Figure 9.
(a) The spectrum obtained using the traditional method, where no vibrations caused by faults were detected. (b) The 1.39 kHz vibration frequency obtained using the WPMS when faults occur.
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.