Helmholtz Coils

Helmholtz-Coils are especially designed to generate precisely defined magnetic fields from DC to the upper end of the audio frequency range and beyond. The generated fields are in a strongly linear relation to the coil current. The field- strength can be calculated exactly by analytical (or numerical) methods, based on the coils’ geometry, the number of turns and the coil current.

Therefore Helmholtz-Coils are ideally suited for the calibration of magnetic field probes or sensors. Typical applications are magnetic immunity testing according to automotive standards or MIL-461G.

When generating magnetic fields with Helmholtz coils the coil current is directly proportional to the magnetic field strength.

To Exit fullscreen press Esc
Helmholtz Coils Overview Table

CoilTurnsFrequency RangeTypeDiameter / Side, mCoil Current, AMagnetic Field Strength, A/mMagnetic Field Strength at 1A Coil CurrentResonance Frequency, kHz
NominalMax.NominalMax.A/mdBµA/m
HHS 5203-536536DC - 2 kHzCircular0.25651514000420002780188.913
HHS 5206-2525DC - 300 kHzCircular0.628461600270059.64155.51400
HHS 5206-44DC - 1.5 MHzCircular0.58434553305309.64139.683000
HHS 3D 5213-5050DC - 20 kHzSquare1.325824039057.7155.2230
HHS 5206-88DC - 800 kHzCircular0.63455650106019.23145.681500
HHS 5206-132132DC - 30 kHzCircular0.6101531424713314.2169.9750
HHS 5202-8181DC - 300 kHzCircular0.2324620003000500174400
HHS 5202-99DC - 2.5 MHzCircular0.23233551832305355.52154.893500
HHS 5230-100100DC - 5 kHzSquare381632565050.8154.1213
HHS 521810DC - 100 kHzSquare1.81020631266.26135.93400
HHS 5218-100100DC - 3 kHzSquare1.8331020706.3172870.63176.988
HHS 5215-100100DC - 6 kHzSquare1.531020842200084.2158.5120
HHS 5215-1010DC - 100 kHzSquare1.510201002009.96140400
HHS 5213-100100DC - 5 kHzSquare1.295915900.91500100.09616013
HHS 5213-5050DC - 20 kHzSquare1.275824039048.5153.7130
HHS 5212-1010DC - 150 kHzSquare1.2102012525012.45141.9500
HHS 5210-100 2.5100DC - 10 kHzSquare1.04122017462900145.54163.2625
HHS 5210-100100DC - 10 kHzSquare1.0491513102183145.54163.2625
HHS 5210-1010DC - 150 kHzSquare1102015030015143.52600
HHS 5201-66DC - 5 MHzCircular0.121240860286071.55157.098000
HHS 5201-9898DC - 200 kHzCircular0.084124020000640001598184.07600
HHS 5206-1616DC - 500 kHzCircular0.633551260210038.17151.63700
HHS 5204-1212DC - 500 kHzCircular0.430601288250042.93152.661400
HHS 5204-3636DC - 150 kHzCircular0.4102012882500128.8162.2200

Use the buttons below to filter Helmholtz Coils products by their variations.
All Circular Square

HHS 5203-536 – Circular Helmholtz Coils

  • Number of turns: 536
  • Frequency Range: DC - 2 kHz
  • Coil Shape: Circular
  • Nominal Coil Current (continuous): 5 A
  • Maximum Coil Current (5 min.): 15 A
  • Magnetic Field Strength Nominal (continuos): 14000 A/m
  • Magnetic Field Strength Maximum (5 min.): 42000 A/m
  • Magnetic field strength at 1 A Coil Current: 2780 A/m; 188.9 dBµA/m
  • Diameter/Side: 0.256 m
  • Resonance Frequency (pair of coils): 13 kHz
HHS 5206 – Circular Helmholtz Coils

HHS 5206-25 – Circular Helmholtz Coils

  • Number of turns: 25
  • Frequency Range: DC - 300 kHz
  • Coil Shape: Circular
  • Nominal Coil Current (continuous): 28 A
  • Maximum Coil Current (5 min.): 46 A
  • Magnetic Field Strength Nominal (continuos): 1600 A/m
  • Magnetic Field Strength Maximum (5 min.): 2700 A/m
  • Magnetic field strength at 1 A Coil Current: 59.64 A/m; 155.51 dBµA/m
  • Diameter/Side: 0.6 m
  • Resonance Frequency (pair of coils): 400 kHz
HHS 5206 – Circular Helmholtz Coils

HHS 5206-4 – Circular Helmholtz Coils

  • Number of turns: 4
  • Frequency Range: DC - 1.5 MHz
  • Coil Shape: Circular
  • Nominal Coil Current (continuous): 34 A
  • Maximum Coil Current (5 min.): 55 A
  • Magnetic Field Strength Nominal (continuos): 330 A/m
  • Magnetic Field Strength Maximum (5 min.): 530 A/m
  • Magnetic field strength at 1 A Coil Current: 9.64 A/m; 139.68 dBµA/m
  • Diameter/Side: 0.584 m
  • Resonance Frequency (pair of coils): 3000 kHz
HHS 3D 5213-50 - 3D Helmholtz Coil

HHS 3D 5213-50 – 3D Helmholtz-Coil

  • Number of turns: 50
  • Frequency Range: DC - 20 kHz
  • Coil Shape: Square
  • Nominal Coil Current (continuous): 5 A
  • Maximum Coil Current (5 min.): 8 A
  • Magnetic Field Strength Nominal (continuos): 240 A/m
  • Magnetic Field Strength Maximum (5 min.): 390 A/m
  • Magnetic field strength at 1 A Coil Current: 57.7 A/m; 155.22 dBµA/m
  • Diameter/Side: 1.32 m
  • Resonance Frequency (pair of coils): 30 kHz
HHS 5206 – Circular Helmholtz Coils

HHS 5206-8 – Circular Helmholtz Coil

  • Number of turns: 8
  • Frequency Range: DC - 800 kHz
  • Coil Shape: Circular
  • Nominal Coil Current (continuous): 34 A
  • Maximum Coil Current (5 min.): 55 A
  • Magnetic Field Strength Nominal (continuos): 650 A/m
  • Magnetic Field Strength Maximum (5 min.): 1060 A/m
  • Magnetic field strength at 1 A Coil Current: 19.23 A/m; 145.68 dBµA/m
  • Diameter/Side: 0.6 m
  • Resonance Frequency (pair of coils): 1500 kHz
HHS 5206 – Circular Helmholtz Coils

HHS 5206-132 – Circular Helmholtz Coil

  • Number of turns: 132
  • Frequency Range: DC - 30 kHz
  • Coil Shape: Circular
  • Nominal Coil Current (continuous): 10 A
  • Maximum Coil Current (5 min.): 15 A
  • Magnetic Field Strength Nominal (continuos): 3142 A/m
  • Magnetic Field Strength Maximum (5 min.): 4713 A/m
  • Magnetic field strength at 1 A Coil Current: 314.2 A/m; 169.97 dBµA/m
  • Diameter/Side: 0.6 m
  • Resonance Frequency (pair of coils): 50 kHz
HHS 5202-81 – Circular Helmholtz Coils

HHS 5202-81 – Circular Helmholtz Coils

  • Number of turns: 81
  • Frequency Range: DC - 300 kHz
  • Coil Shape: Circular
  • Nominal Coil Current (continuous): 4 A
  • Maximum Coil Current (5 min.): 6 A
  • Magnetic Field Strength Nominal (continuos): 2000 A/m
  • Magnetic Field Strength Maximum (5 min.): 3000 A/m
  • Magnetic field strength at 1 A Coil Current: 500 A/m; 174 dBµA/m
  • Diameter/Side: 0.232 m
  • Resonance Frequency (pair of coils): 400 kHz
HHS 5202-9 – Circular Helmholtz Coils

HHS 5202-9 – Circular Helmholtz Coils

  • Number of turns: 9
  • Frequency Range: DC - 2.5 MHz
  • Coil Shape: Circular
  • Nominal Coil Current (continuous): 33 A
  • Maximum Coil Current (5 min.): 55 A
  • Magnetic Field Strength Nominal (continuos): 1832 A/m
  • Magnetic Field Strength Maximum (5 min.): 3053 A/m
  • Magnetic field strength at 1 A Coil Current: 55.52 A/m; 154.89 dBµA/m
  • Diameter/Side: 0.232 m
  • Resonance Frequency (pair of coils): 3500 kHz
HHS 5230-100 - 3m Helmholtz Coil

HHS 5230-100 – Helmholtz Coils

  • Number of turns: 100
  • Frequency Range: DC - 5 kHz
  • Coil Shape: Square
  • Nominal Coil Current (continuous): 8 A
  • Maximum Coil Current (5 min.): 16 A
  • Magnetic Field Strength Nominal (continuos): 325 A/m
  • Magnetic Field Strength Maximum (5 min.): 650 A/m
  • Magnetic field strength at 1 A Coil Current: 50.8 A/m; 154.12 dBµA/m
  • Diameter/Side: 3 m
  • Resonance Frequency (pair of coils): 13 kHz

HHS 5218 – Helmholtz Coils

  • Number of turns: 10
  • Frequency Range: DC - 100 kHz
  • Coil Shape: Square
  • Nominal Coil Current (continuous): 10 A
  • Maximum Coil Current (5 min.): 20 A
  • Magnetic Field Strength Nominal (continuos): 63 A/m
  • Magnetic Field Strength Maximum (5 min.): 126 A/m
  • Magnetic field strength at 1 A Coil Current: 6.26 A/m; 135.93 dBµA/m
  • Diameter/Side: 1.8 m
  • Resonance Frequency (pair of coils): 400 kHz

HHS 5218-100 – Helmholtz Coils

  • Number of turns: 100
  • Frequency Range: DC - 3 kHz
  • Coil Shape: Square
  • Nominal Coil Current (continuous): 10 A
  • Maximum Coil Current (5 min.): 20 A
  • Magnetic Field Strength Nominal (continuos): 706.3 A/m
  • Magnetic Field Strength Maximum (5 min.): 1728 A/m
  • Magnetic field strength at 1 A Coil Current: 70.63 A/m; 176.98 dBµA/m
  • Diameter/Side: 1.833 m
  • Resonance Frequency (pair of coils): 8 kHz
HHS-5215

HHS 5215-100 – Helmholtz Coils

  • Number of turns: 100
  • Frequency Range: DC - 6 kHz
  • Coil Shape: Square
  • Nominal Coil Current (continuous): 10 A
  • Maximum Coil Current (5 min.): 20 A
  • Magnetic Field Strength Nominal (continuos): 842 A/m
  • Magnetic Field Strength Maximum (5 min.): 2000 A/m
  • Magnetic field strength at 1 A Coil Current: 84.2 A/m; 158.51 dBµA/m
  • Diameter/Side: 1.53 m
  • Resonance Frequency (pair of coils): 20 kHz
HHS-5215

HHS 5215-10 – Helmholtz Coils

  • Number of turns: 10
  • Frequency Range: DC - 100 kHz
  • Coil Shape: Square
  • Nominal Coil Current (continuous): 10 A
  • Maximum Coil Current (5 min.): 20 A
  • Magnetic Field Strength Nominal (continuos): 100 A/m
  • Magnetic Field Strength Maximum (5 min.): 200 A/m
  • Magnetic field strength at 1 A Coil Current: 9.96 A/m; 140 dBµA/m
  • Diameter/Side: 1.5 m
  • Resonance Frequency (pair of coils): 400 kHz

HHS 5213-100 – Helmholtz Coils

  • Number of turns: 100
  • Frequency Range: DC - 5 kHz
  • Coil Shape: Square
  • Nominal Coil Current (continuous): 9 A
  • Maximum Coil Current (5 min.): 15 A
  • Magnetic Field Strength Nominal (continuos): 900.9 A/m
  • Magnetic Field Strength Maximum (5 min.): 1500 A/m
  • Magnetic field strength at 1 A Coil Current: 100.096 A/m; 160 dBµA/m
  • Diameter/Side: 1.295 m
  • Resonance Frequency (pair of coils): 13 kHz

HHS 5213-50 – Helmholtz Coils

  • Number of turns: 50
  • Frequency Range: DC - 20 kHz
  • Coil Shape: Square
  • Nominal Coil Current (continuous): 5 A
  • Maximum Coil Current (5 min.): 8 A
  • Magnetic Field Strength Nominal (continuos): 240 A/m
  • Magnetic Field Strength Maximum (5 min.): 390 A/m
  • Magnetic field strength at 1 A Coil Current: 48.5 A/m; 153.71 dBµA/m
  • Diameter/Side: 1.27 m
  • Resonance Frequency (pair of coils): 30 kHz
HHS-5210

HHS 5212-10 – Helmholtz Coils

  • Number of turns: 10
  • Frequency Range: DC - 150 kHz
  • Coil Shape: Square
  • Nominal Coil Current (continuous): 10 A
  • Maximum Coil Current (5 min.): 20 A
  • Magnetic Field Strength Nominal (continuos): 125 A/m
  • Magnetic Field Strength Maximum (5 min.): 250 A/m
  • Magnetic field strength at 1 A Coil Current: 12.45 A/m; 141.9 dBµA/m
  • Diameter/Side: 1.2 m
  • Resonance Frequency (pair of coils): 500 kHz
Schwarzbeck HHS 5210 Helmholtz Coil

HHS 5210-100 2.5 – Helmholtz Coils

  • Number of turns: 100
  • Frequency Range: DC - 10 kHz
  • Coil Shape: Square
  • Nominal Coil Current (continuous): 12 A
  • Maximum Coil Current (5 min.): 20 A
  • Magnetic Field Strength Nominal (continuos): 1746 A/m
  • Magnetic Field Strength Maximum (5 min.): 2900 A/m
  • Magnetic field strength at 1 A Coil Current: 145.54 A/m; 163.26 dBµA/m
  • Diameter/Side: 1.04 m
  • Resonance Frequency (pair of coils): 25 kHz
Schwarzbeck HHS 5210 Helmholtz Coil

HHS 5210-100 – Helmholtz Coils

  • Number of turns: 100
  • Frequency Range: DC - 10 kHz
  • Coil Shape: Square
  • Nominal Coil Current (continuous): 9 A
  • Maximum Coil Current (5 min.): 15 A
  • Magnetic Field Strength Nominal (continuos): 1310 A/m
  • Magnetic Field Strength Maximum (5 min.): 2183 A/m
  • Magnetic field strength at 1 A Coil Current: 145.54 A/m; 163.26 dBµA/m
  • Diameter/Side: 1.04 m
  • Resonance Frequency (pair of coils): 25 kHz
Schwarzbeck HHS 5210 Helmholtz Coil

HHS 5210-10 – Helmholtz Coils

  • Number of turns: 10
  • Frequency Range: DC - 150 kHz
  • Coil Shape: Square
  • Nominal Coil Current (continuous): 10 A
  • Maximum Coil Current (5 min.): 20 A
  • Magnetic Field Strength Nominal (continuos): 150 A/m
  • Magnetic Field Strength Maximum (5 min.): 300 A/m
  • Magnetic field strength at 1 A Coil Current: 15 A/m; 143.52 dBµA/m
  • Diameter/Side: 1 m
  • Resonance Frequency (pair of coils): 600 kHz

HHS 5201-6 – Circular Helmholtz Coils

  • Number of turns: 6
  • Frequency Range: DC - 5 MHz
  • Coil Shape: Circular
  • Nominal Coil Current (continuous): 12 A
  • Maximum Coil Current (5 min.): 40 A
  • Magnetic Field Strength Nominal (continuos): 860 A/m
  • Magnetic Field Strength Maximum (5 min.): 2860 A/m
  • Magnetic field strength at 1 A Coil Current: 71.55 A/m; 157.09 dBµA/m
  • Diameter/Side: 0.12 m
  • Resonance Frequency (pair of coils): 8000 kHz
HHS 5201-98 - Circular Helmholtz Coils

HHS 5201-98 – Circular Helmholtz Coils

Usable Frequency Range: DC – 200 kHz
  • Number of turns: 98
  • Frequency Range: DC - 200 kHz
  • Coil Shape: Circular
  • Nominal Coil Current (continuous): 12 A
  • Maximum Coil Current (5 min.): 40 A
  • Magnetic Field Strength Nominal (continuos): 20000 A/m
  • Magnetic Field Strength Maximum (5 min.): 64000 A/m
  • Magnetic field strength at 1 A Coil Current: 1598 A/m; 184.07 dBµA/m
  • Diameter/Side: 0.084 m
  • Resonance Frequency (pair of coils): 600 kHz
HHS 5206 – Circular Helmholtz Coils

HHS 5206-16 – Circular Helmholtz Coils

  • Number of turns: 16
  • Frequency Range: DC - 500 kHz
  • Coil Shape: Circular
  • Nominal Coil Current (continuous): 33 A
  • Maximum Coil Current (5 min.): 55 A
  • Magnetic Field Strength Nominal (continuos): 1260 A/m
  • Magnetic Field Strength Maximum (5 min.): 2100 A/m
  • Magnetic field strength at 1 A Coil Current: 38.17 A/m; 151.63 dBµA/m
  • Diameter/Side: 0.6 m
  • Resonance Frequency (pair of coils): 700 kHz
HHS 5204-36

HHS 5204-12 – Circular Helmholtz Coils

  • Number of turns: 12
  • Frequency Range: DC - 500 kHz
  • Coil Shape: Circular
  • Nominal Coil Current (continuous): 30 A
  • Maximum Coil Current (5 min.): 60 A
  • Magnetic Field Strength Nominal (continuos): 1288 A/m
  • Magnetic Field Strength Maximum (5 min.): 2500 A/m
  • Magnetic field strength at 1 A Coil Current: 42.93 A/m; 152.66 dBµA/m
  • Diameter/Side: 0.4 m
  • Resonance Frequency (pair of coils): 1400 kHz
HHS 5204-36

HHS 5204-36 – Circular Helmholtz Coils

  • Number of turns: 36
  • Frequency Range: DC - 150 kHz
  • Coil Shape: Circular
  • Nominal Coil Current (continuous): 10 A
  • Maximum Coil Current (5 min.): 20 A
  • Magnetic Field Strength Nominal (continuos): 1288 A/m
  • Magnetic Field Strength Maximum (5 min.): 2500 A/m
  • Magnetic field strength at 1 A Coil Current: 128.8 A/m; 162.2 dBµA/m
  • Diameter/Side: 0.4 m
  • Resonance Frequency (pair of coils): 200 kHz