I'm not a mechanical engineer so please be patient with my descriptions and question.
I am working on a design for a device that needs to measure out different amounts of powders by volume (not weight!), for example ground spices. Without a mechanical engineering background I am basically winging it. But coming from a software engineering background, I imagine that there must be established patterns for this type of thing in mechanical engineering as well.
What are some go-to patterns and designs for measuring out powders in mechanical engineering design?
It doesn't have to be incredibly precise. Not as precise as, for example, a gun powder measuring device. These need to be rough measures, though precision wouldn't be a problem either.