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Aside from data processing-based methods of correcting coincidence for monodispersions and polydispersions, coincidence can also be corrected by hardware-based methods, implemented in the particle counting instrumentation. One of such methods is based on ignoring a pulse (pulse editing) generated by conciding particles, based on real-time analysis of the pulse shape (for example, Kachel 1990). Another, more recently developed method for correcting coincidence in measurements of the particle size distribution is based on measuring the average flight time of particles passing through the sensing zone of a particle counter as well as the average time between the particle passages (Taylor and Zheng 2003).
| CITATION: Jonasz M. 2006. Coincidence correction: Hardware-based (www.tpdsci.com/Tpc/ERMCoincHdw.php). In: Top. Part. Disp. Sci. (www.tpdsci.com). |
HISTORY: Published: 22-Feb-2006 Modified: 20-Jun-2006 Peer-reviewed: PENDING |
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