G01N 27/74(20130101), G01N 33/005(20130101)
In one embodiment, a magnetic gas sensor includes a first ferromagnetic layer, a second ferromagnetic layer, and a gas-sensitive metallic interlayer positioned between the first and second ferromagnetic layers, wherein at least one physical property of the metallic interlayer changes in the presence of a gas that is to be detected, wherein a magnetic coupling between the first and second ferromagnetic layers, and a magnetic state of the sensor, can change depending upon the state of the physical property of the metallic interlayer.
Miller, Casey William, "Magnetic gas sensors" (2015). USF Patents. 42.
University of South Florida