Which Sensor Should I Use to Measure Swelling?

Projects General Guidance
1

Hi Everyone!

I am trying to measure the pressure of swelling caused by knee osteoarthritis against a knee brace. I want to use a stretch sensor and a pressure sensor. The stretch sensor will quantify the size of the knee and how much it enlarges due to swelling. And the pressure sensor is used to verify the stretch sensor and determine the pressure of the swelling against the brace. Are both necessary or just one?

These are the ones I plan to use.

Stretch sensor: https://www.adafruit.com/product/519

Pressure Sensor: Amazon.com: Thin Film Pressure Sensor Flex Sensor Bend Sensor ZD10-100 500g Resistance Type Sensor Thin Film Pressure Sensor Force Sensing Resistor, Force Sensitive Resistor Pressure : Industrial & Scientific

Any guidance would be so helpful!

Thanks!

2

Well, the stretch sensor will measure overall swelling, while the pressure sensor will measure a point swelling. It’s your project, so what will work for the project?

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3

Find a library or two or three for each sensor then look at the sample code for each library. copy and paste from those to get started.

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4

Thank you!