Aircraft Powered Parametric Test System Is Developed

The electrical power supply system of an aircraft (EPSSA) plays an important role in the safe aviation of a modern airplane. It is very significant in the research of EPSSA to study the accurate and rapid measurement of the parameters of EPSSA. In this paper Virtual Instrument technology, the digital testing and measuring instrument based on computer is used to design a system for measuring EPSSA parameters.The aim of designing this system is to test whether the quality of an EPSSA reaches the demanded standard so that the overhauling can be decided. The hardware part of the designed system deals with the structure design of this system, the use of a new data acquirement card DAQ-2010 based on PCI bus, the design of a signal adjustment circuit and a load driving circuit. The software part includes the system verifying and measuring software of an EPSSA. The program was developed using VC++ by means of software engineering methodology.The system is implemented and the experiment shows that the designed system achieves all design request successfully.