Usage Example - Iwatsu SS-623S Instruction Manual

1.3 Usage Example

To measure current using this current probe, place a conductor to be
measured through the coil loop, and detect a change in magnetic flux
caused by the current flowing through the conductor with the Rogowski Coil
as an electromotive force, as shown in the following usage example
(conceptual illustration). The electromotive force (differential value of the
current) passes through the input of the main unit, and it is integrated by the
integrator of the main unit.
The integrated current value is converted to voltage with a sensitivity (mV/A)
set for each main unit. The converted voltage is output from the output
terminal of the main unit. Inputting the output voltage to an oscilloscope and
other monitoring devices allows observation of the current waveform.
The sensor cable cannot be removed, because it is integral with (connected
inside of) the main unit. Connect the main unit and monitoring devices with the
BNC cable.
Current I
*: The direction of the arrow in the following figure indicates positive
Conductor to
be measured
Sensor cable
Figure 1.1 Usage Example of Rogowski Coil Current Probe
Rogowski Coil Current Probe
(Clip like: Closed loop)
Input
Main unit
Chapter 1 Overview
Current waveform is observed
with an oscilloscope (not
included) and other monitoring
d i
BNC cable
Output
(Conceptual Illustration)
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