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About the Instrument's Voltage Sensors
Appx. 2 About the Instrument's Voltage
Each of the instrument's voltage sensors incorporates an internal
electrode (metal plate). When the voltage sensor is clipped around
the measurement target (wire), the minuscule current I flows due
to capacitive coupling between the measurement target and the
voltage sensor's internal electrode.
I
= 2 π
fCV
I
= 2 π
fCV
: Frequency of measurement target [Hz]
= 2 π
fCV
:
Capacitance between measurement target and voltage sensor's
internal electrode [F]
fCV
:
Voltage (AC) between the measurement target and the voltage
sensor's internal electrode [V]
2
Appx.
Sensors
(1)
Measurement target (wire)
V
I
= 2 π
fCV
V
2
Voltage sensor's
internal electrode
I
= 2 π
fCV
1
Voltage
generation
circuit
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