<em>In Situ</em> Aerosol Detector

An affordable technology designed to facilitate extensive global atmospheric aerosol measurements has been developed. This lightweight instrument is compatible with newly developed platforms such as tethered balloons, blimps, kites, and even disposable instruments such as dropsondes. This technology is based on detection of light scattered by aerosol particles where an optical layout is used to enhance the performance of the laboratory prototype instrument, which allows detection of smaller aerosol particles and improves the accuracy of aerosol particle size measurement.

It has been determined that using focused illumination geometry without any apertures is advantageous over using the originally proposed collimated beam/slit geometry (that is supposed to produce uniform illumination over the beam cross-section). The illumination source is used more efficiently, which allows detection of smaller aerosol particles. Second, the obtained integral scattered light intensity measured for the particle can be corrected for the beam intensity profile inhomogeneity based on the measured beam intensity profile and measured particle location. The particle location (coordinates) in the illuminated sample volume is determined based on the information contained in the image frame. The procedure considerably improves the accuracy of determination of the aerosol particle size.

This work was done by Andrei Vakhtin of Vista Photonics and Lev Krasnoperov of New Jersey Institute of Technology for Goddard Space Flight Center. GSC-15879-1

This Brief includes a Technical Support Package (TSP).

In-Situ Aerosol Detector (reference GSC-15879-1) is currently available for download from the TSP library.

Please Login at the top of the page to download.


White Papers

External Power Supply Efficiency Regulation Introduction
Sponsored by mega electronics
High-Speed Switched Serial Fabrics Improve System Design
Sponsored by Pentek
Survival of the fittest - the process control imperative
Sponsored by renishaw
Finding the Right Manufacturer for Your Design
Sponsored by Sunstone Circuits
When Wire Feedthroughs Make Sense
Sponsored by douglas electrical components
3D Printing: Changing the Economics of Manufacturing Custom Components
Sponsored by stratasys

White Papers Sponsored By: