BF350 Module to Measure Stress on a Bottle

Other Hardware Sensors
1

Hello! I'm currently working on a project where I'm trying to measure the stress on the surface of a bottle as it's being pressurised. I was given the BF350 modules to work with and have attached one to it's surface. I should also note that I haven't much experience using these sensors.

Currently, I am able to obtain readings where the reading decreases from a no load state. After 2-3 bars of pressure the output drops to zero and adjusting the potentiometer leads to the same results. Wanted to ask what I could do to mitigate this and if my approach is even suitable for this scenario?

Thank you!

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Too little information.

For informed help, please read and follow the instructions in the "How to get the best out of this forum" post, linked at the head of every forum topic.

It is very important that you post a link the the exact module you have, the code, using code tags, and detail exactly how you attached the strain gauge strip to the bottle.

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3

That IMO indicates a creeping sensor with no stable connection to the surface.

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4

I had the same thought: improperly bonded strain gauge.

There are lots of tutorials on line for how to prepare various surfaces and attach strain gauges to them. One randomly chosen example.

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