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.
(a) Standard deviation and (b) torque measured at different rotation speeds. Black and green data points: values calculated with all frequency readings. Red and blue data points: values calculated with frequency readings that fall within the standard deviation.
