An Ann Fault Diagnosis Of Virtual Measurement System

With the application of computer and neural network technology in measurement and instrument fields, the measurement is required to be more complex and more exact. It is important to break the traditional mode of measurement and develop the measurement system based on virtual instrumentation. With the effect of all kinds of objective factor and subjective factor, the fault occurs in the exterior devices of the system . So it is necessary for the system to diagnose by itself. It has the merits of forecast and memory and real time.The study of fault diagnosis of virtual measurement system based on artificial neural network is primary work. It achieves the aims with the use of virtual instrumentation and Artificial neural network technology and some knowledge of hardware . The article firstly introduces the knowledge of virtual instrumentation and Artificial neural network technology, and then introduces the design of hardware and software. It also introduces the project of hardware design and the course of software design. The design uses virtual instrumentation to replace traditional instrumentation, and achieves the aim of fault diagnosis of sensors.