I just came across this little gadget called "button load cell", it seems to be a sensor that can measure weight but what exactly does it do? What is its intended application? I do not even have an idea about how to install it correctly(nipple facing upwards?).
This is the one I have by the way. I am not familiar with the terms used in the description page. I have no electrical engineering background and I did not do my physics in English.
Edit: I want to know the mechanics of this gadget(as in how it works). As far as my own study goes, it seems to be measuring the change of shape to derive applied force? But in the description it says
Load cells are designed to measure a specific force, and ignore other forces being applied. which makes no sense to me.
Also I would like to know the real life application of this gadget. I can imagine using it in a scale but where else can it be useful?