An experiment using a standard Michelson interferometer and a microcomputer to produce and display Fourier transform spectrograms in the advanced undergraduate laboratory is described. Fourier transforms of laser and mercury light sources, as well as simulated data from a function generator, are presented and discussed. The computer program used is designed to be highly interactive and to allow the student a wide range of performance options.

Topics
Spectrograms, Signal generators, Computer programming, Interferometry, Education, Laboratories, Microcomputers
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© 1982 American Association of Physics Teachers.
1982
American Association of Physics Teachers
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