DXHC10-200 One-dimensional DC Helmholtz Coil: Quality Inspection Report

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DXHC10-200 One-dimensional DC Helmholtz Coil P1 DXHC10-200 One-dimensional DC Helmholtz Coil P2 DXHC10-200 One-dimensional DC Helmholtz Coil P3 DXHC10-200 One-dimensional DC Helmholtz Coil P4

 

Overall Dimensions: 280mm(L) x 200mm(W) x 320mm(H)

Weight: 15.514kg

 

 

 

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:
DC One-dimensional Helmholtz coil
Product model: DXHC10-200
Test time: October 10, 2025
    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
20.0℃ 20.0℃ - 0~30000nT
Table 1 Measurement environment data
 
Magnetic field parameter test
    1. Using the device
DX-F2031 power supply
DX-180 Gauss Meter
DXACP Power Amplifier
    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
No. Display current (A) Display voltage (V) Magnetic field
strength(Gs)
1 1 5.11 44.681
2 2 10.23 88.692
3 3 15.35 132.629
4 4 20.47 176.547
5 4.6 23.58 202.884
6 5 25.67 220.528
Table 2 Magnetic field strength data
 
Magnetic field uniformity
No. Measurement area Current Central
magnetic field
Maximum
magnetic field
Minimum
magnetic field
Uniformity
1 Sф50mm 4.6A 202.884Gs 202.487Gs 202.238Gs -0.318%
Coordinates Magnetic Field Strength (Gs)
(0,0,0) 202.884
(25,0,0) 202.451
(-25,0,0) 202.355
(0,25,0) 202.487
(0,-25,0) 202.238
(0,0,25) 202.415
(0,0,-25) 202.462
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
Environment temp Product temperature Measuring resistance ResistanceR@20℃ ResistanceR@85℃
20.0℃ 20.0℃ 5.049Ω 5.049Ω 6.558Ω
Table 4 Resistance R data
 
Inductance Ls, reactance Z measurement (test level 5V)
Ls MIN[H] FREQ[Hz] Ls MAX[H] FREQ[Hz]
 131.378m  1.00000k  131.876m 20
Z  MIN[Ω] FREQ[Hz] Z  MAX[Ω] FREQ[Hz]
17.3227 20 825.584  1.00000k
Table 5 inductance Ls and reactance Z data
 
Inductance Ls, reactance Z-scan measurement
POINTS FREQ[Hz] Ls POINTS FREQ[Hz] Ls
1 20  131.876m 17.3227 102 514.9  131.452m 425.346
2 24.9  131.852m 21.2376 103 519.8  131.452m 429.392
3 29.8  131.831m 25.1971 104 524.7  131.450m 433.434
4 34.7  131.798m 29.1795 105 529.6  131.450m 437.479
5 39.6  131.782m 33.1811 106 534.5  131.449m 441.524
6 44.5  131.807m 37.203 107 539.4  131.447m 445.565
7 49.4  131.792m 41.2228 108 544.3  131.445m 449.606
8 54.3  131.783m 45.2508 109 549.2  131.444m 453.649
9 59.2  131.779m 49.2849 110 554.1  131.444m 457.695
10 64.1  131.759m 53.3138 111 559  131.443m 461.737
11 69  131.744m 57.3474 112 563.9  131.443m 465.785
12 73.9  131.728m 61.3823 113 568.8  131.441m 469.826
13 78.8  131.732m 65.4272 114 573.7  131.440m 473.869
14 83.7  131.720m 69.4657 115 578.6  131.439m 477.913
15 88.6  131.712m 73.5072 116 583.5  131.438m 481.956
16 93.5  131.703m 77.5482 117 588.4  131.437m 486
17 98.4  131.697m 81.5915 118 593.3  131.437m 490.046
18 103.3  131.687m 85.633 119 598.2  131.436m 494.09
19 108.2  131.676m 89.6733 120 603.1  131.435m 498.131
20 113.1  131.673m 93.7193 121 608  131.434m 502.175
21 118  131.666m 97.7623 122 612.9  131.433m 506.218
22 122.9  131.660m 101.807 123 617.8  131.432m 510.262
23 127.8  131.652m 105.85 124 622.7  131.431m 514.303
24 132.7  131.648m 109.895 125 627.6  131.430m 518.348
25 137.6  131.641m 113.939 126 632.5  131.429m 522.39
26 142.5  131.632m 117.98 127 637.4  131.430m 526.439
27 147.4  131.640m 122.036 128 642.3  131.428m 530.477
28 152.3  131.618m 126.066 129 647.2  131.431m 534.536
29 157.2  131.620m 130.117 130 652.1  131.427m 538.568
30 162.1  131.614m 134.16 131 657  131.425m 542.607
31 167  131.612m 138.208 132 661.9  131.424m 546.647
32 171.9  131.608m 142.253 133 666.8  131.423m 550.693
33 176.8  131.603m 146.297 134 671.7  131.423m 554.736
34 181.7  131.598m 150.341 135 676.6  131.422m 558.778
35 186.6  131.594m 154.386 136 681.5  131.421m 562.821
36 191.5  131.591m 158.432 137 686.4  131.419m 566.861
37 196.4  131.589m 162.48 138 691.3  131.419m 570.908
38 201.3  131.584m 166.523 139 696.2  131.418m 574.949
39 206.2  131.580m 170.568 140 701.1  131.417m 578.991
40 211.1  131.578m 174.614 141 706  131.417m 583.035
41 216  131.573m 178.657 142 710.9  131.416m 587.078
42 220.9  131.569m 182.7 143 715.8  131.415m 591.12
43 225.8  131.566m 186.746 144 720.7  131.414m 595.163
44 230.7  131.563m 190.792 145 725.6  131.414m 599.211
45 235.6  131.560m 194.837 146 730.5  131.413m 603.251
46 240.5  131.558m 198.882 147 735.4  131.409m 607.28
47 245.4  131.554m 202.925 148 740.3  131.415m 611.35
48 250.3  131.551m 206.97 149 745.2  131.410m 615.377
49 255.2  131.548m 211.015 150 750.1  131.412m 619.433
50 260.1  131.546m 215.061 151 755  131.408m 623.458
51 265  131.543m 219.105 152 759.9  131.408m 627.504
52 269.9  131.542m 223.151 153 764.8  131.407m 631.549
53 274.8  131.540m 227.198 154 769.7  131.406m 635.59
54 279.7  131.538m 231.244 155 774.6  131.406m 639.633
55 284.6  131.536m 235.288 156 779.5  131.405m 643.676
56 289.5  131.533m 239.333 157 784.4  131.405m 647.722
57 294.4  131.532m 243.38 158 789.3  131.404m 651.761
58 299.3  131.530m 247.425 159 794.2  131.404m 655.806
59 304.2  131.527m 251.468 160 799.1  131.402m 659.844
60 309.1  131.525m 255.513 161 804  131.402m 663.891
61 314  131.523m 259.558 162 808.9  131.402m 667.935
62 318.9  131.520m 263.601 163 813.8  131.401m 671.979
63 323.8  131.518m 267.647 164 818.7  131.400m 676.017
64 328.7  131.517m 271.693 165 823.6  131.399m 680.059
65 333.6  131.515m 275.737 166 828.5  131.399m 684.104
66 338.5  131.516m 279.789 167 833.4  131.398m 688.146
67 343.4  131.511m 283.826 168 838.3  131.396m 692.182
68 348.3  131.509m 287.871 169 843.2  131.397m 696.231
69 353.2  131.508m 291.917 170 848.1  131.393m 700.256
70 358.1  131.507m 295.962 171 853  131.398m 704.329
71 363  131.505m 300.007 172 857.9  131.395m 708.359
72 367.9  131.503m 304.05 173 862.8  131.392m 712.389
73 372.8  131.501m 308.095 174 867.7  131.393m 716.442
74 377.7  131.500m 312.14 175 872.6  131.393m 720.487
75 382.6  131.488m 316.161 176 877.5  131.392m 724.528
76 387.5  131.487m 320.205 177 882.4  131.391m 728.57
77 392.4  131.484m 324.247 178 887.3  131.391m 732.613
78 397.3  131.484m 328.294 179 892.2  131.391m 736.659
79 402.2  131.482m 332.336 180 897.1  131.391m 740.702
80 407.1  131.480m 336.381 181 902  131.390m 744.743
81 412  131.479m 340.426 182 906.9  131.389m 748.782
82 416.9  131.478m 344.47 183 911.8  131.388m 752.827
83 421.8  131.477m 348.515 184 916.7  131.388m 756.87
84 426.7  131.474m 352.556 185 921.6  131.387m 760.911
85 431.6  131.473m 356.602 186 926.5  131.387m 764.956
86 436.5  131.471m 360.643 187 931.4  131.385m 768.992
87 441.4  131.466m 364.675 188 936.3  131.385m 773.035
88 446.3  131.468m 368.729 189 941.2  131.384m 777.079
89 451.2  131.469m 372.78 190 946.1  131.385m 781.125
90 456.1  131.467m 376.822 191 951  131.383m 785.162
91 461  131.463m 380.857 192 955.9  131.383m 789.206
92 465.9  131.466m 384.913 193 960.8  131.382m 793.248
93 470.8  131.464m 388.956 194 965.7  131.383m 797.295
94 475.7  131.462m 392.996 195 970.6  131.381m 801.331
95 480.6  131.461m 397.041 196 975.5  131.381m 805.375
96 485.5  131.458m 401.082 197 980.4  131.380m 809.416
97 490.4  131.459m 405.132 198 985.3  131.380m 813.461
98 495.3  131.457m 409.171 199 990.2  131.379m 817.5
99 500.2  131.456m 413.215 200 995.1  131.379m 821.545
100 505.1  131.454m 417.257 201  1.00000k  131.378m 825.584
101 510  131.454m 421.303        
Table 6 Detailed frequency data of inductance Ls and reactance Z
 
Conclusion
The magnetic field and electrical performance of the product meet the requirements of the corresponding technical parameters. The final performance of the product is subject to this document.