I am currently looking for a way to increase the sound pressure of normal bicycle bells by changing the directivity pattern of the sound. This is the first thing which is cheap and simple but promising:
Any ideas or comments are welcome.
If you try it out for yourselves, I'd appreciate your feedback.
We mooved here because the extreme long comment section have to end.
So this should be a possibility to develoop a precise, cheap and of course printable Tensiometer like this: https://www.thingiverse.com/thing:2810089/#comment-1835147