Thermal vacuum test chambers are widely used in aerospace, electronics, automotive and other fields to test the performance and reliability of products in these fields. For example, in the aerospace field, thermal vacuum test chambers can simulate the real state of products at high altitudes and test the performance and reliability of products under high and low temperature conditions. In the electronics field, thermal vacuum test chambers can test the performance and reliability of products under vacuum conditions, such as vacuum tubes, electron microscopes and other equipment. In the automotive field, thermal vacuum test chambers can test the performance and reliability of automotive parts under high and low temperature conditions to ensure the safety and reliability of the car.
In short, the thermal vacuum test chamber is an important testing equipment that can simulate the real state of the product in the use environment and test the performance and reliability of the product under high and low temperature conditions. This article introduces the structure and working principle of the thermal vacuum test chamber and discusses its application fields.
Standards for thermal vacuum testing:
"GJB 3758-99 Thermal Simulation Method for Satellite Vacuum Thermal Test"
At present, there are very few laboratories that can conduct thermal vacuum tests. They mainly include the Environmental Reliability and Electromagnetic Compatibility Test Center, the Aerospace Environmental Reliability Test and Inspection Center, etc.
Structure of thermal vacuum test chamber
Thermal vacuum test chamber usually consists of vacuum chamber, heating system, refrigeration system, control system and measurement system. Among them, the vacuum chamber is the core part of the test chamber, which is used to simulate the real state of the product in the use environment. The heating system is used to heat the product to the required temperature, and the refrigeration system is used to keep the product at a low temperature during certain experiments. The control system is used to control the temperature, pressure and other parameters of the test chamber, while the measurement system is used to monitor the performance and parameters of the product.
Working principle of thermal vacuum test chamber
The working principle of the thermal vacuum test chamber is mainly achieved through the following steps:
1. Vacuuming: The vacuum chamber of the test chamber is evacuated to a vacuum state to simulate the actual state of the product in the use environment.
2. Heating: The product is heated to the required temperature through the heating system to test the performance and reliability of the product under high temperature conditions.
3. Refrigeration: In some experiments, the product is kept at low temperature through the refrigeration system to test the performance and reliability of the product under low temperature conditions.
4. Measurement: Monitor product performance and parameters through measurement systems to evaluate product performance and reliability.
5. Control: Control the temperature, pressure and other parameters of the test chamber through the control system to ensure the accuracy and repeatability of the experiment.
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