LAMINATED MEMBRANES FOR DIFFUSION LIMITED GAS SENSORS RESISTANT TO PRESSURE VARIATIONS

摘要

A micro fuel cell sensor having laminated gas permeable membrane. The sens or comprises a housing, first and second gas diffusing electrodes spaced from o ne another, a fuel-cell spacer having an acidic electrolyte disposed between sa id first and second electrodes, and two gas permeable membranes. The first gas permeable membrane comprises a polymer laminated on a metal substrate, wherein the substrate comprises pores that have dimensions at least less than one-half the thickne ss of the polymer film.