The Michelson interferometer is the foundation for two different sensor technologies known as ftir spectrometers (Fourier Transform Infrared) and FTS (Fourier Transform Spectroscopy). In its original form, the Michelson interferometer was made up of two flat mirrors that were positioned at 90 degrees to each other, and a beam splitter that was mounted on the line that divided the two mirrors at 45 degrees. In most cases, one of the mirrors is held in place, and the other mirror is mounted in ...