On-line system for measuring properties of a product

摘要

An on-line sensor is provided that supplies light to a spectrophotometer to measure the color a product extruded through a conduit having a bypass section. The on-line sensor includes a transparent member with an opaque outer surface and an interior portion extending from a first end to a second end to the transparent member. The interior portion is connected to the bypass section, and the product that flows through the bypass section is supplied to the interior section of the transparent member. A light source connected to the transparent member and provides light to the transparent member inside the opaque outer surface. A light receiver is connected to the transparent member and captures light from the light source in the transparent member that is affected by the product. The captured light is supplied to the spectrophotometer to at least measure the properties of the product supplied to the interior portion of the transparent member.