A High-Precision Angle Measurement System Of A Simulation Swing Test Bench

Simulation is an integration technology which is based on the similarity principle, control theory, computer and information technology as well as professional knowledge in relevant application fields. It takes computer equipment and a variety of physical effects as tools, and uses mathematical model or some practicality to analyze the actual or envisaged systems.A high-precision angle measurement system for a swing test bench is presented in this thesis. The swing test bed is a large high-precision weapon test system integrating mechanical, electrical, instrumental and computer technologies, and it could simulate the pitch and roll movements of warships. The structure of the swing test bench is analyzed using the finite element method. The pitch and roll angles of the swing bench can be obtained in real time by using the angle measurement system based on the designed software and hardware. The measured angles provide the basic information for the effectiveness analysis of the tested weapons.High precision photoelectric encoders are adopted as the core component of the angle measurement system. High-level language is used to compile the human-machine interface programme, and drivers development kits (DDK) is taken as the tool to develop the hardware-driver programme. The high-frequency and real-time swing angles are measured, stored in data base and output in asynchronous serial communication and network communication ways. The errors of the angle measurement system are analyzed, and the measurement precision is calculated and calibrated. The experimental results show that the designed angle measurement system meets the requirement of swing test benches.