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arXiv · 1308.5512

Generalized lock-in amplifier for precision measurement of high frequency signals

Siyuan Fu·Atsunori Sakurai·Liang Liu·Fredrik Edman·Tõnu Pullerits·Viktor Öwall·Khadga Karki
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Abstract

We herein formulate the concept of a generalized lock-in amplifier for the precision measurement of high frequency signals based on digital cavities. Accurate measurement of signals higher than 200 MHz using the generalized lock-in is demonstrated. The technique is compared with a traditional lock-in and its advantages and limitations are discussed. We also briefly point out how the generalized lock-in can be used for precision measurement of giga-hertz signals by using parallel processing of the digitized signals.

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Siyuan Fu, Atsunori Sakurai, Liang Liu, Fredrik Edman, Tõnu Pullerits, Viktor Öwall, Khadga Karki. 2013-08-26. Generalized lock-in amplifier for precision measurement of high frequency signals. https://doi.org/10.1063/1.4827085

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