Multichannel Digital Lock-in Amplifier May 27, 2009

Digital lock-in amplifiers are an important tool for measuring the amplitude and phase of signals buried in noise. Most available lock-in amplifiers are limited to measuring a single signal at a time. Scitec Instruments Model 450DV2 is different. It can extract and measure up to 16 different signals in parallel from either of two analogue inputs. This enables multiple harmonic or subharmonics to be monitored and measured simultaneously, without the need to repeat experiments. Also unique to the 450DV2 is the option to perform sum and difference measurements of two reference frequencies and to perform offset frequency measurements.

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