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.
Row 1: A1: No heating. B1: 100 kHz AC heating. C1: DC heating. D1: 100 kHz AC heating. E1: No heating Row 2: Difference images, A2 = |A1-A1|. B2 = |A1-B1|. C2 = |A1-C1|. D2 = |A1-D1|. E2 = |A1-E1|.
