Probe system for plasma arc welding plasma measurement

Abstract

The present invention relates to the field of plasma measurement technology, and discloses a probe system for plasma arc welding plasma measurement, including a control system, a probe device, a walking mechanism, and a signal receiving mechanism and a data processing mechanism, the probe device includes a base substrate and a probe, and is installed at an execution end of the walking mechanism, after a plasma arc is ignited and stabilized, the control system drives the walking mechanism to move the probe along a preset trajectory to an arc center measurement area, the signal receiving mechanism and the data processing mechanism process signals through a data validity judgment-curve fitting-parameter calculation-multiple experiment averaging procedure, and output characteristic parameters including electron temperature, ion density, Debye length, and ion mean free path. The components of the entire system are compactly connected and cooperate synergistically, the control system enables automated control, eliminating the need for manual intervention in probe movement and signal acquisition, and the operation is convenient and efficient.