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Thermal porn

Just bought a phone with a thermal camera (Blackview BV9800 Pro). Here are a couple of images from the LOM Praha M337 engine on a Zlin Z43 right after landing. The thermal image is overlaid on the regular camera image. For now, it’s just “porn”, but I hope to develop it into something of research value in the coming weeks.


Last Edited by Ultranomad at 01 Jun 11:26
LKBU (near Prague), Czech Republic

well, do I dare? Yes I do, that is pretty cool

Dan
ain't the Destination, but the Journey
LSZF, Switzerland

That’s very cool, could be good to detect exhaust leaks for example ?

EGTF, LFTF

denopa wrote:

could be good to detect exhaust leaks

Yes, but you’ll obviously have to do it with the engine running. Here is an example of a much gentler “exhaust leak” being detected (not by me)

LKBU (near Prague), Czech Republic

I have a FLIR ONE PRO (USB-C; plugs into my S10E phone) and it’s been brilliant for tracking down temperature gradients on PCBs, finding hotspots, etc.

I will try it on my next aircraft service.

Administrator
Shoreham EGKA, United Kingdom

Great tool!

Now we can solve a question how to cool down a turbocharged engine!
Some say that the turbo is coldest at the touchdown after a low power descend and there is no need to cool it down if we didn’t use high power for taxi to parking.
Some claim that 5 minutes of 900rpm is required at the ramp no matter what.



If we could just mount somehow the thermal camera inside the cowling…

Poland

@Ultranomad unfortunately that cat farting video is fake…

Firstly these LWIR imagers won’t show any actual gas, secondly that video must be fake anyway because the colours of the fart cloud are not part of the colour palette used :)

I’ve tried to use a Flir Boson which is vastly better than the Lepton sensor in the Flir One to find an exhaust leak on a car, and I can say there is absolutely no way whatsoever that you’ll see leaking exhaust gases with one of these cameras. It’s impossible. The only way to do this would be to mount some material near the suspected leak and you’ll then see the leaking gasses heating up the material.

United Kingdom

IO390 wrote:

The only way to do this would be to mount some material near the suspected leak and you’ll then see the leaking gasses heating up the material.

Thanks! Yes, the video with cats is fake indeed. As to exhaust leaks, I will try to explore different possibilities, time permitting.

LKBU (near Prague), Czech Republic

Using fibre optics in conjunction with thermal imaging can produce very interesting results.
Changes in temperature of +/- 1° C over different parts of the fibre strand can be measured.
In the electricity industry they are used to measure changes in temperature over different parts of a transformer.
One UK company York Technology also developed a system which by putting a fibre optic cable through every room in a hotel or office block they could measure such changes in temperature in each room which was patented as both a fire protection and burglar protection system.
If thermal imaging cannot measure a gas, how.does ot measure heat escape from a house?
The colours on a thermal image are all fake.
Thermal imagers produce shades of grey and it is software that adds the colours and that can be changed to show different colours for different temperatures.
I have not seen the cat.

France

gallois wrote:

If thermal imaging cannot measure a gas, how.does ot measure heat escape from a house?

Air is transparent to near-infrared, and the density of air is – order of magnitude – 1/1000th of the density of a solid.

This means that any infrared you “see” – however it is represented, greyscale or colour – is 99.9% the infrared emitted by the surfaces of the engine / house / cat, and you don’t really see any infrared emitted by the air.

Biggin Hill
12 Posts
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