Hi friends;
For correction of some parameters i read the following formula

theta (critical) = sqrt((yrt)/yrt(ref)))

but i can not understand how i get the ref value of y and r. i think t is the reference temperature which is in our case is 80 deg f.
Secondly y and r of actual how i calculate?
regards

 

Please help
regards

 

CPC, or Corrected Parameter Control, is relatively "new" and not widely used. I think it was wise to post for help here, but it doesn't look like anyone here has any experience with it to be able to offer any help for your issue.