Patent ID: 6544586
Filing Date: 2003-04-08
Classification: G01N

Abstract:
A method for manufacturing a gas sensor element comprising the steps of: providing a substantially cylindrical base body made of an unfired solid electrolyte material; rotating such substantially cylindrical base body about an axis; providing a moving surface adjacent such rotating, substantially cylindrical base body; applying a paste including roughening particles of material substantially similar to that of such base body and having a viscosity of 500 CPS to 1600 CPS onto such base body in such a manner that such paste is brought into contact with such base body and is moved in a direction opposite to a moving direction of such base body at a position of contact between the paste and such base body moving surface, moving such moving surface in a direction opposite to a moving direction of a portion of such rotating base body adjacent such moving surface to bring such paste into contact with such rotating base body and firing such base body coated with such paste to form a plurality of projections in a single layer on such base body.