Patent ID: 8441250

Claim:
A method for using at least one static probe during performance of a polymerization reaction in a fluid bed reactor system to monitor a coating on a surface of the reactor system and a distal portion of said at least one static probe, wherein the coating is exposed to flowing fluid within the system during performance of the method, said method including steps of: (a) during a first interval of time during performance of the reaction in the reactor system, operating said at least one static probe to generate high speed data indicative of bubbling in the fluid bed; and (b) determining from the high speed data at least one electrical property of the coating; wherein the first interval of time includes a set of subintervals, and step (b) further includes the steps of: determining cross correlated values, by determining for said each subinterval of the first interval, a cross correlation of the high speed data generated in the subinterval with one of said high speed data generated in the subinterval and a processed version of said high speed data generated in the subinterval; and determining electrical potential in the fluid bed during said each subinterval of the first interval from the high speed data and the cross correlated values.