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Shanghai Juyi Environmental Testing Equipment Co., Ltd
Take you to analyze the core components of the temperature and humidity comprehensive vibration test box in depth
Date: 2025-10-23Read: 0
In the fields of aerospace, automotive manufacturing, electronic equipment, etc., products must withstand rigorous environmental stresses such as temperature, humidity, and mechanical vibration. The temperature and humidity three comprehensive vibration test chamber is a device that simulates this complex working condition. It integrates cold and hot alternation, moisture erosion, and severe vibration, and truly reproduces the extreme environment throughout the product's entire life cycle. Behind its powerful functionality is the highly collaborative nature of multiple precision systems. In depth analysis of the core components of the temperature and humidity comprehensive vibration test box is necessary to better utilize it.
1. Temperature and humidity environment system
The system consists of a refrigeration compressor, heating tube, humidifier, and dehumidification device, responsible for accurately regulating the temperature and humidity inside the box. The refrigeration system adopts a cascade compressor for refrigeration, which can achieve a wide temperature range of -70 ℃ to+180 ℃; Humidification is achieved through steam generators or ultrasonic atomization technology, with a humidity range of 20% to 98% RH. Combined with high-precision platinum resistors and humidity sensors, the temperature control accuracy reaches ± 0.3 ℃, and the humidity fluctuation is less than ± 2%, ensuring a realistic and stable environment simulation.
2. Vibration system
The core is an electromagnetic vibration table, consisting of an excitation coil, a moving coil, a suspension system, and a power amplifier. By generating controllable excitation force in a magnetic field through alternating current, simulate the vibration environment during transportation, flight, or operation. The vibration table has a broadband response (usually 0.1Hz~3000Hz), which can achieve various vibration modes such as sine, random, and impact. The maximum thrust can reach tens of kilonewtons, meeting the needs of different specimens.
3. Test chamber and sealing structure
The inner chamber of the test box is made of corrosion-resistant stainless steel, and the outer wall is made of insulation material and protective shell. The key lies in its specially designed dynamic sealing structure, which allows the dynamic coil of the vibration table to freely reciprocate inside the temperature and humidity box, while effectively isolating cold and hot air flows and moisture leakage, ensuring that the temperature and humidity field is not affected by vibration interference, and achieving true "three comprehensive" synchronous testing.
4. Control system
Integrated industrial computer and dedicated software platform to coordinate temperature, humidity, and vibration parameters uniformly. Support preset complex test procedures (such as temperature cycling+random vibration+humidity maintenance), real-time monitoring of all sensor data, automatic adjustment of system outputs, and generation of complete test reports. Equipped with multiple safety protection mechanisms such as over temperature, over vibration, and leakage.
5. Data Collection and Monitoring System
Equipped with multi-channel data acquisition cards that can be connected to external accelerometers, temperature probes, etc., real-time recording of the response of the specimen under composite stress provides a basis for failure analysis.