Shaped focal plane detectors for particle concentration and mean size observations.
We describe a method of designing shaped focal plane detectors for achieving a range of objectives in measurement of particles suspended in a fluid. These detectors can be designed to measure the total concentration in a wide size range (e.g. 200:1) or concentration in a size sub-range (e.g. 63<d<500 microm), and Sauter mean or volume mean diameter. The derivation of these shaped focal plane detectors is rooted in small-angle forward light scattering. The detector shapes are completely general, requiring no assumptions on underlying particle size distribution. We show the theoretical development, numerical simulations and laboratory test results.
Agrawal
Y C
YC
Sequoia Scientific, Inc., 2700 Richards Road, Bellevue, WA 98005, USA. yogi.agrawal@sequoiasci.com
Mikkelsen
Ole A
OA
D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation*; D007909:Lenses; D008027:Light; D009391:Nephelometry and Turbidimetry / Q000295:instrumentation*; D010316:Particle Size; D012542:Scattering, Radiation; D014159:Transducers