AGREE test chamber with wave absorption/permeability
Nominal inner volume: 9.5m³
Inner chamber dimension: 2700mm × 1800mm × 1950mm (depth × width × height)
Performance
1) Test Environmental Conditions: Ambient temperature is 25℃, relative humidity ≤ 85% RH, cold water temperature ≤ 28 ℃
2) calibration test method ⑴ JJF1101 environmental test equipment temperature calibration specifications ⑵ GB / T5170 environmental test equipment test methods for electrical and electronic products
Temperature range: -70 ～ +100 ℃
Temperature fluctuation: ≤ ± 0.5 ℃
Temperature deviation: ≤ ± 2 ℃
Temperature uniformity: ≤ 2 ℃
Heating and cooling rate: ≥10℃/min (with equivalent aluminum 1000kg, electric power 8kW, full range on average, ranging from room temp to -55℃, ≥10℃/min; -55℃ to 70℃, ≥10℃/min)
Load capacity: in the range of -55 ～ +85℃, allowing 8kW electric power heating load in the chamber with; to keep warm at any temperature within the range of -55 ～ +85 ℃, allowing the test chamber with 3500W electric power heating load and convey into the chamber 100kg/h cooling air (air temperature: 2 ～ 35℃, dew point temperature ≤-40℃).
Humidity range: 35% RH ～ 98% RH (within 20℃ ～ 70℃ controllable)
Damp heat mode: process where UUT works: damp & heat cycling (typical: 30 ℃/60℃, RH95%, temperature variation ≥85%), constant damp and heat (typical: 35℃, 90% ～ 98%).
Humidity deviation ≤ ± 3% (humidity> 75% RH), ≤ ± 5% (humidity ≤ 75% RH). The front door of the chamber is the wave permeable door, the permeable door is resistant to the environment: temperature: -65℃ ～ + 105℃, humidity: 25% ～ 98%, function and performance requirements are as follows:
1) Working frequency band: X band.
2) Tolerance temperature range: -65 ℃ ～ + 105 ℃.
3) Tolerance humidity range: 25% ～ 98% RH.
4) Transmittance: X band: more than 95%;
5) The impact on the standing wave is less than 2%;
6) resistance to power: 10W/cm2;
7) flatness: ≤ 2cm (diagonal), the product is not deformed.
8) Fixing method: high-strength glue and test chamber border adhesion.
The front of the chamber (close to the wave permeable door) at the top, on the left and right high & low temperature resistant and humidity resistant, wave absorbing materials are attached, technical requirements on wave absorbing materials within the chamber are as follows:
1) X band: better than 25dB;
2) resistant to power: 10W/cm2;
3) Total mass loss (TWC): ≤0.6%;
4) CVCM: 0.02%;
