Lock-In Voltmeter Capabilities for Very Low-Level Measurements
Synchronous detection techniques are used when the background noise disturbs the amplitude or phase measurements of AC low-level signals. The Lock-in Voltmeter is based on the correlation between the noisy signal and a reference free of noise; it allows to retrieve sinusoidal signals and displays magnitude and phase angle or real and imaginary components. The applications are the same as those of Voltmeters and Phasemeters, but for signals in extremely noisy environments.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $33 for non-members, $5 for AES members and is free for E-Library subscribers.