A Mechanically Flexible, Battery-Powered, Differential Electrode Unit for Electrophysiological Recordings

Abstract

This paper describes a new type of micro-powered electrode configuration. The circuit consists of an instrumentation amplifier and a special AC coupling configuration that maintains a high CMRR with a gain of a 1000. All electronics, including two lithium batteries, are mounted on a flexible circuit board (FPC). The single FPC has a special shape that allows differential recording at various distances between the electrodes. The whole circuit is typically popped onto EMG electrodes so that it can be re-used many times.

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Document Details

Document Type
Technical Report
Publication Date
Oct 25, 2001
Accession Number
ADA410601

Entities

People

  • I. Hunter
  • L. Jones
  • S. Martel

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Circuits
  • Couplings
  • Electrodes
  • Energy Consumption
  • Engineering
  • Flexible Electronics
  • Frequency
  • Gain
  • High Energy
  • High Gain
  • Impedance
  • Instrumentation
  • Lithium Batteries
  • Resistors
  • Standards
  • Temperature Coefficients

Readers

  • Aerospace Test and Evaluation
  • Electrical Engineering
  • Vision Science/Vision Psychology/Cognitive Neuroscience.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems