Recent content by joe_lou

no, the signals are currently read directly by the microcontroller

This is the exact trade-off I'm experiencing. I'm digitally implementing the filter and am just manually tuning until I get the behavior that is "acceptable". I'm really wondering if I can get it better though...

I'm using an AVR (atmega8a) and I'm currently digitally implementing a high-pass filter in my code. I've been tweaking the parameters on that filter...as someone mentioned I can program a very slow cut-off frequency but that introduces phase lag. If the cut-off frequency is higher, the accuracy...

Thanks -- I'm reading the signal with an 8-bit microcontroller. I am vaguely familiar with DFT but it may be too much for the controller I'm using.

Getting rid of DC response from sensor Hi, I'm trying to sense higher frequency vibrations (3-10 Hz) for a project (just the amplitude). I decided to use an accelerometer that will be slowly changing orientation so the DC offset will be changing with time. I want to get rid of this offset as...

Hi, I have an interesting problem: most people use accelerometers to sense orientation and thus measure the DC output value. What I'm trying to do is sense higher frequency vibrations (3-10 Hz). The accelerometer will also be slowly changing orientation so the DC offset will be changing...