Hey guys! I’m trying to use the Sensel Morph to measure how much force my fingers are pressing with and am wondering what the accuracy and precision are across all locations on the surface of the morph. Ideally the readings would be extremely repeatable regardless of where you press on the surface.
Here’s what I know so far:
- Based on the documentation http://guide.sensel.com/api/, it says “Force Array: Value range=0-8192, Units=grams” which is great good to know.
- Various sources also claim a range of between 2grams to 5kg, which is great good to know.
- However I cannot find how consistent these force readings are across different locations on the screen. Especially since when I use the visualizer in the Sensel App and drag my finger with constant force across the sensing screen, the force values oscillate quite substantially even when I am applying constant force. See here for a video of what I mean. https://youtu.be/QBgcSi_UmR8
So my question is, does anyone know whether the oscillation is expected behavior? In which case, does that mean that the force readings are only accurate on certain locations on the screen? Or is there another way to get consistent force readings regardless of location on the morph?
Thanks in advance! Any pointers would already be super helpful!