Liquid Instruments Application Engineers, Paul Cracknell and Max Fengyuan Deng, produced this educational video on the demodulation of a high-frequency carrier wave and the relevant signal. It includes experimental setup and a brief discussion of the math involved.
By using Lock-in Amplifier, Arbitrary Waveform Generator, Oscilloscope, and filter bundle, all available in Moku:Lab, Max and Paul provide a solid understanding of this fundamental and important topic.
Moku:Lab Lock-in Amplifier explained; part 1
Part two will be coming soon.