WD type electromagnet (also known as Weiss-type or U-type electromagnet), the magnetic field air gap is adjustable in both directions, the structure of single yoke, the direction of the magnetic field is horizontal; stand upright, there is a wide operating space, easy to take and place samples and The combined structure of other equipment is one of the most common electromagnets in magnetic research. It is suitable for Hall effect research, magnetoresistance effect research, hysteresis extension research, torque magnetometer, force magnetometer, vibrating sample magnetometer, magnetic susceptibility measuring device, magnetic material measuring device, etc. The WD type electromagnet has a wide magnetic field space and a wide air gap adjustment range. It is a very common type for experiments and factory applications.

Helmholtz coil has a large uniform area, a wide use space and easy operation. It can realize one-dimensional, two-dimensional, and three-dimensional combined magnetic fields, and can provide AC and DC magnetic fields. The current has a good linear relationship with the magnetic field. It is suitable for various research institutes, universities and enterprises to do material magnetism or testing experiments, applied to materials, electronics, biology, medical treatment, aerospace, chemistry, applied physics and other disciplines. Its main purpose: to generate standard magnetic fields; Cancellation and compensation, geomagnetic environment simulation, determination of magnetic shielding effect, electromagnetic interference simulation experiment, calibration of Hall probes and various magnetometers, research on biological magnetic field and magnetic properties of materials.  three-dimensional coil Features of the three-dimensional coil: The magnetic field realizes the X, Y, and Z axial magnetic fields respectively, and the magnetic field per axis is generally lower. It is especially suitable for generating standard magnetic fields, cancellation and compensation of the earth's magnetic field, geomagnetic environment simulation, determination of magnetic shielding effect, electromagnetic interference simulation experiment, calibration of Hall probes and various magnetometers, research of biological magnetic field and magnetic properties of materials Research.   Coil model radius(mm) Central magnetic field (Gs) Evenness % Uniform sphere diameter（mm） Power range per dimension (W) One-dimensional weight (Kg) Three-dimensional weight （Kg） HLY30-50 300 50 5 200 420 55   1 150 HLY30-10 300 10 0.5 100 90-120 12 38 0.1 90 HLY30-2 300 2 0.05 60 18~32 3.5 11 0.01 40 HLY25-1000 250 1000 5 160 5000 500   1 125 HLY25-500 250 500 0.5 100 2500 250   0.1 75 HLY25-300 250 300 0.05 50 1600 150   0.01 33 HLY25-100 250 100 5 160 600 50   1 125 HLY25-50 250 50 0.5 100 300~620 30 138 0.1 75 HLY25-10 250 10 0.05 50 60~110 8 32 0.01 33 HLY25-2 250 2 5 160 12~18 4 14 1 125 HLY20-500 200 500 0.5 80 2000 160   0.1 60 HLY20-300 200 300 0.05 4

Helmholtz coil has a large uniform area, a wide use space and easy operation. It can realize one-dimensional, two-dimensional, and three-dimensional combined magnetic fields, and can provide AC and DC magnetic fields. The current has a good linear relationship with the magnetic field. It is suitable for various research institutes, universities and enterprises to do material magnetism or testing experiments, applied to materials, electronics, biology, medical treatment, aerospace, chemistry, applied physics and other disciplines. Its main purpose: to generate standard magnetic fields; Cancellation and compensation, geomagnetic environment simulation, determination of magnetic shielding effect, electromagnetic interference simulation experiment, calibration of Hall probes and various magnetometers, research on biological magnetic field and magnetic properties of materials. Accept any customization of parameters.

Permanent magnets have a great advantage over electromagnets in generating a constant magnetic field. However, the simplification of their structure and the fixed and immutable magnetic field limit their application. Our company is committed to the research and development of various permanent magnets with adjustable magnetic field, so that the air gap can be adjusted, the magnetic field intensity can be adjusted, and the uniformity zone is stable. The function of the permanent magnet is closer to the electromagnet, and the volume is smaller than the electromagnet, making it more widely used. .