Tiled periodic metal film sensors

摘要

In accordance with the invention, a tiled periodic metal film sensor can be used to measure refractive index changes of a thin layer of liquid to determine changes in the liquid composition. The tiled periodic metal film sensor senses reflected light as a function of wavelength and infers a change in the refractive index of the fluid. To determine changes in the composition of the liquid requires the ability to compensate for any ambient temperature changes