3 ms·
Don’t you also measure the current of the “inner probes” (the ones “driving a current”), to verify that you do have contact?!
by stolsvik 3y ago
Don’t you also measure the current of the “inner probes” (the ones “driving a current”), to verify that you do have contact?!
- VygmraMGVl 3y agoYou drive current through the outer probes. The inner probes measure voltage and are not driven. When measuring non-zero resistance, you can vary the driving current to confirm the voltage you measure also varies linearly (ex thermal effects, capacitance of the material etc.). When measuring zero resistance, you can't distinguish vs a voltage probe error.