Tracking my tremor

I’m just back from vacation and catching up on the forum - @OP_Engr thank you for pointing me to the Physics Toolbox Sensor Suite. I think this is just what I needed. I downloaded it and tested it just now. The G-Force meter gives a very clear picture of the tremor.

My method of holding the phone is pictured below. My goal is to perform an action that is:

  1. Likely to induce the tremor. In this case, deliberately attempting to hold my left thumb steady always induces the tremor.
  2. Is easy to do the same way all the time. As this picture shows, this way of holding the phone is pretty easy and repeatable.

It took a bit of practice to figure out how to hold it, but I think I’ve got it figured out so that it will comparable from measurement to measurement.

Here is a screen capture that shows my tremor:

I just had a friend try it - she doesn’t have a tremor. She held the phone in the same way and this is the picture. Clearly different.

The app also provides a simple csv export - hooray! What I’d like to do now is convert this measurement into a score I can use for my left and right hand. I’m thinking that this score will be my dependent variable. I’m especially interested in how the tremor varies over the course of a day. I have a sense that it varies a lot, but I’m really not certain about the pattern or cause.

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