QuoteCan you think of a way to read the boundary electronically?I'm still working on that. So far, I have a [virtual] robot that runs up and down verticallyin the tube, but not sure what sensor it will use [TIC!]. It depends a lot upon the properties of the ice in the pool. Eg, a lot of ice cubes are perfectly clear, but the ones made by my refrigerator ice maker are full of air bubbles, and therefore appearwhite, which should be easy to detect from clear ice or water, by light scattering.
Can you think of a way to read the boundary electronically?
I might rather be skating.
Offhand I would think any kind of electrical conductivity measurement would be toovariable and difficult to calibrate. Possibly only a visual measurement will work robustly.
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