Pro/Forums - View Single Post - can we agree on the basis of "C" in C/W ?

BillA · 11-14-2005, 08:13 AM

IC
yes, the same as for the air temps
the intent is to use the longer time constant to smooth the readings (steady state avg)

as Les has noted, the cal procedure needs to be developed - what exists is terribly crude

Les
it is going to be frighteningly difficult for me to make a ref flowing air temp source to cal the air probes

not sure if self heating is an issue when caled in the medium with the inst, I see the effect every time I switch from front to back (wait 10 sec. to start recording)
and likewise any 'surface effect' as I cal in flowing conditions
??
most of this can be obviated with a tailored cal procedure I think

nice graph
the increasing dP should limit the efficiency, be interesting to put more pump to it

11-14-2005, 08:13 AM	#134
BillA CoolingWorks Tech Guy Formerly "Unregistered" Join Date: Dec 2000 Location: Posts: 2,371.493,106 Posts: 4,440	IC yes, the same as for the air temps the intent is to use the longer time constant to smooth the readings (steady state avg) as Les has noted, the cal procedure needs to be developed - what exists is terribly crude Les it is going to be frighteningly difficult for me to make a ref flowing air temp source to cal the air probes not sure if self heating is an issue when caled in the medium with the inst, I see the effect every time I switch from front to back (wait 10 sec. to start recording) and likewise any 'surface effect' as I cal in flowing conditions ?? most of this can be obviated with a tailored cal procedure I think nice graph the increasing dP should limit the efficiency, be interesting to put more pump to it Last edited by BillA; 11-14-2005 at 08:19 AM.