Classification
DR999WB Clothing Electromagnetic Radiation Protection Performance Testing System
Category:
keywords:
Functional testing instrument
DR999WB Clothing Electromagnetic Radiation Protection Performance
Clothing Electromagnetic Radiation Protection Performance Testing
Product Description
【Scope of Application】
Using a microwave test dummy, in an electromagnetic semi-electromagnetic wave darkroom, through electromagnetic radiation sources (including signal amplifiers and directional transmitting antennas) to emit electromagnetic waves of different frequencies, this system tests the attenuation of the electromagnetic wave intensity perceived by the receiving sensors on the head, chest and abdomen of the dummy after it is dressed. This system adopts a real simulation of an overall comprehensive test for protective clothing to test the microwave protection performance.
【Related Standards】
GB/T23463 et al.
【Technical Parameters】
I. Microwave Darkroom
1. Performance Indicators
Frequency Range: 30 MHz ~ 18 GHz
Absorptive Material Reflection Loss: 30 MHz ~ 18 GHz ≥ 15 dB
(The absorptive material uses a composite absorptive material, that is, conical carbon sponge absorptive material adhered to ferrite)
2. Product Usage
The microwave darkroom is mainly used for measuring radio electromagnetic interference (EMI) and radiation sensitivity (EMS).
3. Composition Structure
1) Shielding Room: Composed of shielding shell, shielding door, ventilation waveguide window and various power filter circuits, etc. The shielding shell is usually welded, which can be made of cold-rolled steel plate directly welded or special galvanized steel plate welding process, or modular assembly of shielding steel plates, which is convenient for disassembly and relocation.
2) Absorptive Material: Single-layer ferrite sheet, working frequency range 30 MHz - 1000 MHz; Conical carbon sponge absorptive material: The conical carbon sponge absorptive material is formed by the penetration of polyurethane foam plastic in the carbon glue solution. It has good flame retardant properties.
4. Product Specifications
7m × 4m × 3m (can also be customized non-standard darkroom according to customer requirements)
II. Signal Source:
1. Test Frequency Range: 300 KHz ~ 3000 MHz
2. Frequency Stability: ≤ ±5 × 10-6
3. Frequency Resolution: 1 Hz
4. Signal Purity: ≤ -65 dBc/Hz (offset 10 KHz)
5. Output Level: -45 dBm ~ +10 dBm
6. Level Accuracy: ≤ ±1.5 dB (25℃ ± 5℃, -45 dBm ~ +5 dBm)
7. Harmonic Suppression Ratio: ≥ 30 dB (1 MHz ~ 3000 MHz), ≥ 25 dB (300 KHz ~ 1 MHz)
8. Directionality: ≥ 50 dB (after vector calibration)
9. Power Scan: -8 dBm ~ +5 dBm
10. System Impedance: 50 Ohms
11. RF Power Amplifier
Frequency Range: 1 - 3 GHz
Average Power: 100 W
Maximum Gain: 50 dB
Gain Flatness: ± 6 dB
Power Stability: ± 0.25 dB
Noise Suppression: ≥ 45 dBc
12. Antenna
Frequency Range: 1 - 8 GHz
Gain: 11 dB
Polarization Mode: Linear Polarization
Standing Wave: 1.5:1
III. Receiver:
1. Frequency range: 300 KHz ~ 3000 MHz
2. Resolution bandwidth: 100 Hz ~ 20 KHz
3. Dynamic range: ≥ 95 dB ( RBW = 1 KHz )
4. Maximum input level: +10 dBm
5. Input damage level: +20 dBm ( DC +25 V )
6. Port: Return loss ≤ 1.2
7. Phase characteristics:
Phase resolution: 0.01°
Phase trajectory noise:
0.5° @ RBW = 1 KHz, 1° @ RBW = 3 KHz ( 25°C ± 5°C, 0 dBm )
IV. Test dummy
1. Dummy size: 1.7 ± 0.15 m
2. Dummy surface area: 1.7 ± 0.3 m2
3. Number of zones: Head, chest and abdomen three parts
4. Fixed on the ground, can be conveniently worn with clothing
5. Weight: Approximately 40 Kg
V. Other Matters
1. Working environment temperature and humidity: 0 - 40℃, 0 - 75%RH
2. Power supply: AC 220V ± 30V, 50Hz 1000W
3. Dimensions: 70mm × 50mm × 75mm (L × W × H) (excluding computer)
4. Installation space: More than 50% larger than the size of the shielding darkroom (depending on the actual design)
Related Products
Welcome your message consultation
Any questions? Keep in touch. We 'd love to hear from you.
Professional Piping Solutions, Global Export Expertise
Add:
NO.8 Kangda Road, Sanxi Industrial Area, Ouhai, Wenzhou, Zhejiang, China
Mob/WhatsApp/：
+86 15258750702
TEL:
+86-0577-88781973
Copyright © 2026 Wenzhou Darong Textile Instrument Co., LTD. Powered by:www.300.cn | seo