Helmholtz Coils
generate precise magnetic fields within and between it's coils.
See Also: Coil, Coil Turns, Rogowski, Magnetic Field
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Product
Helmholtz Coils / Radiating Loops
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Formed by a pair of conducting circular coils with many turns, each carrying a current. The coils are separated by a distance equal to the radius of the circular loops.
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Product
Circular Helmholtz Coils
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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.
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Product
Helmholtz Coils (Field Standards)
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Lake Shore offers four Helmholtz coils for field standards: 2.5 in, 6 in, and 12 in diameter single axis, and the MX-2X-10 double axis coil. Standard field coil (field generation). Field strengths from ˜12 G to ˜30 G. Field accuracy of 0.5%. Field uniformity of 0.5%*. Single axis configuration with 2.5 in, 6 in, and 12 in diameter coils.
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Product
Helmholtz Coils
HH-HIGH
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The SENIS Model HH-HIGH Helmholtz Coils represent a cutting-edge solution for generating a high uniformity magnetic field across a substantial volume. Specifically designed with a single axis coil pair in a Helmholtz geometry, this model excels in applications where precise magnetic conditions are crucial. With a remarkable operating range of up to 50 mT rms, this air-cooled system demonstrates exceptional performance and reliability for materials measurement, sensor testing, and electronic sensitivity assessments.In addition to its capabilities, the HH-HIGH boasts a myriad of technical advantages. The inner diameter measures an impressive 105.5 mm, ensuring that the coils maintain their efficiency while accommodating various experimental setups. Weighing in at just 19.1 kg, the compact design allows for easy integration into existing test equipment or experimental arrangements. Moreover, significant safety features have been integrated, including a maximum supply voltage rating of 60V, which harmonizes with the maximum permissible touch voltage, thereby assuring user safety during operation.
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Standard Helmholtz Coils
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Helmholtz Coils are ideal for the measurement of Rare Earth (Samarium Cobalt, Neodymium) and Hard Ferrite permanent magnet materials (materials which exhibit a relative straight line demagnetization). Our standard Helmholtz Coils are for use with fluxmeters. The Helmholtz Coil measures the magnet sample as a single magnetic moment provided that the longest dimension of the magnet sample is less than one-third (1/3) the diameter of the coil system. By definition, the magnetic moment per unit volume is the intrinsic magnetization of the sample. With our calibrated Helmholtz Coil and Integrated Fluxmeter – and given the volume of the permanent magnet sample – the intrinsic open circuit operating B (Bdi) can be measured.
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Product
Helmholtz and Search Coils
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Standard field Helmholtz coils, magnet moment measurement Helmholtz coils, and search coils.
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Product
Three Axis Helmholtz Coil Systems
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Macintyre Electronic Design Associa
he MEDA turnkey closed loop magnetic field sources cancel the local ambient field as well as generate accurate and uniform magnetic fields in a control volume. The sources use Helmholtz coils driven by control currents to produce stable magnetic fields from 1 nT to 100,000 nT. The accuracy of the field in the control volume is better than 0.05% of the setting.
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Product
MEMS Magnetic Sensor Test
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Cohu offers a big variety of magnetic test solutions applying magnetic field in all three dimensions. Depending on the requirements we can integrate coils with and without magnetic core, single- or Helmholtz coils, as well as permanent magnets, static and rotating.
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RF Helmholtz Coil
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The Beehive Electronics 135A RF Helmholtz coil generates a well-controlled, uniform magnetic field. It can be used to calibrate magnetic field probes, such as the Beehive 100 series, or for testing the susceptibility of other devices to magnetic fields. The Helmholtz coil comes supplied with a fixture that makes it easy to calibrate Beehive 100 series probes.
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Magnet Testing
Helmholtz Coils
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A coil arrangement consisting of two coils with the same radius or edge length is called a Helmholtz coil. At the correct distance, these coils are arranged in parallel on the same axis and current flows through them in the same direction. Their magnetic field is then characterized by a large homogeneous area in the center of the coil, which is freely accessible for experiments and measurement tasks. Helmholtz coils can have a circular or square geometric shape.
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Product
Accessories
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Hunan Linkjoin Technology Co., Ltd.
Linkjoin accessories - electromagnet, core test fixture, epstein frame, DC permeameter, AC permeameter, reference magnet, magnetic flux fixture, solenoid, helmholtz coil, temperature controller, etc
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Product
Helmholtz Coil
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In the measurement of magnetic fields by means of Hall probes or measuring coils it is necessary to calibrate the instruments in a known magnetic field. Our standard field coil according to Helmholtzenables to production of a magnetic field calculable with high accuracy from the dimensions and the amperage. In series arrangement with an accurate ammeter field strengths of up to 800A/cm are produced. The dield room accessible both in axial and radial direction. Helmholtz coils with fluxmeters are also useful in testing of magnets. Helmholtz coils give repeatable results as against the search coils due to which the magnets can be compared with more accuracy for their total flux and in turn their quality. Field Generating and Field Detecting Helmholtz coils are designed as per user specifications.
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Product
Helmholtz Coils
HHROT-1
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The SENIS Model HHROT-1 Helmholtz Coils is designed to produce a large, uniform magnetic field for various applications, including materials measurement and sensor calibration. This single-axis coil pair, configured in Helmholtz geometry, ensures high field uniformity, critical for experiments requiring stable magnetic environments. With an inner diameter of 176 mm and a remarkable operating range of 1mT to 20mT rms, the HHROT-1 is capable of precise measurements and testing of magnetic sensors in diverse orientations. It weighs 32 kg, allowing easy integration into experimental setups such as laboratories and testing facilities. Additionally, the HHROT-1 features a unique mechanism of three orthogonal gimbals that enables the rotation of a magnetic sensor within the uniform magnetic field. This design allows the sensor to rotate in all three angles—tilt, roll, and pitch—independently, thereby enhancing the versatility of measurement techniques. The coils are air-cooled and can be mounted in various orientations. With non-linearity errors lower than $4\cdot10^{-5}$, it promises unparalleled accuracy for demanding applications.
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Product
3D Helmet Coil
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With the 3D Helmholtz coil system, 3-dimensional magnetic field vectors can be generated. By superimposition, it is possible to create a field-free space or an artificial earth magnetic field vector inside the coil arrangement. The coil arrangement was developed for the calibration of magnetic field sensors.
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Product
Fluxmeters
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Hirst Magnetic Instruments Ltd
Fluxmeters measure the total magnetic flux in a volume contained within a coil (such as a Helmholtz coil) whereas a gaussmeter measures the total flux density at a point where the probe is located.
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Product
Power Supply
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High precision analog control loop power supplies for inductive loads such as electromagnets, superconducting coils, Helmholtz coils and others.Autonomous analog power supplies with digital controls, readouts and supervision. The interfaces are digital and analog
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Product
Helmholtz Coils
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Helmholtz coils is a candidate test apparatus for low frequency magnetic field susceptibility testing on military equipment and subsystems. Use of this coils reduce electromagnetic compatibility (EMC) qualification tests time, and subject the equipment under test (EUT) to a relatively uniform field.
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Product
Fluxmeter
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Measures changes in magnetic flux, as detected through a Helmholtz or similar coil arrangement.
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Product
Precision Helmholtz Coils
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A precision Helmholtz coil set is suitable for use with all types of permanent magnets. Constructed out of aluminum and brass with fully shielded coils, the HCP is a hand-operated, sample rotation mechanism with precise 180-degree rotation built in.
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Product
Helmholtz Coils
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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.
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Product
Moment Measuring Coils (Helmholtz)
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measurement of the magnetic moment of magnetized parts and for generation of homogeneous magnet fields with easy access. Inner diameters from 20 - 1040 mm. X-Y and X-Y-Z coils are also available. Typical serial coils are the following types: MS 20, MS 75, MS 150, MS 210, MS 440.
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Coil Tester
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It is a new impulse winding tester that incorporates high precision, a wide range of functions, various expandability, improved operability, and a full range of external communication interfaces.
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Product
IGNITION COIL TESTER - ORANGE
MD76500M
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*Non-intrusive, quick check tool instantly verifies active or inactive coil operation*Detects the magnetic field created by a coil energizing*Tool can be used to test coil on plug, coil near plug and coil pack systems
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J-compensated Surrounding Coils
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With incorporated field coils. For plotting B-H (J) hysterese curves at room temperature. The following types are available: JH 6-2, JH 10-1, JH 15-1, JH 20-1, JH 26-1, JH 42-1, JH 66-1, JH 42-2 and JH 66-2.
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Coil Analyzers
SAT Series
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The Coil Analyzers SAT30A and SAT40A are powerful, lightweight units ideal for testing of circuit breakers. Substation battery is not connected or available. The SAT series instruments are intended to supply circuit breaker coils and spring charging motors. They spring charging motors (SAT40A – AC and DC) as a part of commissioning and maintenance testing.
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Search Coils And Field Measuring Coils
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Designed to measure the magnetic flux on magnets or in the airgap of magnet systems.
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Coil Testers & Power Supplies
POB Series
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Coil testers and power supply units, models POB30 and POB40 are ideal for commissioning and maintenance testing of circuit breakers. The station supply is not available. The POB series are power supply units implementing the latest power electronics technology. They are developed for use in switchyards, power and industrial environment. In addition to providing current and voltage for breaker testing, they can measure certain coil parameters.
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Flux Meter and Measuring Coils
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MAGNET-PHYSIK Dr. Steingroever GmbH
The measurement of magnetic quantities can almost always be traced back to the measurement of a magnetic flux. The electronic fluxmeter is therefore the most versatile measuring instrument in magnet technology as a measuring instrument for magnetic flux. The fluxmeter is operated together with a measuring coil.
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Product
Coil Coating Wet Film Wheels
Elcometer 3230
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The outer wheels are knurled to allow measurements to be taken on slippery coatings or on fast moving substrates.
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Product
Rogowski Coil
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A Rogowski coil produces a voltage output based on the rate of change of the current input. The absence of magnetic core ensures low inductance and comes with no saturation, resulting with a fast response and no inserted losses.
