一种用于惯性系统的刚挠背板设计方法

惯性系统是一种电路种类多、电信号复杂的电子产品，电路信号的品质直接决定整个产品的质量，背板对于各个功能电路的高密度信号互连关系着整个系统的性能。提出了背板设计方法，将惯性系统中电气系统的功能模块电路进行合理划分，确定立体化布局。为模块电路所需的二次电源进行集中分配，对于生成二次电源的总电源进行针对性的电磁滤波，实现惯性系统敏感器、执行机构和模块电路的刚挠电气连接。刚挠背板的设计不仅实现了功能电路的三维布局、电路网络的相互连接，还对信号的质量进行了针对性的优化设计。实践表明，该设计方法提升了电路的集成度，缩小了惯性系统的体积，同时还提高了产品的可靠性。

A Method of Rigid-flex Backplane Design for Inertial System

The inertial system is an electronic product with much type of circuits and complicated electrical signals. The quality of the circuit signal directly determines the quality of inertial system. The high-density signal interconnection of the backplane for each functional circuit is related to the performance of the entire system. The backplane design methods proposed in this paper makes a reasonable division for the functional module circuit of the electrical system to determine the tridimensional layout. The secondary power supply needed by the module circuit is centrally distributed, and the main power supply is subject to targeted electromagnetic filtering to realize the rigid flex electrical connection of the inertial system sensor, actuator and module circuit. The design of the rigid-flexed backplane not only realizes the three-dimensional layout of functional circuit, the interconnection of the circuit network, but also optimizes the quality of the signal. The practice shows that this design method improves the integration of the circuit, reduces the volume of the inertia system, and improves the reliability of the product.