Transcript
H-Field Probe Type 10
REG.NO 572 - 02
Wandel & Goltermann Germany
H-Field Probe Type 10 27 MHz to 1 GHz
For isotropic measurement of electromagnetic fields
. . . . .
Frequency range 27 MHz to 1 GHz Digital Axis Processing For telecommunications and broadcasting applications Dynamic range 455 dB Compatible with any EMR-200/-300
Calibration includes:
Wandel & Goltermann GmbH & Co. Elektronische Meûtechnik
Postfach 12 62 72795 Eningen, Germany
.
Individually measured frequency response
Applications and features The probe is designed for measuring magnetic fields in the frequency range from 27 MHz to 1 GHz, such as may be encountered in telecommunications, and radio or TV broadcasting applications. The wide frequency range for a magnetic field probe means that it covers the main fields in industry and telecommunications, including mobile radio operating at 900 MHz. Calibration It is recommended that the probe be re-calibrated every two years. All calibration data is traceable to national or international standards. The Type 10C probe is supplied with a calibration report for 27 frequencies covering the entire frequency range of the probe.
Type 10 Type 10C
Typical frequency response (production series average)
.
Absolute field strength
.
.
Calibration certificate
.
.
Calibration report (with individual data)
.
Ruggedness The probe is mechanically and electrically designed for field use. It can be carried by the probe head without damaging the sensors. The electrical destruction limit is above 20 A/m for CW signals, well into the range considered to be a health hazard. Function The probes use three separate sensors. The sensor elements for the magnetic field comprise three coils with detector diodes. The three channels are led out separately and processed digitally in the EMR-200/-300. The diode characteristics are compensated out for each channel individually. The three spatial components are then combined as prescribed by the standard to give the equivalent field strength. This ensures that the true RMS value can be represented over a wide measurement range.
Tel. +49 (0) 7121-86 16 16 Fax +49 (0) 7121-86 14 80
e-mail:
[email protected] http://www.safety-test-solutions.de
+2 dB
+1
0 dB Temperature error [dB]
±2 dB ±4 dB ±6 dB ± 8 dB ± 10 dB ±12 dB ± 14 dB 10 MHz
100 MHz
1 GHz
0
±1
±2
0
10
20
30
Frequency
H-Field Probe Type 10: Typical frequency response at 0.23 A/m
40
50
Temperature [ëC]
H-Field Probe Type 10: Thermal response
Specifications* for the H-Field Probe
Type 10
Sensor type . . . . . . . . . . . . . . . . . . . . . . . . . . magnetic field (H) Directional characteristic . . . . . . . . . . . . . . . . . . . . . . isotropic Frequency range . . . . . . . . . . . . . . . . . . . . . . 27 MHz to 1 GHz typically 10 MHz to 1 GHz Specified measurement range CW signals (f 410 MHz) . . . . . . . . . . . . . . . . . 0.025 to 16 A/m True RMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025 to 1 A/m Dynamic range . . . . . . . . . . . . . . . . . . . . . . . . . . typically 55 dB Absolute error at 0.125 A/m and 100 MHz . . . . . . . . +1.0 dB Linearity at 100 MHz referred to 0.125 A/m in the measurement range 0.025 to 0.05 A/m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +3 dB 0.05 to 0.1 A/m. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1 dB 0.1 to 3 A/m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +0.5 dB 3 to 16 A/m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +1 dB * These specifications apply under the following conditions unless otherwise stated: The unit is located in the far-field region of a sine-wave source; the probe leads are parallel to the magnetic field component; ambient temperature +23 ëC +3 K; relative humidity 25% to 75%. 1) EMR-200/-300 in combination with probe type 10 (BN 2244/90.26) 2) EMR-200/-300 in combination with probe type 10C (BN 2244/90.27) 3) Probe lead perpendicular to direction of propagation
Frequency response Probe Type 10, taking the typical CAL factor into account 1) . . . . +1.0 dB (27 MHz to 300 MHz) +2.0 dB (300 MHz to 1 GHz) Probe Type 10C with extended calibration 2) taking CAL factor into account and including calibration accuracy. . . . . . . . . +0.5 dB (10 MHz to 300 MHz) +0.65 dB (300 MHz to 750 MHz) +1.2 dB (750 MHz to 1000 MHz) Isotropic deviation Field probe only . . . . . . . . . . . typically +0.6 dB (f5800 MHz) Probe and measuring set . . . . . . . . . . . . . . . typically +1 dB3) Overload limit CW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 A/m (15 W/cm2) Pulse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 A/m E-field suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . 420 dB Thermal response (0 to +50 ëC) . . . . . . . . . . . . . . . . . +0.8 dB Calibration Probe Type 10 includes calibration certificate for absolute accuracy and typical frequency response CAL factors Probe Type 10C with extended frequency response calibration Recommended confirmation interval . . . . . . . . . . . . 24 months
Ordering information H-Field Probe Type 10
BN 2244/90.26
H-Field Probe Type 10C
with extended calibration
NATO Stock No.
BN 2244/90.27 NSN 6625-66-142-8743
Subject to change without notice ± EM/EN/D021/0999/AE/repl 938 ± Printed in Germany
Safety Test Solutions from Wandel & Goltermann
