1. When would a lock-in amplifier be needed instead of a modulation technique? Explain how a...

Question

Question

1. When would a lock-in amplifier be needed instead of a modulation technique? Explain how a lock-in amplifier works.

2. Briefly explain how a photodiode detector work.(By diagram)

science physics

Answer 1

Answer #1

Dear student

Lock-in amplifier is used to extract the signal.

Regards

Answer 2

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