The research on the dynamic compensation and real-time processing method of the shock wave's pressure sensor
Wei Wang, Zhijie Zhang
COMPUTER MODELLING & NEW TECHNOLOGIES 2014 18(12D) 250-254
Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan, Shanxi, China, 030051
The dynamic compensation technology is an effective approach to improve the dynamic response characteristics of the sensor. Based on the improved Quantum-behaved Particle Swarm Optimization (QPSO), a sensor dynamic compensation method is put forward with the shock wave's pressure testing as background. This method is according to the experimental data of the sensor dynamic calibration experiment for the system identification, thus creating the sensor and the reference model which can get the weight and coefficient of the Dynamic Compensation Filter quickly and accurately. After the MATLAB simulation, the results show that the response speed of the sensor model which is compensated by this method accelerates, the working frequency bandwidth is expanded, and meanwhile the noise is restrained effectively. In addition, based on the FPGA data acquisition system, the distributed arithmetic is introduced, and the parallel structure design of the Sensor is completed so as to realize the real-time correction of the dynamic error of the pressure sensor.