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DIY Thermal Imaging Camera

IR

Thermal imaging cameras – those really useful devices that give you Predator vision – are incredible tools. If you’re looking for heat escaping your house through a window, or just trying to figure out where your electronics project will explode next, they’re invaluable, if expensive, tools. [Kaptein QK] figured out an easy and cheap way to make your own thermal imaging camera using nothing just a few dollars worth of parts.

[Kaptein] based his camera off of a non-contact IR temperature gun. This device is useful for spot checking temperatures, but can’t produce an IR image like it’s $1000 cousins. By taking the thermopile out of this temperature gun, adding an op-amp, an A/D converter, and connecting it to an Arduino Nano with pan and tilt servos, [Kaptein] was able to slowly scan the thermopile over a scene and generate an image.

In the video below, you can see [Kaptein]‘s scanning camera in action reading the ambient temperature and creating an imaging program for his PC. It works very well, and there a lot more [Kaptein] can improve on this system; getting rid of the servos and moving to mirrors would hopefully speed everything up, and replacing the 8-bit grayscale display with colors would give a vastly improved dynamic range.

[Read more...]

Columbus Day: What are you working on?

Wow, Caribbean Conquest Day is such a dull holiday. If it’s a holiday at all: we’re at work today and you probably are too. We decided to post what we’re working on in hopes of breaking out of our holiday slump. Pictured above are two IR illuminator boards we assembled this weekend. We bought the kits from BG Micro. We’re planning on testing their camera blocking ability once we come up with a ~13V portable power source.

That’s what we’re doing. What have you been working on lately?

(If anyone can find a source for the welding goggles in the picture, we’d love to hear it.)

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