Bob,
What do you want the thermocouples for? ie what temperature?
I have never used Niobium - Iridium thermocouples in the glass
industry. We always used type S, and type B for more stable results
over years duration, for things like furnace crowns at 1550C, but this
had the disadvantage of smaller output. The platinum migrates to the Rh
leg over time, but we found a minimum wire diameter was also necessary
for long life due to crystallization of Pl.
AA
On 3/27/2017 2:30 PM, Bob Higgins wrote:
Regarding the Nb-Ir thermocouples ... Bob, can you suggest a source
for these thermocouples and their voltage calibration data? For my
experiments, the cost of the hardware is coming out of my own pocket -
not someone else's deep pocket. For k-type thermocouples, the
voltage-temperature profile is built into my DAQ. For the Nb-Ir, I
suspect, I will have to read the voltage and convert it to temperature
with a custom LUT in Labview. All doable if the voltage is not too
low to be noisy and if the couples are not too expensive.
On Mon, Mar 27, 2017 at 11:43 AM, <bobcook39...@gmail.com
<mailto:bobcook39...@gmail.com>> wrote:
Jones—
You note regarding the Lugano test and Higgins assessment the
following:
“The systemic optical false assumptions have rendered any further
conclusion unscientific. Levi was reportedly paid an enormous
amount of money by Elforsk and yet made stupid errors, notably
failing to use high temp thermocouples for verification - plus he
also failed to calibrate near the running temperature -
unforgivable, since his errors have poisoned the positive aspects.”
I recently made the same comment about using good high temperature
T/C’s to Higgins with respect to his own Ni-H automated test at
MFMP. I suggested he use a Nb-Ir couple for high temperature
measurements of the outside of his glow stick-like experiment.
The couple is good for more than 2000 C I believe.
With a high temperature LENR heat source the Niobium/Iridium combo
is a reasonable thermo-electric source of power as well, and it
could well replace Pu-238 as a reliable, long-term power supply
for remote locations or space applications without the hazard
associated with Pu-238.
Bob Cook
