摘要:
One method of forming a sensor (10) comprises: disposing a reference electrode (22) and sensing electrode (20) on opposite sides of an electrolyte and a heater (62) on a side of the reference electrode (22) opposite the electrolyte to form a sensor element having a sensing end adjacent the reference electrode (22) and sensing electrode (20), dipping the sensor element in a first slurry, drying the sensor element to form a first coated sensor element, dipping the first coated sensor element into a second slurry, and drying the first coated sensor element to form a dipped sensor element.