#garfield Logs

May 09 2017

05:45 PM zhanx: you didn't tell me
05:48 PM zhanx: Sorry I was already in bed
09:20 PM rue_house: are you in bed now?
09:40 PM Tom_L: not yet
09:55 PM zhanx: not yet
11:42 PM rue_shop3: zhanx,
11:42 PM rue_shop3: a piezo outputs voltage prop to change in force, so its delta force
11:42 PM rue_shop3: a capacitor integrates charge
11:43 PM rue_shop3: the gate of a mosfet is a capacitor
11:43 PM rue_shop3: so, if you hook a piezo to the gate of a fet it will give you a resistance proportional to the absolute force on it
11:43 PM rue_shop3: !!
11:43 PM rue_shop3: there is a TINY drift, but I think its managable