Patent ID: 9013698
Filing Date: 2015-04-21
Classification: G01N,G06E

Abstract:
1. A method of operating an optical computing device, comprising: optically interacting electromagnetic radiation with a sample and at least one integrated computational element arranged in an optical train of the optical computing device, the sample being configured to generate optically interacted radiation, and the at least one integrated computational element including a plurality of layers of materials; transmitting the electromagnetic radiation through a sampling window arranged adjacent the sample, the sampling window having one or more surfaces that generate one or more stray signals; receiving and focusing the optically interacted radiation with a first focal lens and thereby generating a primary focal point; aligning the primary focal point at a spatial aperture defined in a structural element arranged within the optical train such that the optically interacted radiation passes through the spatial aperture unobstructed; and substantially blocking a transmission of the one or more stray signals with the structural element.