Quote:
Originally Posted by Seden
I've been looking at using one of those non-contact Digital Infrared Thermometers for detecting ore bodies and was wondering if anyone has ever used one? The 30:1 units are in the low $100USD range so much cheaper than a Thermal Imaging Camera and might even be useful for treasure hunting in the fall or spring when there's a larger temperature variation between day and evenings which would be the time to take readings.
What say ye?
Randy
|
Hi,
the thermometer idea I think will not work, unless a very big object is under few depth of flat soil... possibly sand, I see it better than humid soil... as described by JP.
I see also just thermal camera, even low resolution, as unique possibility in thermal scan for objects buried.
But the problem, as always, is soil... gradient attenuation due to water trapped in the soil is a real pain in the *** I think at interesting depth.
Also, I think maybe a cooled (very hard cooled, say liquid nitrogen stuff...) is required to achieve required accurancy and resolution in small thermal variations due to targets. I don't belive semiconductor stuff can produce accurate results at room/normal temperature.
If so... the camera will be heavy... and whole system will costs a lot... considering you've to spend also for liquid nitrogen stuff... and not easy to operate I think.
Kind regards,
Max