HHS 3D 5213-50 - DC - 20 kHz, Square Helmholtz Coils

Three-dimensional Helmholtz Coils

Precisely defined magnetic fields. DC - 20 kHz.

The Schwarzbeck HHS 3D 5213-50 combines three orthogonal coil pairs to generate magnetic vector fields. Each coil has 50 turns, with a usable frequency range from DC to 20 kHz

PARTNER:

SCHWARZBECK MESS-ELEKTRONIK

MARKETS:

RF ,

CATEGORIES:

TEST STANDARDS:

MIL-STD-461 ,

Data Sheet

SPECIFICATIONS

DC - 20 kHzUsable frequency range

5 AContinuous nominal coil current

50 turnsPer coil

Defined by geometry

A calculable field.
A traceable measurement.

Magnetic field strength is proportional to coil current. Coil geometry, the number of turns and the applied current determine the resulting field, allowing the field measurement to be traced to a current measurement or the voltage drop across a known resistor.

The inner Y-axis pair, center X-axis pair and outer Z-axis pair have different coil factors. Their specifications are identified separately below so each axis can be driven for the required field component.

Plan your test setup

Match the field to your application.

Continuous operation

The nominal coil current is 5 A continuous. The specified nominal magnetic field is 240 A/m continuous. Field values apply at the stated reference spacing.

Short-duration operation

The maximum coil current is 8 A (5 min.). Observe the stated time limit and provide adequate ventilation. The frequency range alone does not imply that maximum current or field is available at every frequency.

Technical details

Specifications

Product specifications with reference conditions. See the linked manufacturer datasheet for complete field distributions and operating guidance.

View the complete datasheet →

Number of turns (per Coil)	50
Maximum Coil Current	8 A (5 min.)
Nominal Coil Current	5 A continuous
Maximum Magnetic Field Strength	390 A/m
Nominal Magnetic Field Strength	240 A/m continuous
Dimensions	1.4 m x 1.4 m x 1.3 m
Frequency Range	DC - 20 kHz
Resonant Frequency (per Coil)	> 30 kHz
Weight	ca. 85 kg
Inner Y-axis — Effective Coil Dimensions	1.1 m x 1.1 m
Inner Y-axis — Coil Separation acc. EN 55103	62 cm
Inner Y-axis — Magnetic Field Strength, 1 A	57.7 A/m
Inner Y-axis — Resistance (Coil pair)	3.0 Ω
Inner Y-axis — Inductance (Coil pair)	19.08 mH (Coil Dist. 0.62 m)
Center X-axis — Effective Coil Dimensions	1.21 m x 1.21 m
Center X-axis — Coil Separation acc. EN 55103	68 cm
Center X-axis — Magnetic Field Strength, 1 A	52.5 A/m
Center X-axis — Resistance (Coil pair)	3.3 Ω
Center X-axis — Inductance (Coil pair)	21.3 mH (Coil Dist. 0.68 m)
Outer Z-axis — Effective Coil Dimensions	1.32 m x 1.32 m
Outer Z-axis — Coil Separation acc. EN 55103	74 cm
Outer Z-axis — Magnetic Field Strength, 1 A	48.2 A/m
Outer Z-axis — Resistance (Coil pair)	3.6 Ω
Outer Z-axis — Inductance (Coil pair)	23.58 mH (Coil Dist. 0.74 m)

Where specified, coil distances refer to the coil centers. Continuous and short-duration limits are listed separately. Standards references retain the designations used in the source documents.

Installation and operating safety

Read the supplied datasheet before use. Switch off the complete system before making or removing connections and do not touch terminals during operation. Observe all voltage, current and time limits. High currents heat the coils; maintain adequate air circulation. Keep unintended magnetic field sources and magnetic materials away from the test volume.

North American sales