VincentG wrote: ↑Sun May 05, 2024 8:07 am
Tom, in the name of science I spray painted half of a Pyrex bowl flat black and tested with the thermal gun at room temperature and after hot water exposure.
There was no discernable difference except for a small variation where the paint transitioned to clear glass.
I also tested a piece of black plastic and stainless steel side by side at room temperature.
No difference.
I have previously seen large differences between surfaces but thinking back that was at much higher temperatures in automotive applications.
Maybe at lower temperatures there's much less variation.
Still, I think these tiny engines have too much thermal transfer through the body compared to the miniscule amount of gas inside to make any concrete conclusions.
Once the volume of gas can transfer more energy than the body of the engine itself, then IMO, conclusions can be drawn.
Don't know what your suggesting or trying to say exactly.
My thermal gun/camera thing, as I said, uses colors as an indicator of RELATIVE temperature.
Hotter<white,red,,green,blue,black>Colder
Actual temperature readings are digital.
Spot temperature, Highest, Lowest are all displayed digitally simultaneously.
The display color. contrast is adjustable. If a temperature difference of say 0.1°C is not showing up you can increase the contrast until it does. You might call that the "sensitivity".
So if your target has only a few degrees ∆T and the temperature difference color display is not showing up on the screen you can very easily increase the contrast/sensitivity by just clicking on up and down arrow buttons on the handle until it does.
Can't draw "any" conclusions? from temperature readings?
Are you loony? A temperature reading is a temperature reading. Easy peasy. It isn't rocket science.
One has to wonder why some forum members here pile mounds of horse shit on top of quite clear and obvious temperature readings and simple irrefutable video recorded experimental findings.
