Strain gauge z-probe max voltage
Gabriel last edited by
I successfully use a strain gauge with an amplifier at the entrance of the Z-probe. The amplifier has an output voltage of -10 V to +10 V for -20 N to +20 N. Which maximum voltage is supported in the long term with the input of the Z-probe? Is the Z-Probe value equivalent to the voltage?
So far, no problems have occurred.
Thank you in advance,
3ddevil last edited by 3ddevil
@Gabriel You can safely assume 3.3V and that it's probably a little daring to go up to 5V, but anything over 3.3V should read at max.
Use a voltage divider, or clamp top voltage using a diode. 10V isn't safe directly to the ATSAM as an input unless it's going through a buffer chip.
Gabriel last edited by Gabriel
Thanks 3ddevil for your fast reply. I'll try one of your solutions. As long as the voltage is in the range between trigger value 0 and 1000 it shouldn't be dangerous, right?
Thanks a lot in advance.