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FE-MF300-10GS AC Helmholtz coil case sharing
Release time:
2020-02-25
Source:
Www.fe2100.com Hunan Yongyi Technology Co., Ltd.
When the power supply of the Helmholtz coil is a DC constant current power supply, the magnetic field generated is a DC magnetic field, whereas when the power supply is an AC power supply, the magnetic field generated is an AC magnetic field.
Helmholtz coilIt is composed of two single coils. Typical applications are measuring magnetic field (magnetic electricity) and generating magnetic field (electromagnetism). When a magnetic field occurs, the center point of the two coils produces a uniform magnetic field with a large uniform area and an open space. To achieve one-dimensional, two-dimensional, three-dimensional combination of magnetic field, can provide AC and DC magnetic field, current and magnetic field has a good linear relationship. Suitable for research institutes, universities and enterprises to do material magnetic or testing experiments, used in materials, electronics, biology, medical, etc. WhenHelmholtz coilThe power supply is a DC constant current power supply, then the magnetic field generated is a DC magnetic field, and when the power supply is an AC power supply, the magnetic field generated is an AC magnetic field.
1.CommunicationHelmholtz coilregular constant: K = 0.2539(cm), physical coil radius r = 145.3mm.
| Winding wire diameter | Coil inner diameter | Coil outer diameter | Single coil turns | Total coil resistance |
| 1.0mm | 278mm | 302mm | 80 | 3.2Ω |
2. magnetic field test
| Constant current (A) | Magnetic field calculation data (Gs) | magnetic field | Actual | Test | Data | (Gs) |
| 15,15 | -15,15 | -15,-15 | 15,-15 | 0,0 | ||
| 0.500 | 2.48 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| 1.000 | 4.95 | 5.0 | 5.0 | 5.0 | 5.0 | 5.0 |
| 2.000 | 9.90 | 9.9 | 9.9 | 9.9 | 9.9 | 9.9 |
Linearity of coil: 1.0%, which can be set according to the corresponding current formula of magnetic field in actual use.
The above data is DC data, and AC data is the same as DC data.
50Hz coil impedance is about 4.3 Ω.
3. uniform zone range
| magnetic field error |
0.1% | 0.5% | 1.0% |
| uniform area | 34mm*34mm *34mm | 53mm*53mm *53mm |
62mm*62mm*62mm |
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