Lock-in amplifier with autotracking bandpass filter

Sato, A.; Ohara, A.; Ogawa, Y.; Suzuki, M.
November 1996
Review of Scientific Instruments;Nov96, Vol. 67 Issue 11, p4021
Academic Journal
Describes a simple, low-cost lock-in amplifier. Autotracking bandpass filter that automatically synchronizes the amplifier's center frequency; Applications of lock-in amplifiers in the measurement of very small acquired current signals.


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