Temperature humidity vibration chamber with RF absorption

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Applications

The Transparent Absorbing Wave Temperature and Humidity Vibration Test Chamber is a high-end testing device capable of simulating complex environmental conditions. It is particularly well-suited for reliability verification in fields such as aerospace, aviation, and automotive electronics. By superimposing temperature-humidity cycles with vibration stress, it rapidly exposes potential defects in products during transportation or use.

Standards

JJF 1101 Calibration Specification for Temperature and Humidity of Environmental Test Equipment

GB/T 5170 Inspection Methods for Environmental Test Equipment for Electrical and Electronic Products

Features

ombined temperature, humidity, and vibration testing to simulate real-world multi-stress environments

High-performance transparent wave door with excellent X-band transmission efficiency

Integrated absorbing wave materials to minimize electromagnetic reflection and standing wave interference

Wide temperature and humidity operating range suitable for extreme environmental testing

High thermal load capacity to support powered test samples during operation

Stable structural design ensuring long-term flatness and mechanical reliability

Parameters

Category	Item	Specifications
Basic Specifications	Nominal Inner Volume	9.5 m³
	Inner Chamber Dimensions	2700mm × 1800mm × 1950mm (Depth × Width × Height)
	Test Environment Conditions	Ambient temperature: 25°C, relative humidity: ≤85% RH, cold water temperature: ≤28°C
Temperature Performance	Temperature Range	-70°C ~ +100°C
	Temperature Fluctuation	≤±0.5°C
	Temperature Deviation	≤±2°C
	Temperature Uniformity	≤2°C
	Temperature Ramp Rate	- Heating: ≥10°C/min (equivalent load 1000kg, electric heating power 8kW, average across the whole range; ≥10°C/min from room temperature to -55°C, ≥10°C/min from -55°C to 70°C)- In the range of -55°C ~ +85°C, the chamber can withstand an internal heat load of 8000W- In the range of -55°C ~ +85°C, the chamber can withstand an internal heat load of 3500W and an internal cooling air supply of 100kg/h (air temperature: 2~35°C, dew point temperature: ≤40°C)
Humidity Performance	Humidity Range	35% RH ~ 98% RH (adjustable within -20°C ~ 70°C)
	Humidification Method	Humidification via hot air passing through the test piece; alternating temperature and humidity (typical value: 30°C/60°C, RH95%, temperature change rate ≥85%); constant temperature and humidity (typical value: 35°C, 90% ~ 98%)
	Humidity Deviation	≤±3% RH (when humidity >75% RH); ≤±5% RH (when humidity ≤75% RH)
Chamber Front Door	Door Configuration	Hermetic door with transparent viewport- Temperature resistance: -65°C ~ +105°C- Humidity resistance: 25% ~ 98% RHFunctional performance:1) Working frequency: X-band2) Temperature resistance range: -65°C ~ +105°C3) Humidity resistance range: 25% ~ 98% RH4) Wave transmission rate: >95%5) Standing wave ratio influence: <2%6) Power resistance: 10W/cm²7) Flatness:
Chamber Front End	Absorber Material (on Hermetic Door)	- Wave transmission rate (X-band): >95% (on left, right, and upper sides)- Power resistance: 10W/cm²- Total mass loss (TWC): ≤0.6%- Volatile condensable material (CVCM): ≤

Test Procedures

To conduct a standard combined environmental test, you should follow these steps:

Install the test specimen securely on the vibration platform and connect required power and signal interfaces.

Set the desired temperature, humidity, and vibration profiles according to the test specification.

Start the temperature and humidity control system and allow conditions to stabilize.

Activate the vibration system and run the combined environmental test for the specified duration.

Monitor key parameters throughout the test and record all relevant data.

After test completion, return the chamber to ambient conditions before removing the specimen.

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