The Schwarzbeck HHS 5206-16 Circular Helmholtz Coils are expertly designed to generate precise magnetic fields from DC up to 500 kHz, with a resonance frequency exceeding 700 kHz. These coils are ideal for calibrating magnetic field probes and sensors, as well as conducting magnetic immunity testing in accordance with automotive standards and MIL-STD 461. Featuring 16 turns and a high temperature-proof Teflon-coated wire, they can produce magnetic fields up to 2100 A/m for short durations and 1260 A/m continuously. The strong linear relationship between coil current and magnetic field strength ensures accurate field strength calculations. With a coil diameter of 600 mm and the capability to accommodate a maximum cubic Device Under Test (DuT) size of 32.5 x 32.5 x 32.5 cm, these coils are versatile for various testing setups. Special care should be taken by individuals with magnetic-field-sensitive implants, such as pacemakers. Simulation results using Finite Element Method Magnetic (FEMM) software provide detailed insights into the magnetic field intensity and flux distribution for these coils.
| Number of turns: | 16 |
| Maximum Coil Current: | 55 A (5 min.) |
| Nominal Coil Current: | 33 A continuous |
| Coil Spacings (centered): | 300 mm |
| Max. Magn. Field Strength: | 2100 A/m (5 min.) |
| Nominal Magn. Field Strength: | 1260 A/m continuous |
| Magn. Field Strength, 1 A Coil Current: | 38.17 A/m; 151.63 dBµA/m |
| Coil Diameter: | 600 mm |
| Max. Cubical shaped DuT: | 32.5 x 32.5 x 32.5 cm |
| Mechanical Dimensions: | 0.64 m x 0.79 m x 0.42 m |
| Terminals: | 4 mm female |
| Inductance (Single Coil): | 340 µH |
| Inductance (Coil Pair): | 750 µH |
| Usable Frequency Range: | DC – 500 kHz |
| Resonance Frequency: | > 700 kHz |
| Weight: | 20.4 kg |
