Erscheint 12 Ausgaben pro Jahr
ISSN Druckformat: 1044-5110
ISSN Online: 1936-2684
Indexed in
ACCOUNTING FOR DEPTH OF FIELD IN SIZING SPHERICAL PARTICLES BY IMAGING
ABSTRAKT
A general approach to correcting for depth-of-field effects in sizing spherical particles by imaging is presented, and shown to reduce to two other well-known but heretofore apparently unrelated methods as special cases. The approach is adaptable to a wide variety of conditions by means of functions that are measured during calibration. Most generally, correcting for depth-of-field effects requires traversing the object plane through the particle field. However, conditions are identified that allow proper corrections to be made without having to move the object plane. The dynamic range of an instrument as a function of distance from the object plane, or the dynamic envelope, measured during calibration will not necessarily be the same as the one actually realized in measurement, which can be significantly different. This must be taken into account as part of the measurement process.
-
Hung David L. S., Zhong Jie, Experimental Analysis of the Start of Fuel Cycle-to-Cycle Variations of Solenoid-Actuated High Pressure Fuel Injectors, SAE Technical Paper Series, 1, 2011. Crossref