3 ms·
Trouble with single pixel thermal imaging is inertia - thermopiles have thermal mass, you cant take 1000 readings per second, you cant even take 100 readings p
by rasz_pl 12y ago
Trouble with single pixel thermal imaging is inertia - thermopiles have thermal mass, you cant take 1000 readings per second, you cant even take 100 readings per second. So while 1 pixel camera in visible light spectrum can work thanks to hi speed acquisition, thermal one will be beyond useless.
not to mention the wave of extremely cheap thermal imagers we got this year -Flir one, seek thermal, all in ~$200 price range.
- skierscott 12y agoI'm inclined to believe the FLIR One does not use "true" infrared. There's a portion of the visible spectrum that is nearly IR and it's possible to rely on some IR reflectivity phenomena. I looked at some other FLIR thermal cameras and found them to be much more expensive; thousands of dollars. However, there's no doubt a small mobile platform is very usable. The primary goal behind this work was not to make a product: it was to provide a proof of concept. We were interested in the image processing and showing that some heavy lifting could be done on a small mobile platform (the Raspberry Pi). You are correct about the acquisition rate. However, the acquisition rate was more limited by the motors to move the sensor into place.
- rasz_pl 12y agoFlir one is a proper uncooled microbolometer, Flir finally decided to innovate, use modern manufacturing processes/methods and build something cheap to make. Btw their $4000 E8 thermal camera has VERY SAME components inside (from 320x240 bolometer down to firmware) as $950 E4, only difference is digitally signed config file (that used to be hackable) Your platform might of been limited by motor speed, but once you reach 10-20 reads per second you will hit a brick wall of thermopile inertia and that will be the end.