电子设备单机产品正压泄复压试验方法研究

Study on Pressurization,Depressurization and Repressruization Test Method for Electronic Equipment Stand-Alone Products

正压泄复压试验主要用于考察电子设备单机产品在高于一个大气压状态下对泄复压环境的适应性,文章结合正压泄复压试验的特点,研制了一套正压泄复压试验设备,解决了试验泄压阶段气体温度降低,试件及容器内表面结露、泄压以及复压过程中速率的精确控制等难题,通过调试试验证明,试验设备各项技术指标均满足试验技术要求,可以确保正压泄复压试验的顺利进行。

Pressurization,depressurization and repressruization test is primarily applied to investigate the adaptability of electronic equipment stand-alone products to the depressurization and repressruization environment under the condition of above normal atmospheric pressure.Combining with the characteristics of pressurization,depressurization and repressruization test,we develop a set of pressurization,depressurization and repressruization test equipment.It solves the difficult problems such as gas temperature decrease during depressurization test,condensation on the inner surface of specimens and containers,precise control of rate during depressurization and repressruization,etc.The results prove that all of the test equipment technical indicators meet the technical requirement,which can ensure the smooth process of pressurization,depressurization and repressruization test.