DXHC10-30 One-dimensional DC Helmholtz Coil: Quality Inspection Report

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DXHC10-30 One-dimensional DC Helmholtz Coil 1 DXHC10-30 One-dimensional DC Helmholtz Coil 2 DXHC10-30 One-dimensional DC Helmholtz Coil 3

 

Overall Dimensions: 260mm x 185mm x 256mm
Coil spacing: 54mm
Inside diameter of coil: 148mm
Outside diameter of coil: 244mm
Weight: 11.29kg

 

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:
One-dimensional DC Helmholtz Coil		 Product model: DXHC10-30
Test time: Nov. 10, 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
18.0℃ 18.0℃ 3m 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 Voltage (V) Magnetic field
strength（Gs）
0，0，0 1 - 51.289
0，0，0 2 31.83 102.729
Table 2 Magnetic field strength data
 
Magnetic field uniformity
No. Area Current Max Min Uniformity Note
1 Sφ50mm 2A 102.518Gs 102.357Gs -0.36% 　
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℃
18.0℃ 18.0℃ 15.720Ω 15.866Ω 20.610Ω
Table 4 Resistance R data
　
Inductance Ls, reactance Z measurement (test level 5V)
Ls MIN[H] FREQ[Hz] Ls MAX[H] FREQ[Hz]
 37.2005m  1.00000k  104.968m 20
Z  MIN[Ω] FREQ[Hz] Z  MAX[Ω] FREQ[Hz]
28.9889 20 245.268  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  104.968m 28.9889 102 514.9  40.8858m 142.904
2 24.9  90.0993m 30.6157 103 519.8  40.8290m 143.986
3 29.8  80.1262m 31.8879 104 524.7  40.7724m 145.066
4 34.7  73.2241m 32.9677 105 529.6  40.7168m 146.146
5 39.6  68.2938m 33.9519 106 534.5  40.6616m 147.224
6 44.5  64.6637m 34.89 107 539.4  40.6071m 148.301
7 49.4  61.9130m 35.8136 108 544.3  40.5542m 149.378
8 54.3  59.7643m 36.7296 109 549.2  40.5006m 150.451
9 59.2  58.0498m 37.6552 110 554.1  40.4476m 151.524
10 64.1  56.6542m 38.5969 111 559  40.3950m 152.595
11 69  55.5002m 39.5549 112 563.9  40.3429m 153.663
12 73.9  54.5323m 40.531 113 568.8  40.2913m 154.731
13 78.8  53.7079m 41.5245 114 573.7  40.2403m 155.797
14 83.7  52.9971m 42.5349 115 578.6  40.1898m 156.862
15 88.6  52.3779m 43.562 116 583.5  40.1397m 157.926
16 93.5  51.8313m 44.6052 117 588.4  40.0902m 158.989
17 98.4  51.3401m 45.6615 118 593.3  40.0414m 160.051
18 103.3  50.9032m 46.7349 119 598.2  39.9925m 161.11
19 108.2  50.5087m 47.8219 120 603.1  39.9446m 162.169
20 113.1  50.1494m 48.9208 121 608  39.8969m 163.227
21 118  49.8203m 50.0313 122 612.9  39.8499m 164.284
22 122.9  49.5171m 51.1522 123 617.8  39.8032m 165.34
23 127.8  49.2356m 52.2824 124 622.7  39.7571m 166.395
24 132.7  48.9728m 53.4203 125 627.6  39.7113m 167.449
25 137.6  48.7267m 54.566 126 632.5  39.6660m 168.501
26 142.5  48.4951m 55.7186 127 637.4  39.6211m 169.552
27 147.4  48.2756m 56.8765 128 642.3  39.5768m 170.603
28 152.3  48.0682m 58.0403 129 647.2  39.5327m 171.653
29 157.2  47.8705m 59.2086 130 652.1  39.4890m 172.7
30 162.1  47.6816m 60.3807 131 657  39.4457m 173.747
31 167  47.5010m 61.5568 132 661.9  39.4031m 174.794
32 171.9  47.3259m 62.7359 133 666.8  39.3607m 175.839
33 176.8  47.1592m 63.918 134 671.7  39.3188m 176.884
34 181.7  46.9983m 65.102 135 676.6  39.2770m 177.927
35 186.6  46.8428m 66.2874 136 681.5  39.2359m 178.97
36 191.5  46.6924m 67.4744 137 686.4  39.1950m 180.011
37 196.4  46.5463m 68.6623 138 691.3  39.1545m 181.051
38 201.3  46.4042m 69.851 139 696.2  39.1144m 182.091
39 206.2  46.2657m 71.0397 140 701.1  39.0747m 183.13
40 211.1  46.1309m 72.2289 141 706  39.0352m 184.167
41 216  45.9992m 73.4179 142 710.9  38.9963m 185.204
42 220.9  45.8707m 74.6066 143 715.8  38.9578m 186.241
43 225.8  45.7449m 75.7949 144 720.7  38.9195m 187.277
44 230.7  45.6221m 76.9826 145 725.6  38.8815m 188.311
45 235.6  45.5019m 78.1697 146 730.5  38.8439m 189.345
46 240.5  45.3838m 79.3555 147 735.4  38.8067m 190.378
47 245.4  45.2683m 80.5406 148 740.3  38.7698m 191.411
48 250.3  45.1548m 81.7245 149 745.2  38.7332m 192.442
49 255.2  45.0437m 82.9071 150 750.1  38.6968m 193.472
50 260.1  44.9344m 84.0881 151 755  38.6611m 194.504
51 265  44.8272m 85.2679 152 759.9  38.6254m 195.533
52 269.9  44.7216m 86.4459 153 764.8  38.5901m 196.561
53 274.8  44.6179m 87.6227 154 769.7  38.5551m 197.589
54 279.7  44.5158m 88.7976 155 774.6  38.5203m 198.616
55 284.6  44.4152m 89.9709 156 779.5  38.4858m 199.642
56 289.5  44.3163m 91.1423 157 784.4  38.4519m 200.669
57 294.4  44.2188m 92.3122 158 789.3  38.4183m 201.695
58 299.3  44.1226m 93.4798 159 794.2  38.3847m 202.719
59 304.2  44.0292m 94.6474 160 799.1  38.3516m 203.744
60 309.1  43.9359m 95.8114 161 804  38.3188m 204.768
61 314  43.8441m 96.9735 162 808.9  38.2860m 205.789
62 318.9  43.7535m 98.1337 163 813.8  38.2536m 206.812
63 323.8  43.6635m 99.2909 164 818.7  38.2213m 207.832
64 328.7  43.5750m 100.446 165 823.6  38.1896m 208.854
65 333.6  43.4881m 101.601 166 828.5  38.1581m 209.874
66 338.5  43.4020m 102.752 167 833.4  38.1269m 210.894
67 343.4  43.3173m 103.902 168 838.3  38.0959m 211.913
68 348.3  43.2335m 105.05 169 843.2  38.0652m 212.932
69 353.2  43.1506m 106.196 170 848.1  38.0346m 213.95
70 358.1  43.0690m 107.34 171 853  38.0045m 214.968
71 363  42.9883m 108.482 172 857.9  37.9745m 215.985
72 367.9  42.9085m 109.621 173 862.8  37.9448m 217.002
73 372.8  42.8296m 110.758 174 867.7  37.9153m 218.018
74 377.7  42.7517m 111.894 175 872.6  37.8859m 219.032
75 382.6  42.6745m 113.027 176 877.5  37.8570m 220.048
76 387.5  42.5985m 114.159 177 882.4  37.8282m 221.062
77 392.4  42.5233m 115.288 178 887.3  37.7996m 222.076
78 397.3  42.4489m 116.415 179 892.2  37.7715m 223.09
79 402.2  42.3753m 117.54 180 897.1  37.7433m 224.103
80 407.1  42.3026m 118.664 181 902  37.7155m 225.116
81 412  42.2306m 119.785 182 906.9  37.6879m 226.128
82 416.9  42.1593m 120.904 183 911.8  37.6605m 227.139
83 421.8  42.0888m 122.021 184 916.7  37.6333m 228.15
84 426.7  42.0192m 123.136 185 921.6  37.6063m 229.161
85 431.6  41.9506m 124.25 186 926.5  37.5795m 230.172
86 436.5  41.8825m 125.361 187 931.4  37.5528m 231.18
87 441.4  41.8151m 126.471 188 936.3  37.5265m 232.19
88 446.3  41.7483m 127.579 189 941.2  37.5004m 233.199
89 451.2  41.6824m 128.684 190 946.1  37.4745m 234.208
90 456.1  41.6173m 129.789 191 951  37.4486m 235.216
91 461  41.5528m 130.892 192 955.9  37.4232m 236.224
92 465.9  41.4888m 131.992 193 960.8  37.3970m 237.226
93 470.8  41.4256m 133.09 194 965.7  37.3718m 238.232
94 475.7  41.3632m 134.188 195 970.6  37.3468m 239.239
95 480.6  41.3013m 135.283 196 975.5  37.3219m 240.244
96 485.5  41.2401m 136.377 197 980.4  37.2976m 241.252
97 490.4  41.1795m 137.468 198 985.3  37.2730m 242.256
98 495.3  41.1197m 138.559 199 990.2  37.2487m 243.261
99 500.2  41.0605m 139.648 200 995.1  37.2247m 244.266
100 505.1  41.0017m 140.735 201  1.00000k  37.2005m 245.268
101 510  40.9435m 141.82 　 　 　 　
Table 6 Detailed frequency data of inductance Ls and reactance Z
               
    3. Temperature test
This product uses the following measurement methods:
a. Using magnetic field temperature rise measurement: given the limited working time and maximum temperature under the target magnetic field current required by the user.
b. Maximum current temperature rise measurement: Measure the ultimate working time and maximum temperature under the maximum safe current that the product can withstand
c. Measure the data on temperature, time and current of the entire coil. The measurement results are shown in the table below.
Temperature rise test
Current[A] Working time[min] Initial Temp[℃] End Temp[℃]
2 30 18 ＜85
The initial voltage is 31.62V, and the voltage is 33.85V
Table 7 Relationship data between temperature, working 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® • 2025

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