Which of the following is not the function of the drive mechanism in Fourier Transform Infrared Spectrophotometer?
(a) Movement of mirror to obtain a satisfactory interferogram
(b) Acquire a good interferogram pattern
(c) Allow 50% of the beam to pass
(d) Keep the speed of the moving mirror constant
This question was addressed to me in a job interview.
The above asked question is from Fourier Transform Infra-red Spectrometers topic in chapter Colorimetry and Spectrometry of Analytical Instrumentation