Quality Inspection Report: DXWD-50 Water-cooled Electromagnet with Modulated Coil
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Quality Inspection Report: DXWD-50 Water-cooled Electromagnet with Modulated Coil
Overall Dimensions: 408mm(L) x 197mm(W) x 212mm(H)
Coil spacing: 80mm
Pole diameter: 50mm
Pole face diameter: 50mm
Air gap range: 30 - 80 mm
Weight: 44kg
Packing list
| Name | Quantity |
| Water-cooled electromagnet | 1 unit |
| Power supply connection cable | 2 strips |
| Probe holder | 1 piece |
| Transparent water pipe | 2 strips |
| Certificate of conformity | 1 copy |
| Test report | 1 copy |
| Packaging | Wooden box |
| Packaging filling: | Foam board |
| 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. |
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| 2. Basic information | |||||||
| Product Name: Water-cooled Electromagnet |
Product model: | DXWD-50 | |||||
| Test time: | July. 25, 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 | ||||
| 27.0℃ | 27.0℃ | 4m | 0~30000nT | ||||
| Table 1 Measurement environment data | |||||||
| Magnetic field parameter test | |||||||
| 1. Using the device | |||||||
| DX-180 Gauss Meter DX-F2031 Power Suuply DXACP Power Amplifier |
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| 2. Magnetic field measurement | |||||||
| This product uses the following measurement methods: Fixed-point measurement: measure the magnetic field at the target point |
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| Magnetic field strength | |||||||
| Air Gap | Display current (A) | Display voltage Voltage (V) | Magnetic field strength（mT） |
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| 30mmGap | 1 | - | 172.66 | ||||
| 30mmGap | 2 | - | 343.58 | ||||
| 30mmGap | 3 | 87 | 497.74 | ||||
| Measuring position | Display current (A) | Display voltage Voltage (V) | Magnetic field strength（mT） |
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| The distance between the poles is 80mm | 5/27Hz | 6 | 2.08 | ||||
| The distance between the poles is 30mm | 5/27Hz | 6 | 3.27 | ||||
| Table 2 Magnetic field strength data | |||||||
| Electrical parameter test | |||||||
| 1. Using equipment | |||||||
| Digital multimeter Impedance analyzer |
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| 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 | |||||||
| No. | Product temperature | Measuring resistance | ResistanceR@20℃ | ResistanceR@85℃ | |||
| Electromagnet | 27.0℃ | 28.920Ω | 28.018Ω | 36.395Ω | |||
| Coil | 27.0℃ | 1.030Ω | 0.998Ω | 1.296Ω | |||
| Table 3 Resistance R data | |||||||
| Coil Inductance Ls, reactance Z measurement (test level 5V, The distance between the poles is 80mm) | |||||||
| Ls MIN[H] | FREQ[Hz] | Ls MAX[H] | FREQ[Hz] | ||||
| 342.734u | 1.00000k | 526.171u | 20 | ||||
| Z MIN[Ω] | FREQ[Hz] | Z MAX[Ω] | FREQ[Hz] | ||||
| 1.06683 | 20 | 2.47953 | 1.00000k | ||||
| Table 4 Coil inductance Ls and reactance Z data | |||||||
| Inductance Ls, reactance Z-scan measurement | |||||||
| POINTS | FREQ[Hz] | Ls | Z | POINTS | FREQ[Hz] | Ls | Z |
| 1 | 20 | 526.171u | 1.06683 | 102 | 514.9 | 356.128u | 1.64423 |
| 2 | 24.9 | 501.964u | 1.07118 | 103 | 519.8 | 355.926u | 1.65201 |
| 3 | 29.8 | 482.541u | 1.07499 | 104 | 524.7 | 355.729u | 1.65981 |
| 4 | 34.7 | 466.904u | 1.07847 | 105 | 529.6 | 355.541u | 1.66763 |
| 5 | 39.6 | 454.615u | 1.08171 | 106 | 534.5 | 355.351u | 1.67546 |
| 6 | 44.5 | 444.778u | 1.08481 | 107 | 539.4 | 355.157u | 1.68329 |
| 7 | 49.4 | 435.964u | 1.08758 | 108 | 544.3 | 355.040u | 1.69117 |
| 8 | 54.3 | 431.060u | 1.09069 | 109 | 549.2 | 354.830u | 1.69901 |
| 9 | 59.2 | 426.380u | 1.09366 | 110 | 554.1 | 354.619u | 1.70687 |
| 10 | 64.1 | 421.734u | 1.09669 | 111 | 559 | 354.415u | 1.71474 |
| 11 | 69 | 417.603u | 1.09977 | 112 | 563.9 | 354.213u | 1.72263 |
| 12 | 73.9 | 413.996u | 1.10291 | 113 | 568.8 | 354.015u | 1.73055 |
| 13 | 78.8 | 410.810u | 1.10612 | 114 | 573.7 | 353.819u | 1.73848 |
| 14 | 83.7 | 407.818u | 1.10926 | 115 | 578.6 | 353.624u | 1.74642 |
| 15 | 88.6 | 405.299u | 1.11258 | 116 | 583.5 | 353.428u | 1.75437 |
| 16 | 93.5 | 403.366u | 1.116 | 117 | 588.4 | 353.235u | 1.76234 |
| 17 | 98.4 | 402.311u | 1.11951 | 118 | 593.3 | 353.049u | 1.77034 |
| 18 | 103.3 | 400.568u | 1.12312 | 119 | 598.2 | 352.862u | 1.77835 |
| 19 | 108.2 | 398.905u | 1.12685 | 120 | 603.1 | 352.679u | 1.7864 |
| 20 | 113.1 | 397.351u | 1.13069 | 121 | 608 | 352.499u | 1.79446 |
| 21 | 118 | 395.909u | 1.13463 | 122 | 612.9 | 352.308u | 1.80249 |
| 22 | 122.9 | 394.634u | 1.13857 | 123 | 617.8 | 352.132u | 1.81059 |
| 23 | 127.8 | 393.398u | 1.1425 | 124 | 622.7 | 351.952u | 1.81869 |
| 24 | 132.7 | 392.182u | 1.14651 | 125 | 627.6 | 351.774u | 1.82679 |
| 25 | 137.6 | 390.911u | 1.15065 | 126 | 632.5 | 351.601u | 1.83493 |
| 26 | 142.5 | 389.723u | 1.15488 | 127 | 637.4 | 351.428u | 1.84308 |
| 27 | 147.4 | 388.671u | 1.15924 | 128 | 642.3 | 351.256u | 1.85123 |
| 28 | 152.3 | 387.740u | 1.16375 | 129 | 647.2 | 351.093u | 1.85942 |
| 29 | 157.2 | 386.951u | 1.16846 | 130 | 652.1 | 350.924u | 1.8676 |
| 30 | 162.1 | 386.247u | 1.17327 | 131 | 657 | 350.757u | 1.87579 |
| 31 | 167 | 385.593u | 1.17813 | 132 | 661.9 | 350.598u | 1.88402 |
| 32 | 171.9 | 384.911u | 1.18298 | 133 | 666.8 | 350.436u | 1.89224 |
| 33 | 176.8 | 384.124u | 1.18795 | 134 | 671.7 | 350.283u | 1.9005 |
| 34 | 181.7 | 383.366u | 1.19299 | 135 | 676.6 | 350.123u | 1.90875 |
| 35 | 186.6 | 382.621u | 1.1981 | 136 | 681.5 | 349.964u | 1.91701 |
| 36 | 191.5 | 381.912u | 1.20323 | 137 | 686.4 | 349.809u | 1.9253 |
| 37 | 196.4 | 381.230u | 1.20846 | 138 | 691.3 | 349.663u | 1.93361 |
| 38 | 201.3 | 380.570u | 1.21375 | 139 | 696.2 | 349.508u | 1.94191 |
| 39 | 206.2 | 379.960u | 1.21909 | 140 | 701.1 | 349.362u | 1.95025 |
| 40 | 211.1 | 379.346u | 1.2245 | 141 | 706 | 349.218u | 1.9586 |
| 41 | 216 | 378.763u | 1.22997 | 142 | 710.9 | 349.068u | 1.96695 |
| 42 | 220.9 | 378.172u | 1.23547 | 143 | 715.8 | 348.928u | 1.97532 |
| 43 | 225.8 | 377.538u | 1.24096 | 144 | 720.7 | 348.787u | 1.98372 |
| 44 | 230.7 | 376.869u | 1.24651 | 145 | 725.6 | 348.641u | 1.9921 |
| 45 | 235.6 | 376.236u | 1.25215 | 146 | 730.5 | 348.505u | 2.00052 |
| 46 | 240.5 | 375.584u | 1.25782 | 147 | 735.4 | 348.366u | 2.00894 |
| 47 | 245.4 | 374.987u | 1.26358 | 148 | 740.3 | 348.234u | 2.0174 |
| 48 | 250.3 | 374.437u | 1.26941 | 149 | 745.2 | 348.095u | 2.02582 |
| 49 | 255.2 | 373.885u | 1.27532 | 150 | 750.1 | 347.959u | 2.03427 |
| 50 | 260.1 | 373.371u | 1.28129 | 151 | 755 | 347.828u | 2.04275 |
| 51 | 265 | 372.899u | 1.28737 | 152 | 759.9 | 347.698u | 2.05124 |
| 52 | 269.9 | 372.465u | 1.29356 | 153 | 764.8 | 347.572u | 2.05976 |
| 53 | 274.8 | 372.085u | 1.29979 | 154 | 769.7 | 347.437u | 2.06825 |
| 54 | 279.7 | 371.714u | 1.30605 | 155 | 774.6 | 347.294u | 2.07671 |
| 55 | 284.6 | 371.349u | 1.31237 | 156 | 779.5 | 347.153u | 2.08518 |
| 56 | 289.5 | 370.994u | 1.31871 | 157 | 784.4 | 347.007u | 2.09363 |
| 57 | 294.4 | 370.608u | 1.32506 | 158 | 789.3 | 346.867u | 2.10212 |
| 58 | 299.3 | 370.158u | 1.33141 | 159 | 794.2 | 346.731u | 2.11064 |
| 59 | 304.2 | 369.742u | 1.33772 | 160 | 799.1 | 346.593u | 2.11914 |
| 60 | 309.1 | 369.309u | 1.34415 | 161 | 804 | 346.443u | 2.12759 |
| 61 | 314 | 368.904u | 1.35064 | 162 | 808.9 | 346.315u | 2.13614 |
| 62 | 318.9 | 368.486u | 1.35714 | 163 | 813.8 | 346.187u | 2.1447 |
| 63 | 323.8 | 368.093u | 1.36369 | 164 | 818.7 | 346.064u | 2.15328 |
| 64 | 328.7 | 367.689u | 1.37027 | 165 | 823.6 | 345.947u | 2.16191 |
| 65 | 333.6 | 367.300u | 1.37692 | 166 | 828.5 | 345.808u | 2.17043 |
| 66 | 338.5 | 366.922u | 1.38362 | 167 | 833.4 | 345.696u | 2.17908 |
| 67 | 343.4 | 366.548u | 1.39034 | 168 | 838.3 | 345.589u | 2.18776 |
| 68 | 348.3 | 366.182u | 1.3971 | 169 | 843.2 | 345.465u | 2.19637 |
| 69 | 353.2 | 365.807u | 1.40387 | 170 | 848.1 | 345.364u | 2.20509 |
| 70 | 358.1 | 365.446u | 1.41067 | 171 | 853 | 345.261u | 2.2138 |
| 71 | 363 | 365.098u | 1.41751 | 172 | 857.9 | 345.146u | 2.22247 |
| 72 | 367.9 | 364.746u | 1.42439 | 173 | 862.8 | 345.053u | 2.23125 |
| 73 | 372.8 | 364.397u | 1.43129 | 174 | 867.7 | 344.942u | 2.23996 |
| 74 | 377.7 | 364.063u | 1.43823 | 175 | 872.6 | 344.857u | 2.24876 |
| 75 | 382.6 | 363.728u | 1.4452 | 176 | 877.5 | 344.757u | 2.25751 |
| 76 | 387.5 | 363.392u | 1.45218 | 177 | 882.4 | 344.678u | 2.26635 |
| 77 | 392.4 | 363.073u | 1.45924 | 178 | 887.3 | 344.577u | 2.2751 |
| 78 | 397.3 | 362.749u | 1.46631 | 179 | 892.2 | 344.506u | 2.28401 |
| 79 | 402.2 | 362.429u | 1.47339 | 180 | 897.1 | 344.412u | 2.29279 |
| 80 | 407.1 | 362.124u | 1.48053 | 181 | 902 | 344.325u | 2.30162 |
| 81 | 412 | 361.813u | 1.48769 | 182 | 906.9 | 344.250u | 2.3105 |
| 82 | 416.9 | 361.516u | 1.4949 | 183 | 911.8 | 344.168u | 2.31937 |
| 83 | 421.8 | 361.213u | 1.50212 | 184 | 916.7 | 344.084u | 2.32821 |
| 84 | 426.7 | 360.916u | 1.50937 | 185 | 921.6 | 344.006u | 2.33711 |
| 85 | 431.6 | 360.624u | 1.51664 | 186 | 926.5 | 343.930u | 2.346 |
| 86 | 436.5 | 360.342u | 1.52397 | 187 | 931.4 | 343.852u | 2.3549 |
| 87 | 441.4 | 360.062u | 1.53131 | 188 | 936.3 | 343.769u | 2.36377 |
| 88 | 446.3 | 359.771u | 1.53866 | 189 | 941.2 | 343.687u | 2.37265 |
| 89 | 451.2 | 359.465u | 1.54602 | 190 | 946.1 | 343.610u | 2.38156 |
| 90 | 456.1 | 359.164u | 1.55339 | 191 | 951 | 343.523u | 2.39043 |
| 91 | 461 | 358.856u | 1.56076 | 192 | 955.9 | 343.433u | 2.39927 |
| 92 | 465.9 | 358.564u | 1.56818 | 193 | 960.8 | 343.414u | 2.40828 |
| 93 | 470.8 | 358.279u | 1.57562 | 194 | 965.7 | 343.331u | 2.41719 |
| 94 | 475.7 | 358.010u | 1.58313 | 195 | 970.6 | 343.240u | 2.42605 |
| 95 | 480.6 | 357.747u | 1.59065 | 196 | 975.5 | 343.156u | 2.43496 |
| 96 | 485.5 | 357.478u | 1.59817 | 197 | 980.4 | 343.071u | 2.44386 |
| 97 | 490.4 | 357.235u | 1.60577 | 198 | 985.3 | 342.987u | 2.45278 |
| 98 | 495.3 | 356.985u | 1.61336 | 199 | 990.2 | 342.902u | 2.4617 |
| 99 | 500.2 | 356.762u | 1.62104 | 200 | 995.1 | 342.822u | 2.47064 |
| 100 | 505.1 | 356.535u | 1.62872 | 201 | 1.00000k | 342.734u | 2.47953 |
| 101 | 510 | 356.317u | 1.63646 | ||||
| Table 5 Detailed frequency data of inductance Ls and reactance Z | |||||||
