smartknob icon indicating copy to clipboard operation
smartknob copied to clipboard

Use FSR instead of Strain Gauge

Open Chaphasilor opened this issue 2 years ago • 2 comments

Hi there,

as you've mentioned multiple times in the readme, working with strain gauges isn't trivial, so it's easy to screw up when mounting them to the PCB. You can practice mounting them somewhere else beforehand of course, but that means ordering more units than you'd actually need.

I'm currently working on a project where I also need to detect pressure being applied to something, and I've found that Force-Sensitive Resistors (FSRs) are quite easy to work with and offer a straight-forward implementation when it comes to measuring force.
Here's an example of what I'm talking about They usually are a bit more expensive, but as I mentioned, working with them is probably easier than using strain gauges.

Maybe give them a try? :)

Chaphasilor avatar Mar 19 '22 12:03 Chaphasilor

Even easier would be this solution: https://github.com/IvDm/Z-probe-on-smd-resistors-2512

st157322 avatar Mar 21 '22 07:03 st157322

Another thing to consider is inductive sensing (for example the TI LDC3113). This allows measuring micrometer level displacement (to a metal target).

omdathetkan avatar Apr 08 '22 08:04 omdathetkan