Temperature Humidity Vibration Combined Test Chamber

Applications

Aerospace Sector: Evaluates the performance of aircraft components under temperature, humidity, and vibration conditions.

Electronics and Communications Industry: Conducts comprehensive testing on electronic components and communication equipment to assess their reliability in diverse environments.

Materials Science: Assists researchers in investigating changes in the physical and chemical properties of materials under varying environmental conditions, providing data support for new material development.

Automotive Manufacturing: Simulates the environmental conditions automotive components encounter in diverse climates and road conditions to evaluate their durability and reliability.

Standards

GB/T 2423.35‌ Procedures for combined temperature, humidity, and vibration testing, including environmental condition setting and performance monitoring

‌GB/T 28046.3‌ Focuses on automotive electrical and electronic systems, classifying severity by component installation location (e.g., engine, body) to simulate actual operating environments

GB/T 44279-2024 Covers combined temperature-humidity-vibration-low-pressure testing, enhancing simulation capabilities for extreme environments (e.g., high altitude or tropical climates)

IEC 60068-2-53 Test methods for electrical and electronic products under combined temperature, humidity, and vibration environments, emphasizing accelerated exposure of product failure modes through multi-stress superposition

ISO 16750-3 Prescribes coordinated testing of mechanical loads (vibration) and temperature conditions for automotive electronic equipment, ensuring component durability during vehicle operation

Features

1. Simultaneously simulate multiple environmental factors: Capable of concurrently simulating temperature, humidity, and vibration to more closely replicate actual product usage conditions, enhancing test accuracy.

2. Accelerates exposure of potential product defects: Through stress superposition, it expedites the manifestation of latent design flaws, manufacturing imperfections, or premature component failures, providing evidence for design enhancements.

3. Cost savings: Reduces equipment investment and testing space requirements, thereby lowering R&D and testing expenses.

Parameters

Item	Specification
Temperature Range	-60°C ~ +150°C
Temperature Change Rate	≥5°C/min (with load), average over the range of -40°C to 100°C
Temperature Deviation	≤±2°C (no load, steady state)
Temperature Uniformity	≤2°C (no load, steady state)
Temperature Fluctuation	≤±0.5°C (no load, steady state)
Humidity Range	20% R.H. ~ 98% R.H.
Humidity Deviation	+2% R.H. ~ -3% R.H. (when >75% R.H.), ±5% R.H. (when ≤75% R.H.)

Test Procedures

Sample Preparation: Develop test protocols based on product type (e.g., electronic components or metal parts) and record baseline data.

Environmental Simulation: Simultaneously apply temperature (-70°C to 150°C), humidity (10%-98% RH), and vibration stress within the test chamber using a multi-channel closed-loop control system.

Intermediate Inspection: Conduct visual inspections, dimensional measurements, and electrical tests at critical test phases (e.g., temperature peaks), comparing before-and-after data.

Data Analysis: Evaluate specimen responses, identify failure modes (e.g., resonance or material aging), and compile detailed reports.

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