Hey Guys, I am a real big noob when it comes to electronics.
I picked up this schematic and I made it , but my piezo sensor is getting clipped like mad. I got it hooked up to an arduino board and the voltage output goes from 0 to 5v right away. ( My op amps use 5 v). I need to lower the gain and I dont know which resistors control the gain.
http://www.maximintegrated.com/app-notes/index.mvp/id/1127
This is the schematic I used. I just need to know which resistors will change my gain. I should of just used an instrument amplfier But I dont have time to redo it .
I can see this is like a modified instrument amplifier.
Any help would be appreciated !
Ps. Can I just add a resistor at the end haha ( probably a dumb solution )
Thank you guys , I am really looking forward to learning about all this stuff
I picked up this schematic and I made it , but my piezo sensor is getting clipped like mad. I got it hooked up to an arduino board and the voltage output goes from 0 to 5v right away. ( My op amps use 5 v). I need to lower the gain and I dont know which resistors control the gain.
http://www.maximintegrated.com/app-notes/index.mvp/id/1127
This is the schematic I used. I just need to know which resistors will change my gain. I should of just used an instrument amplfier But I dont have time to redo it .
I can see this is like a modified instrument amplifier.
Any help would be appreciated !
Ps. Can I just add a resistor at the end haha ( probably a dumb solution )
Thank you guys , I am really looking forward to learning about all this stuff