Student Work

Active power-line interference attenuation in bioamplifiers

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In this project, we have implemented a feedback circuit that reduces common mode electrical potentials on the human body, in order to improve the performance of bioelectric sensors. The technique, known as "driven right let" (DRL), uses a feedback-based interference cancellation method. The bioelectric sensors used were inexpensive, high impedance, electrode-amplifiers that were electrically isolated from the recorder. An interference attenuation of at least 10 times was observed. This report serves as a reference into DRL and bioamplifier circuits.

  • This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.
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  • 2021-09-14
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  • 02D008M
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Year
  • 2002
Date created
  • 2002-01-01
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