Electronics > Projects, Designs, and Technical Stuff

Thermal Imagers

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olsenn:
Does anybody know of any DIY tutorials for making a thermal imager? I'm not sure if the neccessary components can even be purchased online (apart from purchasing a premade imager), but I'd like to learn more about how they work, and possibly make one if I can.

PeterG:
the most expensive component of a thermal imager is the thermal sensor itself and the optics. Building one yourself would probable cost more than purchasing one online.

It would make am interesting project tho.

Regards

Psi:
You could buy one of those ~$50 non-contact digital infrared thermometers (the kind you point at an object and it reports temperature)

Then take it apart and somehow mount the sensor and optics on a scanning motor so you can build an image of a 2D area by reading values and position.

I have no idea if it would work but it wouldn't be too expensive to find out.

Rerouter:
from memory the simplest way to approach it is to remove the IR filtering lense from a webcam or camera and used a special type of exposed camera film to instead filter out all visible light,

last place i read up on them was how to make a touchscreen, however i suppose you might also be able to rip the sensor out of a wii remote, they have a somewhat amazing IR sensor in them, that tracks 4 points with its current circuitry, (4 brightest points)

sacherjj:

--- Quote from: Psi on March 28, 2012, 12:27:02 am ---You could buy one of those ~$50 non-contact digital infrared thermometers (the kind you point at an object and it reports temperature)

Then take it apart and somehow mount the sensor and optics on a scanning motor so you can build an image of a 2D area by reading values and position.

I have no idea if it would work but it wouldn't be too expensive to find out.

--- End quote ---

That is an interesting idea.  I wonder what type of update rate one of those sensors could handle.  It would be like HAM Radio Slow Scan TV.  :)

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