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This analogue dual phase lock-in amplifier uses advanced technology to create a high performance instrument that is both versatile and easy to use. Lock-in amplifiers are used to measure the amplitude and phase of signals buried in noise by using the process of synchronous detection to recover the signals.

Lock-in amplifiers are used to detect and measure very small AC signalsf8e7all the way down to a few nanovolts. Accurate measurements may be made even when the small signal is obscured by noise sources many thousands of times larger.

Lock-in Amplifier Working Principle.A lock-in amplifier performs a multiplication of its input with a reference signal, also sometimes called down-mixing or heterodyne/homodyne detection, and then applies an adjustable low-pass filter to the result.

Lock-in amplifiers are used to detect and measure very small AC signalsf8e7all the way down to a few nanovolts. Accurate measurements may be made even when the small signal is obscured by noise sources many thousands of times larger.

The lock-in technique is an AC modulation technique used to detect small AC signals hidden in a noisy environment. Multiplication of the measurement signal by the reference signal results in a DC component proportional to the amplitude of the measured signal at the modulation frequency.

Lock-in Amplifier Working Principle.A lock-in amplifier performs a multiplication of its input with a reference signal, also sometimes called down-mixing or heterodyne/homodyne detection, and then applies an adjustable low-pass filter to the result.

The lock-in technique is an AC modulation technique used to detect small AC signals hidden in a noisy environment. Multiplication of the measurement signal by the reference signal results in a DC component proportional to the amplitude of the measured signal at the modulation frequency.