I have some issue measuring a circumference /m3 of a burried fuel tank,without having any manufacturer calibration board :
here a exemple picture of fuel tank :http://tirbordertown.com.au/wp-content/uploads/2010/02/large-fuel-tank-400x300.jpg
i was thinking of manking some IR distance inside the tank to measure distance, but the Sharp one only have 150 CM range.
With the ultrasonic radar is the same issue, only 5 metres max i guess.
Please let me know if you have an idea or anything that can help me measure a fuel Tank, even when it’s full.
Thanks a lot!!