Well yes, the title is not misleading.
Hello everyone, this is my first posting here, andit starts with a question.
I thinking about making an electronic target system, for airguns.
Setup:
4 mics in a square about 20 cm apart. and a pic18 / pic24 those are what i have available.
But for this setup to be usable i need 1/10mm accuracy (preferred)
So i need to be able to tell the difference in time between the sound reaching two mics...
speed of sound approx 340m/s
google says the sound uses 2.94117647 × 10-7 seconds to travel this distance and i need to detect interrupts a lot quicker than this to keep the 1/10mm resolution. at 40Mhz i get the time for one operation to be 2.5 × 10-8 just 10 times quicker.
Can i just give up now, or does anyone have some good ideas to keep me going?
thanks. Tom.
Hello everyone, this is my first posting here, andit starts with a question.
I thinking about making an electronic target system, for airguns.
Setup:
4 mics in a square about 20 cm apart. and a pic18 / pic24 those are what i have available.
But for this setup to be usable i need 1/10mm accuracy (preferred)
So i need to be able to tell the difference in time between the sound reaching two mics...
speed of sound approx 340m/s
google says the sound uses 2.94117647 × 10-7 seconds to travel this distance and i need to detect interrupts a lot quicker than this to keep the 1/10mm resolution. at 40Mhz i get the time for one operation to be 2.5 × 10-8 just 10 times quicker.
Can i just give up now, or does anyone have some good ideas to keep me going?
thanks. Tom.