Hello,
I have a question about where do frequencies end and pulses start?
I'm trying to make an impact detection circuit, I have some sensors on a mat, and when something strikes the mat I get a small voltage (like
100mV).... so I'd like to amplify this 100mV to something around 1V....I've been reading up online on how to do this, and the app notes and other sources I've found say that it's important to take the frequency of my system into account and make sure my amp can handle that frequency range...
I don't know what the frequency of my system could be... if I get one impact a minute... is that even a frequency? or just detecting a pulse... do I even need to worry about the frequency range if I'm just detecting random events? maybe I start seeing 1 impact per second... now I'm at 1Hz.... does this require a special kind of op-amp?
Does a single voltage spike have a frequency associated with it that I need to take into consideration when creating my amplifier?
as you can see I'm pretty confused about this low frequency/impulse stuff.... any help is greatly appreciated, thanks!