Gradient Magnetic Field Electromagnet: Quality Inspection Report

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I. Basic Information

Equipment Name: Gradient Electromagnet

 

II. Mechanical Dimensions

Overall Dimensions:
Length * Width * Height
410 mm * 200 mm * 215 mm

 

III. Packing List

 

Name Specifications Quantity
Gradient Electromagnet Customized

1
Power Connection Cable

-

1
Probe Holder

-

1
Certificate of Conformity

-

1
Inspection Report

-

1

 

IV. Packaging Type
Wooden Box

 

V. Packaging Filler
Foam Board

 

VI. Labeling
Product Nameplate

 

VII. Total Equipment Weight
42.5kg

 

 

 

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:
Gradient magnetic field electromagnet		 Product model: Customized
Test time: May 21, 2026
    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
    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
Air Gap Display current (A) Display voltage Voltage (V) Magnetic field
strength（Gs）
38mm Gap
(central magnetic field)		 1 10.19 601.32
2 20.42 1194.71
3 30.62 1786.56
4 40.86 2372.84
5 51.14 2934.38
Table 2 Magnetic field strength data
　
Gradient magnetic field
38mmGap

Measurement area

(±5mm)

 Current

Magnetic field strength

(Gs)

Magnetic field gradient value

(T/m)
5 3A 1639.73 　
4 1669.68 2.995
3 1697.29 2.761
2 1726.56 2.927
1 1756.4 2.984
0 1786.56 3.016
-1 1815.65 2.909
-2 1844.55 2.89
-3 1873.72 2.917
-4 1901.96 2.824
-5 1930.35 2.839
Table 3: Gradient Magnetic Field Data
　
Electrical parameter test
    1. Using equipment
Digital multimeter
Impedance analyzer
    2. Test method
The digital instrument with a bridge circuit and voltammetry is used for measurement. The measurement results are shown in the table below.
Resistance R measurement
Environment
temperature		 Product temperature Measuring resistance ResistanceR@20℃ ResistanceR@85℃
20.0℃ 20.0℃ 9.993Ω 9.993Ω 12.981Ω
Table 4 Resistance R data
　
　
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

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