Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2021 Sep 8;7(37):eabh1055. doi: 10.1126/sciadv.abh1055

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY).

This is an open-access article distributed under the terms of the Creative Commons Attribution license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

PMC Copyright notice

Fig. 3. — (A) The wiring diagram of the cofacial pair inverter when used as a voltage preamplifier. 3M adhesive medical electrodes are placed below the clavicle on both the right and left side, with one being connected to a DC offset and the other connected directly to the input of the inverter on a benchtop. (B) The ECG signal recorded from the output of the cofacial pair inverter. (C) The ECG signal recorded directly between the adhesive medical electrodes using a benchtop DMM.