The Installation and Commissioning of the 2D Helmholtz Coil Magnetic Field Control System

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The Installation and Commissioning of Magnetic field control system

 

 

Helmholtz Coil Magnetic Field Control System

Helmholtz Coil Magnetic Field Control System

 

 Two-dimensional Helmholtz coil  2DXHC7-210 Helmholtz coil  2DXHC7-210 Two-dimensional Helmholtz coil

2DXHC7-210 Two-dimensional Helmholtz coil

 

Overall Dimensions: 380mm(L) x 253mm(W) x 366mm(H)
Coil spacing
X Axial: 78mm
Y Axial: 21mm
Weight: 47kg

 

Performance test report
 Introduction
    1. Test purpose
Through the analysis of the test results, the evaluation of the product performance is obtained;
Evaluate whether the test product meets the technical requirements;
Provide reference data for product design and after-sales service, and provide a strong basis for leaving the factory.
    2. Basic information
 Product Name:
Two-dimensional Helmholtz coil		 Product model: 2DXHC7-210
Test time: Jan. 2, 2024
    3. Testing environment
The detection environment is closer to the actual environmental conditions used by the user, including factors such as lead wire length and ambient temperature. The time is selected in the time interval where the fluctuation of the geomagnetic field is small. Before the test, the instruments required for the test were turned on and warmed up in advance and the measurement environment was recorded, as shown in Table 1.
Measurement environment
Environment
temperature		 Product initial
temperature		 Lead length Environmental
magnetic field
8.0℃ 8.0℃ 4M 0~30000nT
Table 1 Measurement environment data
　
Magnetic field parameter test
    1. Using the device
DX-F2031 power supply
DX-180 Gauss Meter
    2. Magnetic field measurement
This product uses the following measurement methods:
Fixed-point measurement: measure the magnetic field at the target point
Magnetic field strength
Axis Display current (A) Display voltage Voltage (V) Magnetic field
strength（Gs）
X 5 - 114.88
X 10 - 230.02
X 25 72 575.09
Y 1.4 - 115.17
Y 2.8 - 231.38
Y 6.7 55 551.39
Table 2 Magnetic field strength data
 
Magnetic field uniformity
Axis Area Current Max Min Uniformity Note
X Sφ35mm 10A 231.128Gs 229.643Gs 0.48% 　
Y Sφ35mm 2.8A 231.260Gs 229.755Gs -0.71% 　
Table 3 Uniformity data
　
Electrical parameter test
    1. Using equipment
Digital multimeter
Impedance analyzer
    2. Test method
The digital instrument with bridge circuit and voltammetry is used for measurement. The measurement results are shown in the table below.
Resistance R measurement
Axis Product temperature Measuring resistance ResistanceR@20℃ ResistanceR@85℃
X 8.0℃ 2.810Ω 2.974Ω 3.863Ω
Y 8.0℃ 8.030Ω 8.499Ω 11.040Ω
Table 4 Resistance R data
　
X-axis Inductance Ls, reactance Z measurement (test level 5V)
Ls MIN[H] FREQ[Hz] Ls MAX[H] FREQ[Hz]
 19.0567m  1.00000k  37.6327m 20
Z  MIN[Ω] FREQ[Hz] Z  MAX[Ω] FREQ[Hz]
8.38187 20 124.073  1.00000k
Table 5 X-axis inductance Ls and reactance Z data
　
X-axis Inductance Ls, reactance Z-scan measurement
POINTS FREQ[Hz] Ls Z  POINTS FREQ[Hz] Ls Z 
1 20  37.6327m 8.38187 102 514.9  20.6069m 69.347
2 24.9  33.6164m 8.89145 103 519.8  20.5841m 69.9211
3 29.8  31.1532m 9.38317 104 524.7  20.5616m 70.4945
4 34.7  29.5339m 9.87886 105 529.6  20.5393m 71.0673
5 39.6  28.4019m 10.3892 106 534.5  20.5172m 71.6394
6 44.5  27.5810m 10.9155 107 539.4  20.4954m 72.2112
7 49.4  26.9591m 11.4587 108 544.3  20.4744m 72.7847
8 54.3  26.4700m 12.0159 109 549.2  20.4531m 73.3554
9 59.2  26.0760m 12.5875 110 554.1  20.4318m 73.9254
10 64.1  25.7448m 13.1685 111 559  20.4108m 74.4949
11 69  25.4689m 13.7611 112 563.9  20.3901m 75.0643
12 73.9  25.2316m 14.3621 113 568.8  20.3695m 75.6326
13 78.8  25.0252m 14.9708 114 573.7  20.3490m 76.2004
14 83.7  24.8430m 15.5861 115 578.6  20.3289m 76.7681
15 88.6  24.6806m 16.2068 116 583.5  20.3088m 77.3348
16 93.5  24.5338m 16.8318 117 588.4  20.2890m 77.9016
17 98.4  24.3977m 17.4583 118 593.3  20.2692m 78.4673
18 103.3  24.2733m 18.0896 119 598.2  20.2496m 79.0324
19 108.2  24.1589m 18.7241 120 603.1  20.2303m 79.5975
20 113.1  24.0522m 19.3603 121 608  20.2112m 80.162
21 118  23.9518m 19.998 122 612.9  20.1919m 80.7253
22 122.9  23.8579m 20.6374 123 617.8  20.1730m 81.2886
23 127.8  23.7686m 21.2774 124 622.7  20.1544m 81.8518
24 132.7  23.6841m 21.9183 125 627.6  20.1359m 82.4144
25 137.6  23.6036m 22.5597 126 632.5  20.1175m 82.9764
26 142.5  23.5266m 23.2015 127 637.4  20.0993m 83.5381
27 147.4  23.4525m 23.8428 128 642.3  20.0811m 84.0988
28 152.3  23.3814m 24.4841 129 647.2  20.0631m 84.6595
29 157.2  23.3126m 25.125 130 652.1  20.0454m 85.2197
30 162.1  23.2460m 25.7653 131 657  20.0277m 85.7795
31 167  23.1814m 26.4052 132 661.9  20.0101m 86.3385
32 171.9  23.1171m 27.0431 133 666.8  19.9929m 86.8977
33 176.8  23.0562m 27.6817 134 671.7  19.9756m 87.4562
34 181.7  22.9971m 28.3197 135 676.6  19.9584m 88.0138
35 186.6  22.9394m 28.9568 136 681.5  19.9414m 88.5712
36 191.5  22.8834m 29.5933 137 686.4  19.9247m 89.1287
37 196.4  22.8285m 30.2285 138 691.3  19.9079m 89.6852
38 201.3  22.7750m 30.8631 139 696.2  19.8914m 90.2421
39 206.2  22.7255m 31.5 140 701.1  19.8751m 90.7983
40 211.1  22.6742m 32.1325 141 706  19.8587m 91.3535
41 216  22.6241m 32.7642 142 710.9  19.8424m 91.9087
42 220.9  22.5750m 33.3947 143 715.8  19.8264m 92.4637
43 225.8  22.5269m 34.0242 144 720.7  19.8105m 93.0181
44 230.7  22.4796m 34.6524 145 725.6  19.7946m 93.5718
45 235.6  22.4331m 35.2794 146 730.5  19.7788m 94.1254
46 240.5  22.3873m 35.9052 147 735.4  19.7633m 94.6789
47 245.4  22.3423m 36.5297 148 740.3  19.7478m 95.2315
48 250.3  22.2982m 37.1535 149 745.2  19.7324m 95.7843
49 255.2  22.2549m 37.7761 150 750.1  19.7172m 96.3366
50 260.1  22.2121m 38.3972 151 755  19.7020m 96.8883
51 265  22.1702m 39.0176 152 759.9  19.6870m 97.4398
52 269.9  22.1287m 39.6364 153 764.8  19.6720m 97.9906
53 274.8  22.0880m 40.2545 154 769.7  19.6571m 98.5412
54 279.7  22.0477m 40.8711 155 774.6  19.6418m 99.0891
55 284.6  22.0080m 41.4867 156 779.5  19.6272m 99.6393
56 289.5  21.9689m 42.1011 157 784.4  19.6127m 100.189
57 294.4  21.9303m 42.7143 158 789.3  19.5982m 100.738
58 299.3  21.8923m 43.3266 159 794.2  19.5839m 101.287
59 304.2  21.8543m 43.9374 160 799.1  19.5697m 101.836
60 309.1  21.8174m 44.5477 161 804  19.5557m 102.385
61 314  21.7811m 45.157 162 808.9  19.5416m 102.932
62 318.9  21.7451m 45.7651 163 813.8  19.5277m 103.48
63 323.8  21.7098m 46.3722 164 818.7  19.5138m 104.027
64 328.7  21.6748m 46.9783 165 823.6  19.5000m 104.574
65 333.6  21.6402m 47.5833 166 828.5  19.4864m 105.121
66 338.5  21.6062m 48.1874 167 833.4  19.4728m 105.668
67 343.4  21.5725m 48.7903 168 838.3  19.4592m 106.214
68 348.3  21.5394m 49.3925 169 843.2  19.4459m 106.76
69 353.2  21.5064m 49.9933 170 848.1  19.4326m 107.305
70 358.1  21.4742m 50.5938 171 853  19.4193m 107.85
71 363  21.4422m 51.193 172 857.9  19.4061m 108.395
72 367.9  21.4105m 51.7909 173 862.8  19.3930m 108.939
73 372.8  21.3792m 52.388 174 867.7  19.3800m 109.484
74 377.7  21.3483m 52.9843 175 872.6  19.3671m 110.028
75 382.6  21.3178m 53.5797 176 877.5  19.3543m 110.571
76 387.5  21.2875m 54.174 177 882.4  19.3415m 111.114
77 392.4  21.2576m 54.7675 178 887.3  19.3288m 111.658
78 397.3  21.2280m 55.3598 179 892.2  19.3163m 112.2
79 402.2  21.1990m 55.952 180 897.1  19.3038m 112.743
80 407.1  21.1701m 56.5429 181 902  19.2913m 113.285
81 412  21.1415m 57.1328 182 906.9  19.2789m 113.827
82 416.9  21.1133m 57.7221 183 911.8  19.2666m 114.369
83 421.8  21.0854m 58.3103 184 916.7  19.2543m 114.91
84 426.7  21.0577m 58.8977 185 921.6  19.2422m 115.451
85 431.6  21.0304m 59.4847 186 926.5  19.2300m 115.992
86 436.5  21.0034m 60.0706 187 931.4  19.2181m 116.533
87 441.4  20.9765m 60.6554 188 936.3  19.2060m 117.072
88 446.3  20.9500m 61.2397 189 941.2  19.1942m 117.613
89 451.2  20.9239m 61.8237 190 946.1  19.1824m 118.153
90 456.1  20.8980m 62.4064 191 951  19.1706m 118.692
91 461  20.8723m 62.9885 192 955.9  19.1588m 119.231
92 465.9  20.8469m 63.57 193 960.8  19.1481m 119.774
93 470.8  20.8217m 64.1506 194 965.7  19.1365m 120.313
94 475.7  20.7969m 64.7306 195 970.6  19.1250m 120.851
95 480.6  20.7723m 65.3101 196 975.5  19.1134m 121.389
96 485.5  20.7479m 65.8885 197 980.4  19.1021m 121.927
97 490.4  20.7238m 66.4664 198 985.3  19.0906m 122.464
98 495.3  20.6997m 67.0433 199 990.2  19.0793m 123.001
99 500.2  20.6763m 67.6206 200 995.1  19.0681m 123.538
100 505.1  20.6530m 68.1968 201  1.00000k  19.0567m 124.073
101 510  20.6298m 68.7723 　 　 　 　
Table 6 X-axis Detailed frequency data of inductance Ls and reactance Z

 

Y-axis Inductance Ls, reactance Z measurement (test level 5V)
Ls MIN[H] FREQ[Hz] Ls MAX[H] FREQ[Hz]
 30.0275m  1.00000k  90.2791m 20
Z  MIN[Ω] FREQ[Hz] Z  MAX[Ω] FREQ[Hz]
18.8364 20 195.932  1.00000k
Table 7 Y-axis inductance Ls and reactance Z data
　
Y-axis Inductance Ls, reactance Z-scan measurement
POINTS FREQ[Hz] Ls Z  POINTS FREQ[Hz] Ls Z 
1 20  90.2791m 18.8364 102 514.9  32.5118m 111.233
2 24.9  78.4580m 20.566 103 519.8  32.4767m 112.128
3 29.8  69.6157m 21.9125 104 524.7  32.4422m 113.023
4 34.7  63.0382m 23.0143 105 529.6  32.4079m 113.917
5 39.6  58.0978m 23.9662 106 534.5  32.3739m 114.81
6 44.5  54.3306m 24.8267 107 539.4  32.3399m 115.701
7 49.4  51.4156m 25.6338 108 544.3  32.3080m 116.597
8 54.3  49.1196m 26.4095 109 549.2  32.2748m 117.486
9 59.2  47.2694m 27.1687 110 554.1  32.2419m 118.376
10 64.1  45.7733m 27.926 111 559  32.2091m 119.263
11 69  44.5355m 28.6826 112 563.9  32.1766m 120.15
12 73.9  43.5040m 29.4453 113 568.8  32.1443m 121.035
13 78.8  42.6338m 30.2162 114 573.7  32.1124m 121.92
14 83.7  41.8903m 30.9958 115 578.6  32.0805m 122.804
15 88.6  41.2527m 31.7889 116 583.5  32.0489m 123.686
16 93.5  40.6951m 32.5884 117 588.4  32.0177m 124.569
17 98.4  40.2049m 33.3972 118 593.3  31.9866m 125.449
18 103.3  39.7723m 34.2176 119 598.2  31.9556m 126.329
19 108.2  39.3877m 35.048 120 603.1  31.9253m 127.209
20 113.1  39.0434m 35.8879 121 608  31.8947m 128.087
21 118  38.7336m 36.737 122 612.9  31.8647m 128.964
22 122.9  38.4524m 37.5944 123 617.8  31.8349m 129.841
23 127.8  38.1968m 38.4601 124 622.7  31.8052m 130.717
24 132.7  37.9629m 39.3332 125 627.6  31.7758m 131.591
25 137.6  37.7479m 40.2129 126 632.5  31.7466m 132.465
26 142.5  37.5484m 41.098 127 637.4  31.7174m 133.338
27 147.4  37.3634m 41.9891 128 642.3  31.6886m 134.21
28 152.3  37.1913m 42.8857 129 647.2  31.6599m 135.081
29 157.2  37.0306m 43.7873 130 652.1  31.6316m 135.952
30 162.1  36.8792m 44.6927 131 657  31.6034m 136.821
31 167  36.7370m 45.6027 132 661.9  31.5753m 137.689
32 171.9  36.6007m 46.5153 133 666.8  31.5475m 138.557
33 176.8  36.4733m 47.4322 134 671.7  31.5198m 139.424
34 181.7  36.3523m 48.3522 135 676.6  31.4923m 140.29
35 186.6  36.2375m 49.2754 136 681.5  31.4650m 141.154
36 191.5  36.1277m 50.201 137 686.4  31.4381m 142.02
37 196.4  36.0225m 51.1285 138 691.3  31.4111m 142.883
38 201.3  35.9218m 52.0582 139 696.2  31.3842m 143.745
39 206.2  35.8249m 52.9893 140 701.1  31.3578m 144.607
40 211.1  35.7316m 53.922 141 706  31.3313m 145.468
41 216  35.6418m 54.8564 142 710.9  31.3054m 146.329
42 220.9  35.5546m 55.7911 143 715.8  31.2794m 147.188
43 225.8  35.4705m 56.7273 144 720.7  31.2535m 148.047
44 230.7  35.3891m 57.6644 145 725.6  31.2279m 148.906
45 235.6  35.3100m 58.6022 146 730.5  31.2025m 149.763
46 240.5  35.2331m 59.5402 147 735.4  31.1773m 150.62
47 245.4  35.1581m 60.4787 148 740.3  31.1522m 151.476
48 250.3  35.0852m 61.4176 149 745.2  31.1270m 152.33
49 255.2  35.0146m 62.3569 150 750.1  31.1023m 153.185
50 260.1  34.9456m 63.2966 151 755  31.0777m 154.039
51 265  34.8781m 64.236 152 759.9  31.0534m 154.892
52 269.9  34.8120m 65.1752 153 764.8  31.0290m 155.744
53 274.8  34.7477m 66.1148 154 769.7  31.0049m 156.595
54 279.7  34.6844m 67.0538 155 774.6  30.9809m 157.446
55 284.6  34.6225m 67.9927 156 779.5  30.9570m 158.296
56 289.5  34.5618m 68.9309 157 784.4  30.9334m 159.146
57 294.4  34.5023m 69.8693 158 789.3  30.9099m 159.995
58 299.3  34.4438m 70.807 159 794.2  30.8864m 160.842
59 304.2  34.3870m 71.7455 160 799.1  30.8633m 161.69
60 309.1  34.3308m 72.6825 161 804  30.8403m 162.537
61 314  34.2755m 73.6188 162 808.9  30.8174m 163.383
62 318.9  34.2213m 74.5547 163 813.8  30.7946m 164.228
63 323.8  34.1679m 75.4901 164 818.7  30.7720m 165.073
64 328.7  34.1152m 76.4243 165 823.6  30.7495m 165.918
65 333.6  34.0633m 77.358 166 828.5  30.7271m 166.76
66 338.5  34.0121m 78.2906 167 833.4  30.7049m 167.604
67 343.4  33.9617m 79.2229 168 838.3  30.6829m 168.446
68 348.3  33.9120m 80.1541 169 843.2  30.6611m 169.288
69 353.2  33.8628m 81.0842 170 848.1  30.6392m 170.129
70 358.1  33.8147m 82.0145 171 853  30.6175m 170.969
71 363  33.7669m 82.9432 172 857.9  30.5962m 171.81
72 367.9  33.7194m 83.8703 173 862.8  30.5749m 172.65
73 372.8  33.6728m 84.7971 174 867.7  30.5537m 173.488
74 377.7  33.6268m 85.7232 175 872.6  30.5325m 174.326
75 382.6  33.5813m 86.6482 176 877.5  30.5116m 175.164
76 387.5  33.5365m 87.5726 177 882.4  30.4908m 176.001
77 392.4  33.4919m 88.4953 178 887.3  30.4701m 176.837
78 397.3  33.4476m 89.4167 179 892.2  30.4495m 177.673
79 402.2  33.4042m 90.3379 180 897.1  30.4291m 178.509
80 407.1  33.3612m 91.258 181 902  30.4089m 179.344
81 412  33.3187m 92.177 182 906.9  30.3887m 180.179
82 416.9  33.2764m 93.0946 183 911.8  30.3688m 181.013
83 421.8  33.2347m 94.0117 184 916.7  30.3488m 181.846
84 426.7  33.1933m 94.9273 185 921.6  30.3291m 182.68
85 431.6  33.1524m 95.842 186 926.5  30.3093m 183.512
86 436.5  33.1119m 96.7559 187 931.4  30.2898m 184.343
87 441.4  33.0718m 97.6684 188 936.3  30.2702m 185.174
88 446.3  33.0320m 98.5801 189 941.2  30.2510m 186.006
89 451.2  32.9928m 99.4912 190 946.1  30.2318m 186.836
90 456.1  32.9538m 100.401 191 951  30.2127m 187.665
91 461  32.9150m 101.309 192 955.9  30.1937m 188.495
92 465.9  32.8767m 102.216 193 960.8  30.1745m 189.32
93 470.8  32.8386m 103.122 194 965.7  30.1560m 190.149
94 475.7  32.8011m 104.028 195 970.6  30.1372m 190.976
95 480.6  32.7639m 104.932 196 975.5  30.1187m 191.804
96 485.5  32.7269m 105.835 197 980.4  30.1003m 192.63
97 490.4  32.6902m 106.737 198 985.3  30.0819m 193.456
98 495.3  32.6538m 107.638 199 990.2  30.0638m 194.283
99 500.2  32.6180m 108.539 200 995.1  30.0457m 195.108
100 505.1  32.5823m 109.438 201  1.00000k  30.0275m 195.932
101 510  32.5470m 110.336 　 　 　 　
Table 8 Y-axis Detailed frequency data of inductance Ls and reactance Z

 

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