Real-time infrared spectroscopy of moving solids for on-line analyses

摘要

Two related methods, transient infrared emission spectroscopy and transient infrared transmission spectroscopy, can obtain good spectra from opaque, moving solids by using a transient thermal gradient to isolate spectroscopically a thin layer of material. The basic elements of the methods, the ability to depth profile, and an application involving monitoring coating cure are described.