3DTOPO - 18-4-2016 at 15:05
It is quite expensive to buy a infrared pyrometer capable of measuring over ~1000C.
I have an idea for making one out of an inexpensive 1000C rated pyrometer. What do you think would happen if I put a welding glass over its sensor? Or
acetylene smoked glass?
Seems like after covering it, I could "calibrate" it with materials of a known melting temperature. Would it work in reliable linear way if I had two
calibration points? e.g. melt iron for point one and titanium for point two?
Any thoughts/ideas? Thanks!
3DTOPO - 18-4-2016 at 18:53
Limiting the aperture seems to do the trick - with my first crude test. Something it says is 430F without the mask reads 300F with the mask.
I will try 3D printing an accurately sized one. Perhaps if I use say half the factory calibrated aperture, I could then just double the values of the
readout?!?
I follow up after more experiments.
yobbo II - 19-4-2016 at 07:52
Perhaps if you attach an optical fiber the the device it would act a an accurate hole and also make the device more easy to use as you are now placing
the end of a fiber at the temperature source. You would probably need a lens though at the fiber end would would not be so simple to do.
http://www.explainthatstuff.com/how-pyrometers-work.html
The 'manual' pyrometer sounds good but they say it needs regular calibration and skill to use.
yobbo II - 19-4-2016 at 13:56
http://www.metallab.net/pyrometer.php
Homemade hot wire pyrometer.