DXHC25-50 1D Helmholtz Coil: Quality Inspection Report

Home  ꄲ  Dexinmag News  ꄲ  Helmholtz Coil  ꄲ  DXHC25-50 1D Helmholtz Coil: Quality Inspection Report

DXHC25-50 1D Helmholtz Coil p1 DXHC25-50 1D Helmholtz Coil p2 DXHC25-50 1D Helmholtz Coil p3 DXHC25-50 1D Helmholtz Coil p4

 

Overall Dimensions: 345mm(L) x550mm(W) x 590mm(H)

Weight: 37.5kg

 

 

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:
1D Helmholtz coil 		 Product model: DXHC25-50
Test time: 20261015-455
    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
15.0℃ 15.0℃ - 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 2 4.28 11.07
2 4 8.56 22.13
3 6 12.84 33.176
4 8 17.13 44.223
5 10 21.42 55.255
AC Display current（Ap） Display voltage（Vp） Magnetic field
strength（Gs）
10Hz 10 44.15 -
Table 2 Magnetic field strength data
 
Magnetic field uniformity
No. Measurement area Current Central(Gs)
magnetic field		 Maximum(Gs) 
magnetic field		 Minimum(Gs) 
magnetic field		 Uniformity
1 SΦ125mm 10A 55.255 55.255 54.839 -0.7529%
Coordinates Magnetic Field Strength (Gs)
(0,0,0) 55.255
(62.5,0,0) 55.172
(-62.5,0,0) 55.103
(0,62.5,0) 54.839
(0,-62.5,0) 54.93
(0,0,62.5) 55.01
(0,0,-62.5) 55.005
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℃
15.0℃ 15.0℃ 2.121Ω 2.171Ω 2.820Ω
Table 4 Resistance R data

 

Inductance Ls, reactance Z measurement (test level 5V)
Ls MIN[H] FREQ[Hz] Ls MAX[H] FREQ[Hz]
 49.8470m  1.00000k  50.6080m 20
Z  MIN[Ω] FREQ[Hz] Z  MAX[Ω] FREQ[Hz]
6.70697 20 313.246  1.00000k
Table 5 inductance Ls and reactance Z data
　
Inductance Ls, reactance Z-scan measurement
POINTS FREQ[Hz] Ls Z  POINTS FREQ[Hz] Ls Z 
1 20  50.6080m 6.70697 102 514.9  49.9325m 161.578
2 24.9  50.4897m 8.18242 103 519.8  49.9386m 163.135
3 29.8  50.4240m 9.68206 104 524.7  49.9288m 164.64
4 34.7  50.3441m 11.1881 105 529.6  49.9330m 166.192
5 39.6  50.5466m 12.7633 106 534.5  49.9296m 167.718
6 44.5  50.3919m 14.2568 107 539.4  49.9275m 169.247
7 49.4  50.2478m 15.7501 108 544.3  49.9331m 170.804
8 54.3  50.3394m 17.3172 109 549.2  49.9279m 172.323
9 59.2  50.3091m 18.8458 110 554.1  49.9331m 173.879
10 64.1  50.2436m 20.3591 111 559  49.9281m 175.398
11 69  50.2408m 21.8963 112 563.9  49.9214m 176.911
12 73.9  50.2536m 23.4407 113 568.8  49.9241m 178.458
13 78.8  50.2687m 24.9907 114 573.7  49.9224m 179.988
14 83.7  50.2797m 26.5398 115 578.6  49.9170m 181.506
15 88.6  50.2000m 28.0375 116 583.5  49.9110m 183.022
16 93.5  50.1791m 29.5683 117 588.4  49.9184m 184.585
17 98.4  50.1823m 31.1109 118 593.3  49.9036m 186.068
18 103.3  50.2622m 32.705 119 598.2  49.9113m 187.632
19 108.2  50.2017m 34.2094 120 603.1  49.9153m 189.185
20 113.1  50.1648m 35.7254 121 608  49.9087m 190.696
21 118  50.1892m 37.2879 122 612.9  49.9070m 192.226
22 122.9  50.1401m 38.7916 123 617.8  49.9136m 193.788
23 127.8  50.1824m 40.3642 124 622.7  49.9110m 195.316
24 132.7  50.1547m 41.8855 125 627.6  49.9076m 196.838
25 137.6  50.1382m 43.4125 126 632.5  49.9090m 198.381
26 142.5  50.1927m 45.0035 127 637.4  49.9053m 199.903
27 147.4  50.1411m 46.5022 128 642.3  49.9047m 201.437
28 152.3  50.1899m 48.087 129 647.2  49.9071m 202.983
29 157.2  50.1472m 49.5893 130 652.1  49.9040m 204.507
30 162.1  50.1125m 51.0972 131 657  49.9018m 206.034
31 167  50.1016m 52.6277 132 661.9  49.9068m 207.592
32 171.9  50.0909m 54.1586 133 666.8  49.8998m 209.099
33 176.8  50.0771m 55.6819 134 671.7  49.9040m 210.652
34 181.7  50.0802m 57.2265 135 676.6  49.8999m 212.172
35 186.6  50.1085m 58.8031 136 681.5  49.8983m 213.702
36 191.5  50.0601m 60.2871 137 686.4  49.9011m 215.25
37 196.4  50.0879m 61.8587 138 691.3  49.9002m 216.783
38 201.3  50.0714m 63.381 139 696.2  49.8916m 218.281
39 206.2  50.0908m 64.9457 140 701.1  49.9021m 219.863
40 211.1  50.0816m 66.4773 141 706  49.8957m 221.372
41 216  50.0670m 67.9976 142 710.9  49.8981m 222.92
42 220.9  50.0705m 69.5428 143 715.8  49.8940m 224.437
43 225.8  50.0462m 71.0505 144 720.7  49.8900m 225.955
44 230.7  50.0194m 72.5507 145 725.6  49.8944m 227.511
45 235.6  50.0308m 74.1081 146 730.5  49.8931m 229.041
46 240.5  50.0525m 75.6798 147 735.4  49.8940m 230.582
47 245.4  50.0468m 77.2117 148 740.3  49.8921m 232.109
48 250.3  50.0401m 78.7413 149 745.2  49.8889m 233.631
49 255.2  50.0315m 80.2673 150 750.1  49.8910m 235.177
50 260.1  50.0449m 81.8296 151 755  49.8910m 236.712
51 265  50.0409m 83.3633 152 759.9  49.8810m 238.201
52 269.9  50.0255m 84.8773 153 764.8  49.8797m 239.731
53 274.8  50.0289m 86.4232 154 769.7  49.8824m 241.28
54 279.7  50.0167m 87.9416 155 774.6  49.8812m 242.81
55 284.6  50.0267m 89.4985 156 779.5  49.8854m 244.367
56 289.5  50.0235m 91.0328 157 784.4  49.8864m 245.906
57 294.4  50.0094m 92.5461 158 789.3  49.8820m 247.422
58 299.3  49.9989m 94.0663 159 794.2  49.8797m 248.946
59 304.2  50.0214m 95.6484 160 799.1  49.8788m 250.478
60 309.1  49.9867m 97.121 161 804  49.8815m 252.026
61 314  49.9972m 98.6805 162 808.9  49.8798m 253.553
62 318.9  49.9931m 100.21 163 813.8  49.8747m 255.063
63 323.8  49.9905m 101.744 164 818.7  49.8784m 256.618
64 328.7  49.9957m 103.294 165 823.6  49.8780m 258.152
65 333.6  49.9883m 104.818 166 828.5  49.8752m 259.672
66 338.5  49.9956m 106.372 167 833.4  49.8693m 261.177
67 343.4  49.9912m 107.902 168 838.3  49.8712m 262.723
68 348.3  49.9840m 109.425 169 843.2  49.8736m 264.271
69 353.2  49.9875m 110.971 170 848.1  49.8715m 265.796
70 358.1  50.0003m 112.539 171 853  49.8750m 267.351
71 363  49.9949m 114.066 172 857.9  49.8701m 268.86
72 367.9  49.9839m 115.58 173 862.8  49.8675m 270.381
73 372.8  49.9719m 117.09 174 867.7  49.8718m 271.94
74 377.7  49.9765m 118.64 175 872.6  49.8672m 273.451
75 382.6  49.9746m 120.173 176 877.5  49.8712m 275.008
76 387.5  49.9766m 121.716 177 882.4  49.8667m 276.52
77 392.4  49.9863m 123.279 178 887.3  49.8660m 278.05
78 397.3  49.9539m 124.738 179 892.2  49.8618m 279.562
79 402.2  49.9636m 126.299 180 897.1  49.8661m 281.122
80 407.1  49.9769m 127.871 181 902  49.8648m 282.649
81 412  49.9632m 129.374 182 906.9  49.8637m 284.179
82 416.9  49.9676m 130.924 183 911.8  49.8654m 285.724
83 421.8  49.9529m 132.424 184 916.7  49.8627m 287.244
84 426.7  49.9570m 133.972 185 921.6  49.8640m 288.787
85 431.6  49.9553m 135.505 186 926.5  49.8598m 290.298
86 436.5  49.9544m 137.041 187 931.4  49.8562m 291.812
87 441.4  49.9442m 138.551 188 936.3  49.8645m 293.397
88 446.3  49.9555m 140.12 189 941.2  49.8582m 294.893
89 451.2  49.9615m 141.675 190 946.1  49.8614m 296.449
90 456.1  49.9700m 143.238 191 951  49.8536m 297.936
91 461  49.9533m 144.728 192 955.9  49.8583m 299.501
92 465.9  49.9520m 146.261 193 960.8  49.8561m 301.022
93 470.8  49.9412m 147.768 194 965.7  49.8556m 302.555
94 475.7  49.9361m 149.29 195 970.6  49.8538m 304.079
95 480.6  49.9485m 150.865 196 975.5  49.8552m 305.622
96 485.5  49.9456m 152.394 197 980.4  49.8527m 307.142
97 490.4  49.9384m 153.91 198 985.3  49.8523m 308.674
98 495.3  49.9502m 155.484 199 990.2  49.8538m 310.218
99 500.2  49.9300m 156.958 200 995.1  49.8527m 311.746
100 505.1  49.9377m 158.52 201  1.00000k  49.8470m 313.246
101 510  49.9397m 160.063 　 　 　 　
Table 6 Detailed frequency data of inductance Ls and reactance Z

 

Temperature Rise Test
 Test Methods
The following measurement methods are employed for this product:
Magnetic field temperature rise measurement: Determines the maximum operating time and peak temperature at the target magnetic field current required for user operation.
Maximum current temperature rise measurement: Determines the maximum operating time and peak temperature at the maximum safe current the product can withstand.
Data regarding temperature, time, and current for the coil assembly is measured. The results are presented in the table below.
Temperature Rise Test
Test Current [A] Duration [min] Product temperature [°C]
10 0 21.1
10 34.3
20 43.6
30 51.4
40 57.6
50 63.5
60 68.4
70 72.2
80 76
90 78.9
Note 　
Table 7: Data on the relationship between temperature, operating time, and current
 
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.

 

Customization is available, please let us know your requirements, and we will design a professional plan for you. Thank you!

Dexinmag® • 2026

Get A Quote!
녕