A mechanically flexible, battery-powered, differential electrode unit for electrophysiological recordings

Author

Martel, S. ; Jones, L. ; Hunter, I.

Author_Institution

BioInstrumentation Lab., MIT, Cambridge, MA, USA

Volume

3

fYear

2001

fDate

2001

Firstpage

3074

Abstract

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.

Keywords

bioelectric potentials; biomedical electrodes; biomedical electronics; electromyography; instrumentation amplifiers; low-power electronics; power supplies to apparatus; printed circuits; secondary cells; EMG electrodes; EOG; Li; differential recording; electronics; electrophysiological recordings; flexible circuit board; gain; high CMRR; instrumentation amplifier; lithium batteries; low-power electrode unit; mechanically flexible battery-powered differential electrode unit; micro-powered electrode configuration; special AC coupling configuration; special shape; surface EMG; Batteries; Bridge circuits; Electrodes; Electromyography; Flexible printed circuits; Gain; Instruments; Laboratories; Lithium; Rails;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE

ISSN

1094-687X

Print_ISBN

0-7803-7211-5

Type

conf

DOI

10.1109/IEMBS.2001.1017450

Filename

1017450