Laboratory Electromagnet
Laboratory Electromagnet is a closed magnetic circuit, composed of the coil, yoke, iron core (pole), and pole head.
Energized electrically conductive winding (coil) can generate a magnetic field, the internally arranged irregular ferromagnetic metal atoms of the iron core (pole) rearrange regularly with the action of the external coil's magnetic field, together point in one direction, thereby these ferromagnetic metal atoms are magnetized to increase the magnetic flux so that a considerable amount of the magnetic flux Φ is produced during the iron core, the yoke, and the air gap. When the control power supply current is changed, the controllable high magnetic field is formed between the air gap of two poles.
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Working Principle of the Laboratory Electromagnet
Precautions:
Power supply parameters: Make sure the power supply used meets the rated voltage and current requirements of the customized DC electromagnet. Too high or too low voltage may cause unstable performance or damage to the electromagnet.
Current control: Make sure the current control is stable during use. Too high a current may cause the electromagnet to overheat or the coil to burn out, while too low a current may result in insufficient magnetic field strength.
Temperature control: The electromagnet generates heat when working, so ensure adequate heat dissipation conditions to avoid overheating. Long-term high current operation may require cooling measures to be considered.
Safety distance: Keep a safe distance when working to avoid the impact of electromagnetic radiation on the human body. Especially when a strong magnetic field is generated, avoid placing ferromagnetic objects close to the electromagnet to avoid adsorption or collision accidents.
Electromagnetic shielding: If there are equipment or devices that are sensitive to magnetic fields around, you need to consider shielding the electromagnet to prevent interference or damage to other equipment.
Transportation and Installation: Be careful when transporting and installing the electromagnet to avoid damage caused by collision or falling. When installing, make sure the electromagnet is in a stable position and well connected.
Periodic inspection: Regularly check whether the connecting wires, coils, cooling systems, and other components of the electromagnet are working properly to ensure the safety and stability of the equipment.
Usage environment: Consider the conditions of the use environment and avoid placing the customized DC electromagnet in a humid, corrosive, or flammable environment to prevent equipment damage or safety accidents.
What does a Laboratory Electromagnet do?
Laboratory electromagnet or dipole electromagnet can generate adjustable magnetic fields and are suitable for magnetic experiments in scientific research institutions, colleges and universities, and factories.
Lab electromagnet applies to Hall effect studies, magnetoresistance effect studies, magneto-optical research, magnetostriction studies, torque magnetometers, force method magnetometers, VSM, etc.
Electromagnet magnetic field control system
The CE certificate of DX series electromagnets
Trouble shooting:
Trouble |
Possible causes |
How to check |
Solution |
Can’t measure the magnetic field after electrify |
Electromagnet is in the open circuit state |
Check the connection between the electromagnet and power supply |
Connect the wire |
Power supply doesn’t work |
Measure the output current of power supply |
Inform the manufacturer for maintenance |
|
The inside winding of electromagnet is broken |
Measure the DC resistance of electromagnet |
Inform the manufacturer for maintenance |
|
The gauss meter is broken or measurement is wrong |
Check the gauss meter or change another gauss meter |
Please note whether the gauss meter is used correctly |
|
Magnetic field can’t reach the index |
Electromagnet series or parallel windings are in opposite direction |
Change the terminal connection direction and measure the magnetic field |
|
The output current of power supply is not accurate |
Measure the output current of power supply |
Inform the manufacturer for maintenance |
|
The inside winding of electromagnet is in short circuit |
Measure the DC resistance of electromagnet |
Inform the manufacturer for maintenance |
|
The air gap is incorrect |
Check the air gap |
|
|
The used pole head is wrong |
Change the smaller pole head or FeCo pole head |
|
|
When working in high magnetic field, the current can’t be adjust to setting value |
The electromagnet works for a long time and heats over, the resistance is high |
Measure the surface temperature of the coil, Measure the DC resistance of electromagnet |
Stop working until the coil is cooled down |
Electric leakage |
The winding of electromagnet is in short circuit |
|
Inform the manufacturer for maintenance |
Water leakage |
Pipe leakage |
|
Inform the manufacturer for maintenance |
Pipe condensation |
The water temperature in the cycle refrigerator is too low |
Set the water temperature to be 15~20℃ |
Parameters of lab electromagnet(take the DXWD electromagnet as an example):
Model |
Pole Diameter |
Air Gap Range |
Pole Face |
Magnetic field index |
Power |
|
(mm) |
(mm) |
(mm) |
Air Gap (mm) |
Maxium Magnetic Field (T) |
||
DXWD-50 |
Φ50 |
0-80 |
Φ50 |
10 |
0.9 |
0.3KW |
DXWD-80 |
Φ80 |
0-80 |
Φ50 |
20 |
1.1 |
1.2KW |
DXWD-100 |
Φ100 |
0-80 |
Φ60 |
10 |
1.8 |
1.6KW |
Φ100 |
20 |
1 |
||||
DXWD-130 |
Φ130 |
0-100 |
Φ60 |
10 |
2.3 |
3.0KW |
Φ120 |
30 |
1.2 |
||||
DXWD-175 |
Φ175 |
0-120 |
Φ60 |
10 |
2.3 |
5.0KW |
Φ100 |
50 |
1.25 |
||||
Φ150 |
100 |
0.6 |
||||
DXWD-200 |
Φ200 |
0-140 |
Φ60 |
10 |
2.6 |
8.0KW |
Φ80 |
30 |
1.6 |
||||
Φ140 |
70 |
0.9 |
||||
DXWD-250 |
Φ250 |
0-140 |
Φ60 |
10 |
2.9 |
12.0KW |
Φ80 |
40 |
1.9 |
||||
Φ120 |
80 |
1.1 |
||||
DXWD-280 |
Φ280 |
0-150 |
Φ70 |
10 |
3.1 |
16.0KW |
Φ120 |
70 |
1.5 |
||||
DXWD-380 |
Φ380 |
0-180 |
Φ100 |
40 |
2.2 |
20.0KW |
Customization is available, and most of Dexinmag products are custom-made.
Dexinmag company manufactures a variety of electromagnets, and according to customer requirements, Dexinmag's electromagnets can be adapted to temperature controllers, water cooling systems, translation stages, etc.
DXWD-50 air gap electromagnet with 360° Rotation Stage
Home > Magnetic Field Source > Electromagnet > Product Introduction
Structure diagram of dipole electromagnet
Air Gap: The spacing of the two magnetic poles; the magnetic field is generated in the air gap.
Pole cap: Key components that can generate a uniform magnetic field between the poles; the two planes are the pole surface.
Coil: The key part of the driving excitation; the internal is a coil group.
Yoke: The magnetic yoke that guides the direction of the magnetic circuit.
Adjusting Handle: Adjust the advance and retreat of the poe head by rotating to adjust the air gap.
Terminal: Connect the two wiring rooms in series/parallel, and connect with the inspirational power supply.
Inlet or Outlet Pipe: Connect the water-cooling circulation system to make the electromagnet cool.
Chassis: Aable or fixed base that can be selected.
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Customization is available, please let us know your requirements, and we will design a professional plan for you. Thank you!
Dexinmag® • 2024