I am trying to create a 4 in cube with a force sensor that measures how much force I am squeezing this cube. At first I was looking at using a strain gauge, and also a load cell. I’ve seen pressure sensors that seemed to get a qualitative reading, but not much of a qualitative reading. I need to have readings of 0-10 Newtons of force with probably no more than + or - 0.2 N accuracy.
So to sum up, what kind of force sensor should I buy that will make the most sense for this kind of project?
If a load cell is to be used, the cube must be designed with this force measuring in mind. Two opposite sides of the cube need to be able to move independently of each other. Visualize two parallel plates with a load cell inside connecting the two. On a normal scale platform, leveling feet would be threaded into the bottom plate and a stainless pan set over the top plate. However, this means that the four remaining sides will not measure the applied force.
Here’s a datasheet for an S-beam load cell series that looks promising:
https://www.flintec.com/media/downloads … eet-en.pdf
It’s compact and fairly low capacity to yield a decent resolution.