Lower protective shield for an exhaust sensor and method for making the same

摘要

The protective shield arrangement for an exhaust sensor and method of making and using the same is achieved by providing a protective shield for an exhaust gas sensor that comprises a porous mesh material formed as a cap for placement over an end portion of a sensing element. This is formed by a method that comprises providing a unitary piece of the mesh material, and folding the mesh material to form the cap. Thereby, gas passes through the tortuous pathway created by the mesh material to be sensed by the sensor.