get_floating_potential

plasmapy.diagnostics.langmuir.get_floating_potential(probe_characteristic, return_arg=False)

Implement the simplest but crudest method for obtaining an estimate of the floating potential from the probe characteristic.

Parameters:

• probe_characteristic (Characteristic) – The probe characteristic that is being analyzed.
• return_arg (bool, optional) – Controls whether or not the argument of the floating potential within the characteristic array should be returned instead of the value of the voltage. Default is False.

Returns:

V_F – Estimate of the floating potential in units convertible to V.

Return type:

Quantity

Notes

The method used in this function takes the probe current closest to zero Amperes as the floating potential.