PDA

View Full Version : Yet another new toy, Thermal IR



macona
01-15-2014, 12:10 AM
A little video camera I got. Here is a screen shot of one of my PC's:

http://farm4.staticflickr.com/3700/11958744273_3f870f70d1.jpg (http://flic.kr/p/jdKG36)

boslab
01-15-2014, 12:25 AM
Thats an expensive toy! The fluke FLIR requires a bank loan to buy, we gave one to a crane driver in work to check for hot spots on the steel shell of the ladle, he dropped it, 200 feet from the cab to the floor, my boss told me to send it back under warranty!
Mark

macona
01-15-2014, 02:00 AM
The price has come down big time in the past few years. This camera was about $6k new at least 5 years ago. The company that made it says they have not made it in 10. It is a neat little camera, probably 1-1/2" in diameter and 4" long. Runs off anything from 4 to 20v DC and outputs a composite video signal at 320x240. I have a couple others that are 640x480 and one is cyro cooled with a ob-board stirling cycle cooler. I am still working on getting those going.

FLIR recently released a real cheap hand held imager, about $1000. The interesting thing is it is identical to their higher end version, just a different firmware to lower the resolution. Someone figured out how to modify the firmware and they have been flying off the shelves.

FLIR also announced a thermal imaging case for iPhones last week at CES for under $350, it is only 60x80 resolution but that is good enough for a lot of things.

http://www.flir.com/flirone/explore/tech-specs.html

doorknob
01-15-2014, 02:02 PM
FLIR recently released a real cheap hand held imager, about $1000. The interesting thing is it is identical to their higher end version, just a different firmware to lower the resolution. Someone figured out how to modify the firmware and they have been flying off the shelves.

[/url]

I'm guessing that that is the "E4" model. I'll have to look for a link to the firmware modification info.

BTW, you get to work with some really neat toys.

How can I get a job there?

(jk, I'm on the wrong coast)

Edit: OK, I think that I've found it:

http://hackaday.com/2013/11/04/manufacturer-crippled-flir-e4-thermal-camera-hacked-to-perform-as-high-end-model/

It would be just my luck to lay out $1K for one of those only to find out that FLIR had made some hardware changes to prevent that from working.

Paul Alciatore
01-15-2014, 02:46 PM
Not to worry, sooner or later someone will hack those hardware changes too.

I just hate people who do things like that. I mean, if the hardware is capable of higher resolution and it can be sold for the lower price, then WHY NOT SELL IT AT THAT PRICE????? You would have the jump on all the competition and a lot of satisfied customers. And probably more profits due to a greater volume of sales. But the marketing execs have to justify their existence by ruining the company.




I'm guessing that that is the "E4" model. I'll have to look for a link to the firmware modification info.

BTW, you get to work with some really neat toys.

How can I get a job there?

(jk, I'm on the wrong coast)

Edit: OK, I think that I've found it:

http://hackaday.com/2013/11/04/manufacturer-crippled-flir-e4-thermal-camera-hacked-to-perform-as-high-end-model/

It would be just my luck to lay out $1K for one of those only to find out that FLIR had made some hardware changes to prevent that from working.

macona
02-08-2014, 04:35 PM
I took one of the 640x480 uncooled cameras outside last night in the snow hooked to a laptop and recorded some video:


http://www.youtube.com/watch?v=w52pgutTrHw

Also got a fancier one going, this is a FLIR thermal camera that would come out of a $80,000 set of binoculars. The sensor is cooled down to 77K by a built-in stirling cycle cryochiller.

http://farm6.staticflickr.com/5509/12393405574_6422013088.jpg (http://flic.kr/p/jTarGs)

As for the Flir E4 hack, I did read some of the original thread on it over on EEVBlog and the higher end models have a much larger, better lens. Lenses are incredibly expensive, I have been trying to find a shorter focal length lens for these cameras and they are insanely expensive even used.

ikdor
02-08-2014, 04:52 PM
Can't you just buy a silicon lens from Edmund Optics, I'm sure it's cheaper than going the FLIR route.

Igor

macona
02-08-2014, 05:33 PM
Silicon does not work so well at the longer wavelengths that the uncooled cameras work at, Germanium is the material of choice for long wave. That and it is not just a generic lens, it is a compound lens just like a regular camera.

dp
02-08-2014, 05:41 PM
Interesting how it shows the windows re-radiating the heat conducted from inside the building.

macona
02-08-2014, 05:46 PM
I think that is mostly the screens over the parts of the windows that open. They are black coated nylon so they are more emissive than the glass and appear warmers when they are probably colder than the glass.