The generated magnetic field strength is proportional to the coil current. Two different distance rings (50 mm and 100 mm separation) are supplied to ensure a well defined spacing between the coil plane and the EuT-surface. The highest field strength levels can be achieved using the shortest ring. There are further rings available on request in order to provide a certain scaling between coil current and magnetic field strength (e.g. 1 Amp coil current = 100 Amp/m field strength).
Application as magnetic field probe:
The FESP 5133 can also be used to measure existing magnetic fields. The open circuit output voltage is directly proportional to the magnetic field strength (at fixed frequency) or directly proportional to frequency (at constant magnetic field strength).
| Number of turns: | 36 |
| Wire diameter: | 1.26 mm Cu |
| Maximum coil current: | 10 A (5 min.) |
| Nominal coil current: | 5 A continuous |
| Max. magn. field strength: | 1385 A/m (5 min.) |
| Nominal magn. field strength: | 700 A/m continuous |
| Magnetic field strength, 1 A coil current: (with 50 mm distance ring): | 138.5 A/m |
| Current required for 1 A/m:(with 50 mm distance ring) | 7.22 mA |
| Magnetic field strength, 1 A coil current: (with 100 mm distance ring) | 46.88 A/m |
| Current required for 1 A/m:(with 100 mm distance ring) | 21.3 mA |
| Flux density with 50 mA at 50 mm distance: | 138.8 dBpT136.8 dBµA/m |
| Inner coil diameter: | 133 mm |
| Medium coil diameter: | 135.5 mm |
| Spacing coil center to measurement plane: | 50 mm / 100 mm |
| Mechanical dimensions: | 0.16 m x 0.25 (0.3) m |
| Coil terminals: | 4 mm Laborstecker (Standard) oder BNC |
| Shield: | Electrostatic |
| Usable frequency range: | 0 – 200 kHz |
| Inductance: | ≈ 300 μH |
| Resonance frequency: | >500 kHz |
| Resistance: | 0.6 Ω |
| Weight: | 1.1 kg |
| Standard: | MIL 461EN 55103 – 2 A.2.1 b)EN 55103 – 2 A.4.1 |