How do I adjust the sensitivity of the Lock-In Amplifier?
Written by Paul Cracknell
Updated at February 8th, 2021
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Moku:Go
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Unlike some lock-in amplifiers, Moku:Lab's Lock-in Amplifier does not have a sensitivity setting.
Instead, you can adjust the output gain to achieve a similar effect. Sensitivity determines how the lock-in amplifier maps the input level to the output level. For example, a 1 mVpp sinusoidal signal is mapped to a 0.25 mV DC signal at the output, assuming a 0 phase difference. If we apply a 40 dB gain at the output, the signal is now mapped to a 25 mV DC. The maximum output gain without saturating is recommended.