It works fairly decent, both use a falling powder configuration to detect fluctuations in pressure, and any slight reverberations that can be picked up on. One.is more sensitive, almost like an electronic ear. It cannot detect different levels of pressure intensity, for that is near impossible at this size. I haven't tried other configurations recently, I just wanted to improve on the falling powder design. I hope u like.
Yes, but that's a sign, not using any materials. This uses a falling powder design. I'm currently working on a better non-glitchy prototype, and one that detects from all directions.
Good idea @Catelite, but sometimes it is better to have the extra resounding pressure, to simulate sound waves, on here, in the form of pressure. I will definetly try it though, thanks for the help :p
Edit: @Catelite srry now I see what your saying, resounding pressure within the device wouldn't really be effective.
If you want to make one that detects from all sides, try a circular air filter wall, with really cold quarts in a circle, with a detector wall directly behind it to sense breaking quarts. To fix gravity affecting falling powder, try and turn gravity off. Like @Catelite said, use zero temp pump for elimination/Blocking of excess pressure waves :)
Thanks, I am still working on one that works from all angles so it will be more effective than on that only works from two sides. I probably shouldn't have put them inside of walls because it amplifies the pressure quite a bit; sometimes ruining the machine. I absolutely need to delete the TNT and c-4 I put there for testing purposes, it has a tendency to ruin the device when placed very close to it during testing