Schwarzbeck HHS 5201-98 Circular Helmholtz Coils (64 kA/m, DC – 200 kHz)

Number of turns (per Coil): 98

Maximum coil current: 40 A, 1 min. 15 A, 15 min.

Nominal coil current: 12 A continuous

Free coil distance for DuT: ca. 0...66 mm

Coil Spacings between coil centers: ca. 29...95 mm

Recommended Coil Spacing referring to coil centers: 45 mm

(The following data refers to a coil separation of 45 mm)

Maximum magnetic field strength: 64 kA/m / 1 min

Nominal magnetic field strength: 20 kA/m

Magnetic field strength at 1 A Coil Current: 1598 A/m

Current required for 1 A/m: 0.626 mA

Conversion Current-Fieldstrength (Coil factor): 64.07 dB/m

Coil diameter: 84 mm

Mechanical dimensions: 240 × 240 × 130 mm

Terminals: 4 mm banana jacks, Screw terminals

Usable frequency range: DC - 200 kHz

Inductance (per coil): 0.84 mH

Inductance (pair of coils): 2.3 mH / 30 mm; 2.1 mH / 50 mm; 1.8 mH / 70 mm

Resistance: 0.35 Ω / 20°C; 0.45 Ω / 80°C

Resonance frequency (pair of coils): > 600 kHz

Weight: 4.1 kg

 Datasheet