DXBK15-100 Four-Ring DC Helmholtz Coil: Comprehensive Quality Evaluation
Precision Engineered for Optimal Performance
Key Specifications
Dimensions: 335mm × 350mm × 360mm
Coil Spacing: 38/60mm (adjustable)
Coil Inner Diameter: 226mm
Coil Outer Diameter: 350mm
Weight: 38kg
Performance Validation Overview
Testing Objective
This evaluation verifies compliance with technical standards, assesses operational efficiency, and establishes baseline data for future design improvements and customer support.
Test Conditions
Ambient Temperature: 14.0°C
Initial Product Temperature: 14.0°C
Lead Wire Length: 3m
Background Magnetic Field: <30,000nT
Magnetic Field Analysis
Equipment Used
DX-F2031 Power Supply
DX-180 Gauss Meter
DXACP Power Amplifier
Field Strength Measurements
| Current (A) | Voltage (V) | Magnetic Field (Gs) |
|---|---|---|
| 1 | - | 20.941 |
| 2 | - | 41.871 |
| 3 | - | 62.773 |
| 4 | - | 83.632 |
| 5 | 28.83 | 104.592 |
Uniformity Assessment
Test Zone: φ80×120mm
Maximum Field: 105.098Gs
Minimum Field: 104.443Gs
Uniformity: 0.48% (5A input)
Electrical Characteristics
Test Instruments
High-Precision Digital Multimeter
Advanced Impedance Analyzer
Resistance Profile
Measured Resistance: 5.060Ω @14°C
Calibrated Resistance:
5.204Ω @20°C
6.760Ω @85°C
Inductive Properties
| Parameter | Minimum Value | Frequency | Maximum Value | Frequency |
|---|---|---|---|---|
| Inductance (Ls) | 19.5632mH | 1kHz | 45.1178mH | 20Hz |
| Impedance (Z) | 12.182Ω | 20Hz | 128.272Ω | 1kHz |
Quality Assurance Highlights
Demonstrated <0.5% magnetic field uniformity within critical operational zones
Temperature-stable resistance compliance (14°C to 85°C range)
Dual-frequency inductance optimization for DC applications
This evaluation confirms the DXBK15-100's adherence to precision standards, making it suitable for advanced magnetic field research and industrial calibration.
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Reference: https://www.dexinmag.com/newsinfo/1001835.html