Back ] Up ] Next ]

Smoke and Mirrors: Ultra-Rapid-Scan FT-IR Spectrometry

Conventional FT-IR instruments invariably use a voice coil drive to scan one or both mirrors of a Michelson interferometer, or one of the many variations on Michelson’s design. The scanning produces a profoundly accurate modulation of the incident radiation. The modulation can be decoded by Fourier transformation to recover a spectrum of the incident radiation. The reason that the mirror velocities are sharply limited is a result of the combination of mirror mass and the maximum linear motor force.

 
Home - Polymer Modulator ™ - Rotating Interferometers - Step-scan Technology
Signal Processing Technology - MAT T-shirts - Bibliography - Links - Private Idaho
Copyright 1995-2000 All Rights Reserved / webmaster@appl-tech.com