Helmholtz Coil Magnetic Field System
System Composition:
Helmholtz coil: An AC magnetic field of a certain frequency can be divided into one, two, and three dimensions
Power supply: Signal generator + power amplifier, frequency, and waveform are adjustable; Power supply with single waveform (mostly sine wave), frequency adjustable
Gaussmeter: measuring ac and DC magnetic field intensity, with analog output interface, can be connected to an oscilloscope to observe waveform
Control software: adjustable ac magnetic field frequency and secondary value, and real-time monitoring of magnetic field changes, magnetic field peak, frequency, and other parameters can be observed.
Parameters of Helmholtz Coil
Model: DXHC25-100
The radius: 250mm
Center magnetic field: 100Gs
The diameter of the uniformity area: 160mm; the degree of uniformity area: 5%
The diameter of the uniformity area: 125mm; the degree of uniformity area: 1%
The diameter of the uniformity area: 40mm; the degree of uniformity area: 0.5%
Approx. weight: 50kg
Parameters of power amplifier
|
Model |
DXACF-2500 |
|---|---|
|
Max. output voltage |
50V |
|
Max. output current |
50A |
|
Working frequency range |
0-1000Hz |
|
Amplitude of input signal |
0-±5V |
|
Nonlinear distortion (current) |
<0.5% |
|
Output SNR |
>76dB |
|
Power input |
220VAC±10% |
|
Surrounding temperature |
0-40℃ |
|
Surrounding humidity |
<80%R.H. |
|
Cooling mode |
Air cooling |
Parameters of high-precision gaussmeter
|
Max.Value Min.Value Peak Value Valley Peak |
Automatic Zero, Automatic /manual range |
Probe calibration, memory operation mode |
|---|---|---|
|
Measuring graphic display, curve graphic |
RS232/USB connector |
Threshold setting (upper limit and lower limit) and alarm |
|
Data saving (automatic /manual) /Reading |
Zero setting/ Relative measuring mode |
Unit selectable, Gauss, Tesla, A/M or Oe |
|
Range |
±100kGs/±10T (common) 6Gs/600uT (weak magnetic probe) |
|---|---|
|
Resolution |
0.1uT/1mT (standard), 0.01uT/0.1mT (weak magnetic probe) |
|
Accuracy ( display value) |
DC: ±0.20% of reading, ±0.05% of range |
|
AC: ±1% of reading, ±0.5% of range |
|
|
Frequency range |
DC |
|
AC ( Effective value) 0-50kHz |
|
|
Frequency display range: 1 to 9999Hz |
|
|
Analog output ( X, Y, Z) |
Output voltage: ±3V F.S |
|
Analog connector |
BNC ±3V-±3T |
|
Additional influence |
Temperature coefficient ±（0.02% ±1 count）℃ |
|
Temperature range |
Working temperature: 0℃+50℃ |
|
Storage temperature: -20℃-+60℃ |
|
|
Communication interface |
RS-232/USB/BNC |
|
Panel display |
VGA, 320*240 pixel, 3.5-inch colorful screen |
|
Power |
220V/50-60Hz |
The corresponding value among frequency, magnetic field and current
|
Frequency |
Current |
Magnetic field strength |
|---|---|---|
|
0HZ |
50A |
100GS |
|
10HZ |
50A |
100GS |
|
50HZ |
40A |
80GS |
|
1000HZ |
2A |
4GS |
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The Installation and Commissioning of the 2D Helmholtz Coil Magnetic Field Control System
The electromagnetic field control platform is mainly composed of Helmholtz coils and a programmed Gauss meter and power supply. These devices are connected to the computer through a serial cable and then control the system through the upper computer software in the computer.
