27
M731400M00
Terms In The Specification
RMS :
The physical meaning of
RMS
(
R
oot
←
M
ean
←
S
quare)
:
If the heat energy, temperature, in a resistor produced by
a AC signal during the periodic time T is the same as pro-
duced by a DC signal during the same time T
then we know
“
The DC signal value is the RMS value of the AC signal
”
T1
T2
V
AC
V
DC
When T1 = T2,
The V
DC
value is the V
RMS
value of a V
AC
signal
According the definition of physical meaning we can derive the
mathematic operation procedure to get a RMS value of a
signal as following :
"
R
oot
←
M
ean
←
S
quare the signal"
