I'm struggling with the following problem:
I have an inverted pyramid, supported in four points, filled with maize up to 600KG.
I want to keep track of the level of maize inside the inverted pyramid.
I've thought about using a load cell but this can be expensive and I need a cheap solution to implement. I also thought about using a sensor centred on top of the inverted pyramid.
The problem here is that I really dont't know what kind of sensor can be used to get correct values. Can ultrasonic sensors give me bad values? The pyramid form is tricky...
PS: Theoricly can mill be too reflective and influence the result of measures?
I'm sorry for the English :P. I'm still learning.
If anyone can help I really appreciate.