surface treatment applications, most prominently in medical, material processing and manufacturing industries. While spraying is a well established technology, we still lack complete understanding of all interactions within a given spray process. This is because the physical models of many subprocesses, like turbulent gas flow, particle formation and gas-particle interaction, are limited and often provide only qualitative predictions on the real process. Imaging measurements are essential in gaining better understanding of a spray process. They offer a way to measure properties of both the complete spray plume and individual droplets. A spray analysis system typically requires a high-power stroboscopic light source; Xe flashlamps and Q-switched solid state lasers have been the most common choice until recently. The development of high-power diode lasers has provided a versatile, low-cost and easy to use light source for the analysis of spray processes. We present a real-time diode laser based imaging system to measure droplet density, size and velocity distributions in a spray, together with the spray plume geometry.

Citation Download Citation

Jussi Larjo "High-power diode lasers in spray process diagnostics", Proc. SPIE 5580, 26th International Congress on High-Speed Photography and Photonics, (17 March 2005); https://doi.org/10.1117/12.567358

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available