Figure 3.
Electromagnetic monitoring apparatus (EMMA) diagram: (a) front view, (b) linear arrangement of 24 Hall effect sensors, (c) electromagnet (top surface), and (d) schematic diagram of monitoring probe.
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.