1. Basic Introduction to Environmental Chambers

An environmental test chamber is a sealed experimental device capable of precisely simulating various natural or extreme environmental conditions (such as temperature, humidity, air pressure, lighting, gas composition, vibration, radiation, etc.). Its core function is to provide controlled and repeatable environmental scenarios for products or materials, enabling the evaluation of their performance, stability, durability, safety, and other critical metrics under different environmental conditions. It is widely used in product development, quality testing, scientific research experiments, and other fields, serving as an “environmental simulation laboratory” for verifying product reliability.

2. Structural Composition of the Environmental Chamber  

（1）Control System: Includes control modules for temperature, humidity, lighting, gas concentration, etc., serving as the “brain” of the environmental chamber, responsible for setting, monitoring, and controlling environmental parameters.

（2）Test Chamber: Constructed from high-strength, corrosion-resistant materials, it features excellent sealing and insulation properties, with an adjustable internal space designed to accommodate test samples.  

（3）Heating and Cooling System: Enables rapid temperature changes and stable control within the chamber, ensuring the accuracy of the test environment.  

（4）Humidity Control System: Utilizes humidification and dehumidification devices to precisely control humidity levels within the chamber, meeting various testing requirements.

（5）Circulation System: Ensures uniform distribution of environmental parameters within the chamber, enhancing the reliability and accuracy of testing.  

（6）Monitoring System: Continuously monitors environmental parameters inside the chamber to ensure environmental stability and provide reliable data support for testing.  

（7）Alarm System: Issues an alarm signal when environmental parameters exceed the set range, promptly alerting users to ensure safe testing operations.

3. Environmental Chamber Usage Process  

When using an environmental chamber for testing, the following process should generally be :  

（1）Preparation: Inspect all components of the equipment to ensure they are in good condition and that cable connections are secure; clean the interior of the test chamber to ensure no debris affects test results; verify that parameters in the control system are correctly set; place the product to be tested into the environmental simulation chamber.

（2）Set Test Conditions: Based on test requirements, use the control panel to set parameters such as temperature, humidity, lighting, and gas concentration; activate the cooling or heating system to adjust the internal temperature to the desired level; activate the ventilation system to maintain airflow within the chamber.

（3）Begin testing: After setting the test conditions, the environmental testing of the product can commence. Throughout the testing process, closely monitor changes in internal parameters such as temperature and humidity, and promptly adjust relevant parameters in the control system to ensure accurate and reliable test results.

4. Application Cases for Environmental Chambers

(1) When developing an outdoor smartwatch, it is necessary to test its screen display, battery life, and sensor sensitivity under extreme conditions of -30°C (extreme cold) and 60°C (high temperature) in a high/low-temperature test chamber. Additionally, the material of the watch strap must be verified in a humid heat test chamber to ensure it does not crack or mold due to high humidity (90% RH).

(2) Medical devices (such as infusion sets) must undergo sterilization compatibility testing in accordance with ISO 11607 standards. This involves simulating the sterilization process in a high-temperature, high-pressure steam test chamber to verify whether the materials deform or experience performance degradation due to high temperatures.

(3) For special industries (such as aerospace, defense, and polar research), environmental test chambers must simulate extreme environments to verify product reliability under “non-routine conditions.”

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