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Topic: How to measure level of sand in a bucket/tank (Read 813 times) previous topic - next topic


I need to remotely determine the level of sand in a tank.

Once the sand levels in the tank are low, I want to receive a notification or turn an LED on (so to remind me to refill it).

I was wondering if there were sensors out there that could help me with this.

One idea I had was to have a proximity sensor attached to the lid of the tank that would point straight down to measure the height of the sand pile (once it reached half the tank height I would turn an LED on).

This is probably a bad way to do this and I want to implement a more elegant/accurate system.

Help/advice would be appreciated!



Get an ultrasonic sensor and try what you suggested in your original post.
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Is it always dry sand, or can it sometimes be damp? Is the composition of the sand always substantially the same?
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Another possible approach is a light-beam across the tank that would be broken if the sand is high enough.
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