Operation Manual

28
Terms In The Specification
Terms In The Specification
RMS :
The physical meaning of RMS (Root ← Mean ← Square) :
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 :
"Root ← Mean ← Square the signal"