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Helmholtz and Search Coils
Lake Shore
Features of Helmholtz Coils (Field Standards)• 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
*Model dependent, see technical specifications
Specifications
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MH-2.5 |
MH-6 |
MH-12 |
MH-2X-10 |
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Field accuracy |
0.75% |
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Inside diameter |
2.5 in |
6 in |
12 in |
12 in (x-axis) and |
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Field strength |
≈30 G/A |
≈25 G/A |
≈13 G/A |
≈15 G/A |
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Maximum |
2 A (DC or RMS) |
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Field uniformity |
0.5% within a cylindrical volume 0.75 in long, 0.75 in diameter, at center of coil |
0.5% within a cylindrical volume 1.6 in long, 1.6 in diameter, at center of coil |
0.5% within a cylindrical volume 3.0 in long, 3.0 in diameter, at center of coil |
≈0.5% within a 2.5 in cube, at center of coil |
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DC coil resistance/ |
3 Ω/6.3 mH |
10 Ω/36 mH |
20 Ω/93 mH |
20 Ω (x-axis), 15 Ω (y-axis)/ |
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Operating |
0 °C to 40 °C (32 °F to 104 °F) |
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