Hello,
Just a little post for presenting to you my first little DIY "thermo camera"... A first attempt for help me to learn more in this domain.
It is based on:
- a thermal core Indigo "micro" A10:
160x120,
Vox pixel 51umx51um,
NETD <=85 mK (i am not sure with which optics it was estimated in the factory) in "sensitive mode" (range of measured temperature in this mode <= 150°C),
and optics included with the core: 8mm, f/1.2.
working in automatic mode: "power in"/"video out".
- a viewfinder receiving video signal (NTSC or PAL standard: 640x480) (Modèle VF-2C not anymore produced, but easily repleacable by more recent modele Chinese module to be found on E-Bay, Banggood, Ali...., and so on...)
- a small powerbank 5V, i do not remember the capacity, few thousands of mAh, double output, for feeding the view-finder and the thermal core.
- wires, one old switch, salvaged usb plugs, tape, sushi sticks... glue, one table corner,...
Nothing ambitious, but happy i am to have been successful to "build" my first thermal item.
Here is the little Guizmo (photos at the end of the post).
And here just two photos from the item in actions, showing warm water tubing embedded in my floor and thermal scene from inside of a warm living room and cold outdoor visible from the open window-door.
We can see warmth for the embedded tubing coming through the carpet, the opacity to LWIR from the plastic cover, and windows of course, the non intuitive (for a beginner like me) view of the opaque windows and thermal contrast between outside and inside.
The 640x480 viewfinder allows to benefit completly from the resolution (640x480) from the sensor.
I will investigate to learn more and optimize this small system: finding a faster optics for increasing the global NETD, and with a bit longer focal length, thinking about slightly cooling, refreshing the jacket of the lens, from external side, and so on....
Thank you for your patience for reading my small fantaisies...
Best regards.
Stéphane