Dynamic pressure measurement according to Lin and Eagar
The dynamic pressure of the arc influences the weld pool movement and can lead to deformations of the liquid weld piece.
To measure the dynamic pressure, the arc is passed over a 0.5 mm hole positioned in a water-cooled copper plate. Using a piezoresistive pressure sensor, the dynamic pressure is measured in relation to the arc radius and can be used, for example, to validate TIG simulation models.
Prinzipdarstellung des Messaufbaus