网络测试点的最优平衡选取

Arithmetic on Choice of the Networking Pads

在电子CAM应用中,针床检测设备把印制板上连通电阻为零的焊盘集合称为一条网络.根据电路理论,在每条网络中任意选取一点作为测试点,便可满足电测试要求.但在实际操作过程中,测试点并不能随意选取,它必须满足力学平衡特性.为了最佳满足力学平衡特性,文中提出了网络测试点的一种最优平衡选取算法.

In application of electronic CAM,a set of solid pads on PCB connected without resistance is called a network, any one of the pads within the networks can be picked up as the circuit testing point.However in practice,the testing points can not be selected randomly,it must meet the moment balance.To make the picked pads for testing meet the moment balance,a arithmetic is raised to select the pads which will meet the moment balance．