Patent ID: 6636055
Filing Date: 2003-10-21
Classification: C21C,C22B,H05B,Y02P

Abstract:
An apparatus for determining the condition of an electrode during baking thereof in which a change of phase occurs, comprising:a) hoop means having open upper and lower ends and constructed and arranged to confine a paste descending therethrough during baking thereof into a predetermined shape, with baked paste exiting from the open lower end; b) an electrical conductor disposed generally vertically within the hoop means and around which the paste bakes, said conductor having a first upper end generally above the hoop means, and a second, lower end; c) means for generating an electrical current of low power and variable frequency; d) an electrically conductive plate constructed and arrange for electrical contact with the electrode during baking, disposed at the lower end of the hoop means; e) means for passing the electrical current from the generating means between the upper end of the electrical conductor and the electrically conductive plate; and f) means for analyzing an electrical signal between the upper end of the electrical conductor and the electrically conductive plate for impedance.