Real-time particulate mass measurement based on laser scattering

Julia H. Rentz; David Mansur; Robert Vaillancourt; Elizabeth Schundler; Thomas Evans

doi:10.1117/12.630714

8 November 2005 Real-time particulate mass measurement based on laser scattering

Julia H. Rentz, David Mansur, Robert Vaillancourt, Elizabeth Schundler, Thomas Evans

Author Affiliations +

Proceedings Volume 5993, Advanced Environmental, Chemical, and Biological Sensing Technologies III; 59930Q (2005) https://doi.org/10.1117/12.630714
Event: Optics East 2005, 2005, Boston, MA, United States

Abstract

OPTRA has developed a new approach to the determination of particulate size distribution from a measured, composite, laser angular scatter pattern. Drawing from the field of infrared spectroscopy, OPTRA has employed a multicomponent analysis technique which uniquely recognizes patterns associated with each particle size "bin" over a broad range of sizes. The technique is particularly appropriate for overlapping patterns where large signals are potentially obscuring weak ones. OPTRA has also investigated a method for accurately training the algorithms without the use of representative particles for any given application. This streamlined calibration applies a one-time measured "instrument function" to theoretical Mie patterns to create the training data for the algorithms. OPTRA has demonstrated this algorithmic technique on a compact, rugged, laser scatter sensor head we developed for gas turbine engine emissions measurements. The sensor contains a miniature violet solid state laser and an array of silicon photodiodes, both of which are commercial off the shelf. The algorithmic technique can also be used with any commercially available laser scatter system.

Citation Download Citation

Julia H. Rentz, David Mansur, Robert Vaillancourt, Elizabeth Schundler, and Thomas Evans "Real-time particulate mass measurement based on laser scattering", Proc. SPIE 5993, Advanced Environmental, Chemical, and Biological Sensing Technologies III, 59930Q (8 November 2005); https://doi.org/10.1117/12.630714

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