Hi,

Our team started a measurement toolkit to evaluate how force is distributed in the fingers (thumb or index) in manual therapy, our specific case of interest are osteopathy practicioners.

We focused on an open source model (Arduino) to set up all the data recordings, but now we are wondering what could be the best sensor to evaluate a few newtons with good reliability in our circuit. In those months we are using a force resistance sensor where the resistance of the circuit depends on the force applied in the sensor. Is there another sensor that can reproduce the applied force and be usable to be placed between the finger and the body/materials to provide better measurements? Actually our measurements are going well, our accuracy is around +-.05 of error, but we want to reach lower values. Another problem is that our sensor saturated after some measurements, stopping to work properly until the two resistance plates detached again (I guess by me).

Are there actually better sensors than FRS to accomplish this task?