Thank you all for your kind responses.
Yeah the sensor is piezoelectric. But for measuring the impulse magnitude of a shock, rather than the vibration, can we just take the first large positive curve and ignore the rest of the oscillations?
With the TI LMC6482, it kinda rectified the output a bit. It just saturated to 3V too easily.
I've ordered some samples of the MAX4206, so will report on how I get on.
Can I try the set up shown on Figure 4a on the data sheet which was for a photodiode measurement?
Should I change any of the resistors or capacitors values?
Apologies for so many questions. I'm totally new to log amp, and the idea of utilising 5-decade dynamic range. Does that mean the impact force F is proportional to the logarithm ln(Vout)?
Or rather, proportional to the logarithm of ln(charge), which means ln(integral(Vout))?
Finally, is there a simple way to carryout the integral of Vout?
Yeah I'll be running it on a 3V button battery with an Arduino, so hope the MAX4206 would be alright.
Cheers.