In this paper the concept of Built in Test (BIT) is introduced,a method for the testability design of avionic integrated equipment is proposed with emphasis on the BIT design of major parts.

• 本文介绍了机内自动测试(BIT)的基本概念,提出了一种解决航空电子综合化设备测试性设计的方法,并对设备中主要部分的BIT设计作了详细的阐述。