The HHS 5205-1 Helmholtz coils are especially designed to generate precisely defined magnetic fields from DC up to 30 MHz and beyond. The HHS 5205-1 is ideally suited for the calibration of magnetic field probes or sensors. Typical applications are magnetic immunity testing according to medical standard AIM 7351731, ISO 14443, ISO 15693-3, automotive standards or MIL 461F.
| Number of turns (per coil): | 1 |
| Maximum coil current: | 20 A, 1 min. |
| Nominal coil current: | 15 A continuous |
| Coil spacing: | 250 mm |
| Maximum magnetic field strength: | 28.6 A/m, 1 min. |
| Nominal magnetic field strength: | 14.3 A/m continuous |
| Magnetic field strength @ 1 A coil current: | 1.43 A/m; 123.11 dBµA/m |
| Total current required for 1 A/m: | 700 mA |
| Conversion current-to-field-strength (coil factor): | 3.11 dB/m |
| Coil diameter: | 500 mm |
| Mechanical dimensions: | 0.52m x 0.72m x 0.42m |
| Max. volume of DuT: | 25x25x25 cm |
| Terminal: | N-female |
| Usable frequency range: | DC – 30 MHz |
| Inductance (per coil): | 1.15 µH |
| Inductance (pair of coils): | 0.67 µH |
| Resonance frequency | > 44 MHz |
| Weight: | 5.5 kg |