gar
Senior Member
- Location
- Ann Arbor, Michigan
- Occupation
- EE
110112-1259 EST
I need to calibrate a thermocouple somewhere around 650 deg F. I would like a material that can provide an accuracy better than +/-0.5 deg F. Anything in the range of 600 - 700 deg F is probably adequate.
63-37 tin-lead solder, eutectic, is listed at 361.4 deg F. This would be better than nothing but it is a big extrapolation to 650. Also I do not know how precise the alloy content is for commericial solder.
I have searched the Internet to a limited extent.
One interesting reference is
http://cmp.physics.iastate.edu/canfield/course/Calorimetry I.pdf
but has nothing to answer my specific question.
Maybe weressl might have some information.
When I ask this kind of question, then it leads to the question of fundamentally how do you make absolute temperature measurements? These have probably been done for many years with high accuracy, but probably not before 1850.
.
I need to calibrate a thermocouple somewhere around 650 deg F. I would like a material that can provide an accuracy better than +/-0.5 deg F. Anything in the range of 600 - 700 deg F is probably adequate.
63-37 tin-lead solder, eutectic, is listed at 361.4 deg F. This would be better than nothing but it is a big extrapolation to 650. Also I do not know how precise the alloy content is for commericial solder.
I have searched the Internet to a limited extent.
One interesting reference is
http://cmp.physics.iastate.edu/canfield/course/Calorimetry I.pdf
but has nothing to answer my specific question.
Maybe weressl might have some information.
When I ask this kind of question, then it leads to the question of fundamentally how do you make absolute temperature measurements? These have probably been done for many years with high accuracy, but probably not before 1850.
.