Study on Fault Diagnosis Strategy of Radio Fuze Microsystem

The radio fuze will be out of order easily because of small size and high integration. In order to improve the testability, an effective method to achieve rapid detection and fault isolation is to determine reasonable test-sets and a best diagnosis strategy. Based on the functional block diagram, a fault message matrix among every module of inner radio fuze is built and some optimum test-sets are chosen by resolving the matrix gradually. In the end, a optimal diagnosis strategy is confirmed. It shows that the purpose of fault detection is achieved by using the method given by the paper quickly. The fault diagnosis strategy can also apply to automated testing and fault isolation decision-making for other micro- electromechanical system.