Quality Inspection Report: DXHC8-50 Uni-directional Helmholtz coil

Home  ꄲ  Dexinmag News  ꄲ  Helmholtz Coil  ꄲ  Quality Inspection Report: DXHC8-50 Uni-directional Helmholtz coil

lateral view of DXHC8-50 Uni-directional Helmholtz coil  DXHC8-50 Uni-directional Helmholtz coil coil close-up of DXHC8-50 Uni-directional Helmholtz coil

 

Overall Dimensions: 220mm x 120mm x 220mm
Coil spacing: 65mm
Inside diameter of coil: 152mm
Outside diameter of coil: 197mm
Weight: 3.72kg

 

 

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:
Uni-directional Helmholtz coil		 Product model: DXHC8-50
Test time: May. 5, 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
5.0℃ 5.0℃ 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）
1 1 - 27.827
2 2 - 55.723
Table 2 Magnetic field strength data
 
Magnetic field uniformity
Axis Area Current Max Min Uniformity Note
1 φ40*40mm 1A 27.876Gs 27.708Gs -0.43% 　
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℃
5.0℃ 5.0℃ 10.470Ω 11.246Ω 14.609Ω
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]
 57.1332m 872.6  57.2861m 20
Z  MIN[Ω] FREQ[Hz] Z  MAX[Ω] FREQ[Hz]
12.6898 20 359.159  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  57.2861m 12.6898 102 514.9  57.1416m 185.171
2 24.9  57.2692m 13.766 103 519.8  57.1414m 186.927
3 29.8  57.2452m 14.9711 104 524.7  57.1410m 188.683
4 34.7  57.2259m 16.2772 105 529.6  57.1407m 190.438
5 39.6  57.2069m 17.6607 106 534.5  57.1408m 192.195
6 44.5  57.2028m 19.1094 107 539.4  57.1406m 193.951
7 49.4  57.1935m 20.604 108 544.3  57.1402m 195.706
8 54.3  57.1979m 22.1413 109 549.2  57.1401m 197.463
9 59.2  57.1900m 23.7071 110 554.1  57.1397m 199.218
10 64.1  57.1889m 25.2988 111 559  57.1399m 200.976
11 69  57.1858m 26.9109 112 563.9  57.1396m 202.732
12 73.9  57.1819m 28.5402 113 568.8  57.1395m 204.488
13 78.8  57.1834m 30.1863 114 573.7  57.1392m 206.244
14 83.7  57.1847m 31.8449 115 578.6  57.1387m 207.999
15 88.6  57.1831m 33.5121 116 583.5  57.1388m 209.757
16 93.5  57.1808m 35.1879 117 588.4  57.1387m 211.513
17 98.4  57.1770m 36.8703 118 593.3  57.1385m 213.27
18 103.3  57.1750m 38.5605 119 598.2  57.1381m 215.025
19 108.2  57.1736m 40.2568 120 603.1  57.1382m 216.783
20 113.1  57.1717m 41.958 121 608  57.1383m 218.54
21 118  57.1705m 43.6641 122 612.9  57.1383m 220.298
22 122.9  57.1686m 45.3736 123 617.8  57.1382m 222.055
23 127.8  57.1685m 47.0882 124 622.7  57.1381m 223.812
24 132.7  57.1670m 48.8048 125 627.6  57.1383m 225.57
25 137.6  57.1662m 50.5249 126 632.5  57.1382m 227.326
26 142.5  57.1655m 52.2475 127 637.4  57.1383m 229.084
27 147.4  57.1643m 53.9721 128 642.3  57.1380m 230.84
28 152.3  57.1628m 55.6985 129 647.2  57.1383m 232.599
29 157.2  57.1623m 57.4275 130 652.1  57.1382m 234.356
30 162.1  57.1614m 59.158 131 657  57.1384m 236.114
31 167  57.1607m 60.8902 132 661.9  57.1384m 237.872
32 171.9  57.1611m 62.6249 133 666.8  57.1384m 239.629
33 176.8  57.1603m 64.36 134 671.7  57.1381m 241.386
34 181.7  57.1598m 66.0965 135 676.6  57.1382m 243.144
35 186.6  57.1597m 67.8345 136 681.5  57.1383m 244.902
36 191.5  57.1589m 69.5729 137 686.4  57.1380m 246.658
37 196.4  57.1582m 71.3122 138 691.3  57.1380m 248.416
38 201.3  57.1583m 73.0536 139 696.2  57.1380m 250.173
39 206.2  57.1575m 74.7947 140 701.1  57.1382m 251.932
40 211.1  57.1566m 76.5364 141 706  57.1381m 253.689
41 216  57.1556m 78.2788 142 710.9  57.1383m 255.448
42 220.9  57.1552m 80.0226 143 715.8  57.1382m 257.205
43 225.8  57.1546m 81.7668 144 720.7  57.1381m 258.962
44 230.7  57.1539m 83.5115 145 725.6  57.1384m 260.721
45 235.6  57.1531m 85.2564 146 730.5  57.1383m 262.479
46 240.5  57.1524m 87.0021 147 735.4  57.1383m 264.237
47 245.4  57.1517m 88.7482 148 740.3  57.1381m 265.994
48 250.3  57.1512m 90.4951 149 745.2  57.1383m 267.753
49 255.2  57.1509m 92.2427 150 750.1  57.1384m 269.511
50 260.1  57.1507m 93.9908 151 755  57.1383m 271.268
51 265  57.1501m 95.7385 152 759.9  57.1382m 273.026
52 269.9  57.1499m 97.4874 153 764.8  57.1383m 274.784
53 274.8  57.1485m 99.2346 154 769.7  57.1384m 276.542
54 279.7  57.1484m 100.984 155 774.6  57.1384m 278.3
55 284.6  57.1482m 102.734 156 779.5  57.1384m 280.059
56 289.5  57.1480m 104.484 157 784.4  57.1381m 281.815
57 294.4  57.1475m 106.234 158 789.3  57.1382m 283.574
58 299.3  57.1474m 107.985 159 794.2  57.1383m 285.332
59 304.2  57.1473m 109.736 160 799.1  57.1384m 287.091
60 309.1  57.1473m 111.488 161 804  57.1384m 288.849
61 314  57.1469m 113.239 162 808.9  57.1384m 290.607
62 318.9  57.1467m 114.99 163 813.8  57.1382m 292.364
63 323.8  57.1460m 116.741 164 818.7  57.1381m 294.122
64 328.7  57.1461m 118.494 165 823.6  57.1383m 295.881
65 333.6  57.1458m 120.246 166 828.5  57.1380m 297.637
66 338.5  57.1458m 121.999 167 833.4  57.1382m 299.396
67 343.4  57.1453m 123.751 168 838.3  57.1376m 301.151
68 348.3  57.1451m 125.503 169 843.2  57.1377m 302.91
69 353.2  57.1447m 127.256 170 848.1  57.1378m 304.668
70 358.1  57.1446m 129.009 171 853  57.1377m 306.426
71 363  57.1444m 130.763 172 857.9  57.1378m 308.185
72 367.9  57.1446m 132.517 173 862.8  57.1379m 309.944
73 372.8  57.1443m 134.27 174 867.7  57.1378m 311.701
74 377.7  57.1440m 136.024 175 872.6  57.1332m 313.435
75 382.6  57.1441m 137.778 176 877.5  57.1335m 315.194
76 387.5  57.1438m 139.532 177 882.4  57.1335m 316.953
77 392.4  57.1437m 141.286 178 887.3  57.1335m 318.711
78 397.3  57.1434m 143.04 179 892.2  57.1336m 320.469
79 402.2  57.1435m 144.795 180 897.1  57.1338m 322.228
80 407.1  57.1434m 146.549 181 902  57.1337m 323.986
81 412  57.1430m 148.303 182 906.9  57.1341m 325.746
82 416.9  57.1430m 150.058 183 911.8  57.1339m 327.503
83 421.8  57.1429m 151.813 184 916.7  57.1339m 329.262
84 426.7  57.1430m 153.569 185 921.6  57.1340m 331.021
85 431.6  57.1428m 155.323 186 926.5  57.1340m 332.779
86 436.5  57.1427m 157.078 187 931.4  57.1342m 334.538
87 441.4  57.1425m 158.833 188 936.3  57.1344m 336.297
88 446.3  57.1422m 160.588 189 941.2  57.1346m 338.057
89 451.2  57.1424m 162.344 190 946.1  57.1347m 339.816
90 456.1  57.1425m 164.1 191 951  57.1347m 341.574
91 461  57.1424m 165.856 192 955.9  57.1347m 343.332
92 465.9  57.1420m 167.61 193 960.8  57.1340m 345.086
93 470.8  57.1419m 169.366 194 965.7  57.1339m 346.844
94 475.7  57.1418m 171.122 195 970.6  57.1342m 348.604
95 480.6  57.1418m 172.878 196 975.5  57.1343m 350.363
96 485.5  57.1420m 174.635 197 980.4  57.1346m 352.123
97 490.4  57.1418m 176.39 198 985.3  57.1345m 353.881
98 495.3  57.1417m 178.146 199 990.2  57.1347m 355.64
99 500.2  57.1421m 179.904 200 995.1  57.1349m 357.4
100 505.1  57.1419m 181.66 201  1.00000k  57.1349m 359.159
101 510  57.1415m 183.415 　 　 　 　
Table 6 X-axis 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.

 

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

Dexinmag® • 2024

Get A Quote!