Hey guys,
I'm kinda confused now. (And i thought the following was always clear to me..)
a) Can you explain me charge again? I'm not even kidding. Since I m confused about the following
b) You all know the piezoelectric effect i guess. So if i got a pressure sensor and change the pressure there is a change concerning the charge right? So how do i figure out the exact number of Q ? I would just use an OPAmp and look at the voltage. But somehow it doesnt work like that. Why? Isnt chare proportional to voltage and do i always have a certain amount of voltage if there is any charge?
and finally
c) How does the charge act on a capacitor if i got AC Voltage. (For different Frequenzies)
Cheers for your help.
BR
Alex
I'm kinda confused now. (And i thought the following was always clear to me..)
a) Can you explain me charge again? I'm not even kidding. Since I m confused about the following
b) You all know the piezoelectric effect i guess. So if i got a pressure sensor and change the pressure there is a change concerning the charge right? So how do i figure out the exact number of Q ? I would just use an OPAmp and look at the voltage. But somehow it doesnt work like that. Why? Isnt chare proportional to voltage and do i always have a certain amount of voltage if there is any charge?
and finally
c) How does the charge act on a capacitor if i got AC Voltage. (For different Frequenzies)
Cheers for your help.
BR
Alex