射频电流探头 R＆S EZ-17 f:20Hz～100MHz
Data sheet
Version
03.01
March
2005
Wide frequency range
High sensitivity
High load capacity for DC and AC
currents
(300 A)
Small dimensions in spite of large
inner
diameter (30 mm)
Simple clamping thanks to springloaded
mechanism
Calibrated to CISPR 16-1-2
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Current Probe ¸EZ-17
Electromagnetic emission and susceptibility measurements in the range 20 Hz to 100 (200) MHz
Current Probe ¸EZ-17
Model 02 for emission measurements
in the range 20 Hz to 100 (200) MHz
Model 03 for emission and susceptibility
measurements in the range
20 Hz to 100 (200) MHz
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Transducer factor k of
the three models of the
Current Probe
¸EZ-17
Fields of application
Current probes are used in particular
where other coupling networks, such as
line-impedance stabilization networks,
are either not available or not suitablefor
practical reasons. Current probesare
however also used to measurethe
electromagnetic
susceptibility of equipment
and systems. With the aid of the currentprobe,
sinewave or pulse-shaped RF current
is injected into lines or cable harnesses.
The shielding effectivenessof
RF
cables can also very easilybe
measured
with the aid of current probes.The
Current
Probes ¸EZ-17 comply with the
following
standards:
CISPR 16-1 and VDE 0876 Part 1/
Part 161 for standards stipulating
maximum values for RFI current
MIL-STD-461 A, B and C CE 01 and 03
as well as MIL-STD-461D/E CE 101
VG 95373 Part 20 and VG 95377
Part 14
DEF STAN 59-41 DCE 01 and 02
GAM EG 13
RTCA/DO 160 C and ED-14-C
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Three models to suit different
applications
The models 02 and 03 of the Current
Probe ¸EZ-17 are suitable for the
following applications in the frequency
range 20 Hz to 100 MHz:
Model 02 with its flat frequency
response
above 1 MHz and output
impedance of 50 W is ideal for emission
measurements as well as for
measuring the shielding effectiveness
Due to its small transducer factor in
the range from 1 MHz to 200 MHz,
model 03 is particularly suitable for
emission measurements with stringent
requirements placed on sensitivity
(e.g. VG 95 373 limit class 1) and,
due to its high load capacity, also recommended
for EMS measurements
(bulk current injection tests)
Owing to their high magnetic overload
capacity, the Current Probes ¸
EZ-17 can be used on three-phase
power lines with currents up to 300 A
withoutany
adverse effect on the result
of the RF current measurement. The
small dimensions – despite the large inner
diameter – and the simple clamping
mechanismallow
the current probes
to be used even where space is at a
premium.
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Description
RF currents carried on supply and control
lines of equipment and systems can be
measured with the aid of current probes
clamped on to the conductors. The current
probe itself forms a transformer, the
current-carrying conductor being its primary
winding. A voltage proportional to
the primary current is measured at the
RF output of the current probe.
Factor k in dB (1/Ω)
Frequency
80
70
60
50
40
30
20
10
0
–10
–20
0 Hz 10 Hz 100 Hz 1 kHz 10 kHz 100 kHz 1 MHz 10 MHz 100 MHz
Mod. 02
Mod. 03
Current Probe ¸EZ-17
Specifications
Model 02 Model 03
Frequency range 20 Hz to 100 (200)1) MHz 20 Hz to 100 (200)1) MHz
Range with constant transducer factor (–3 dB) 1 MHz to 100 MHz 2 MHz to 100 MHz
Transducer factor reduced by 20 dB/decade in range 20 Hz to 1 MHz 20 Hz to 2 MHz
RF connector N female N female
Output impedance 50 W (f ≥ 10 MHz) reactive
VSWR <2 (f > 10 MHz) —
Insertion impedance ≤0.8 W ≤1 W
Transfer impedance ZT
In range with constant transducer factor 3.16 W 7.1 W
Transducer factor k1) in range with flat frequency response –10 dB (1/W) –17 dB (1/W)
Effect by external magnetic fields
Suppression of indication from current-carrying conductors next to probe >40 dB >40 dB
Load capacity (RF current measurement)
Max. DC current or peak AC current 300 A (f < 1 kHz) 300 A (f < 1 kHz)
RMS value of RF current 2 A (f > 1 MHz) 1 A (f > 1 MHz)
Load capacity (EMS measurement)
AC (RMS value) 6 A (f < 1 kHz) 6 A (f < 1 kHz)
Dropping to 0.2 A (up to 1 MHz)
2 W (f > 1 MHz)
0.45 A (up to1 MHz)
10 W (f > 1 MHz)
(50 W for max. 15 min)
General data (all models)
Operating temperature range –10 °C to +55 °C
Storage temperature range –25 °C to 70 °C
Permissible core temperature 80 °C
Mechanical stress shock-tested to MIL-STD-810D (shock spectrum, 40 g), vibration-tested to
MIL-T-28800D, class 5; EN 60068-2-6
Dimensions
L × W × H 95 mm × 84 mm × 26 mm
Inner diameter 30 mm
Weight 0.6 kg
1) The manual contains a table specifying the transducer factor from 20 Hz to 200 MHz.
The transducer factor k is calculated as k = 20 log (1/ZT), where ZT is the transfer impedance.
www.rohde-schwarz.com
Europe: Tel. +49 1805 12 4242, e-mail:customersupport@rohde-schwarz.com· North America: Tel. +1 410-910-7988, e-mail:customer.support@rsa.rohde-schwarz.com
Asia: Tel. +65 68463710, e-mail:customer-service@rssg.rohde-schwarz.com
More information at
www.rohde-schwarz.com
(search term: EZ-17)
Certified Quality System
ISO 9001
DQS REG. NO 1954 QM
Certified Environmental System
ISO 14001
DQS REG. NO 1954 UM
¸is a registered trademark of Rohde & Schwarz GmbH & Co. KG · Trade names are trademarks of the owners · Printed in Germany (ch)
PD 0758.2531.32 · ¸EZ-17 · Version 03.01 · March 2005 · Data without tolerance limits is not binding · Subject to change
Ordering information
Current Probe
Model 02: 20 Hz to 100 MHz ¸EZ-17 0816.2063.02
Model 03: 20 Hz to 100 MHz ¸EZ-17 0816.2063.03
Accessories supplied
Model 02 RF connecting cable with N connectors (1 m), coding connector
Model 03 RF connecting cable with N connectors (1 m)
Both models operating manual with information on relevant transducer factor
