Lock-in amplifier techniques for low-frequency modulated sensor applications

@article{Graaf2012LockinAT,
  title={Lock-in amplifier techniques for low-frequency modulated sensor applications},
  author={Ger de Graaf and R. F. Wolffenbuttel},
  journal={2012 IEEE International Instrumentation and Measurement Technology Conference Proceedings},
  year={2012},
  pages={1745-1749}
}
A flexible design for a low-noise lock-in amplifier for low-level signal and low bandwidth sensors, such as infrared detectors, thermal sensors and strain gauges is presented. This paper attempts to bridge the gap between the use of a high performance commercially available lock-in amplifiers or the design of a dedicated high performance lock-in amplifier for a sensor application from scratch. The presented system is dedicated to low-level signal sensor applications, operating at modulation… CONTINUE READING

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