"Gord Beaman" wrote in message
news
Jim Yanik wrote:


I fail to see how the separate thermocouples outputs will be
"averaged",because any individual TC cannot rise in output,as all the
others parallelled will prevent any rise in voltage.Or current would flow
from a higher V to a lower one,just as if you wired batteries of
different
voltages together,you end up with circulating currents until all cells
are
of equal voltage..
Seems to me that parallelling them is only for the possibility of an
individual thermocouple to be burned out or open.

Jim, as I mentioned before they do average. If you connected say
flashlight batteries of slightly different voltages in parallel
then quite high currents would flow because their internal
resistance is low but thermocouples have comparatively high
resistance therefore limiting the current that will flow.

Which makes a higher voltage.

Quit while you are ahead, Gord, Danno has been hitting the bong.