GAS SENSOR

摘要

PURPOSE: A gas sensor is provided to enhance the bonding intensities between a gas sensitive material and a sensing electrode and between a sensing electrode and a substrate by the regular gaps between sensing electrodes. CONSTITUTION: A gas sensor comprises a sensitive member receiving part(10), sensing electrodes(20,25), and a gas sensitive member(30). A groove(12), which comprises surfaces on which a pair of electrodes are installed, is formed on the sensitive member receiving part. The sensing electrodes are installed on the surfaces of the groove to face each other. The gas sensitive member is held in the groove and is connected to the sensing electrodes. The gas sensitive member reacts with gas and changes an electrical property. The gas comprises nitrogen oxide. The sensing electrodes are formed by a thick film printing method.