Iwatsu DS-8814, Operation Manual

Page: 78 / 141

59
Multiplication
(Mult)
Measurement example of multiplied waveform (CH1&CH2)
Multiplying CH1 by CH2 waveform in the figure on the right. Used for
power observation from a voltage waveform and current waveform,
etc.
Multiplications are performed according to the following expression:
Mult = (CH1 waveform data
−
CH1 GND position)
×
(CH2 waveform
data
−
CH2 GND position)/128
CH1
CH2
Mult
Outside screen
Center
Outside screen
Waveform display
screen
This instrument converts the voltage of an
input signal from analog to digital with 8-bit
resolution (
−
128 to +127) and displays the
data corresponding to -100 to +99 on the
screen. The data outside the screen can be
observed by operating OFFSET or VOLT/
DIV after waveform acquisition is stopped.
Numeric expression of waveform data