Abstract
The array model of double-T shock pressure sensor is established. Shock wave is produced by a supersonic object in the air. Pressure is produced in the process of shock wave transmission. Different shock pressure sensors have different time to receive the pressure signal. In this paper, the shooting point calculation model and the finite element model of the double T-shaped array method are established. The simulation experiment is carried out. The law of shock wave propagation is verified. The model can be used to calculate the coordinates of shooting point quickly. This method is suitable for small angle oblique fire location problem, and improves the detection accuracy of shooting point.
Highlights
In order to improve the efficiency of training, it is necessary to detect the coordinates of hitting target quickly and accurately in shooting competition
The detection methods of bullet hitting target surface position include coordinate target based on image processing, metal rod measuring target, linear CCD photoelectric target, photoelectric coordinate detection target and sound locating target [1,2,3]
The method of sound positioning is characterized by convenient installation, strong environmental adaptability, reliable performance, small size, low cost and simple structure
Summary
In order to improve the efficiency of training, it is necessary to detect the coordinates of hitting target quickly and accurately in shooting competition. The detection methods of bullet hitting target surface position include coordinate target based on image processing, metal rod measuring target, linear CCD photoelectric target, photoelectric coordinate detection target and sound locating target [1,2,3]. The acoustic location detection technology has been widely used because of its strong adaptability to environment and convenient arrangement. The arrays of shock pressure sensor in sound positioning detection are N-point line array, L-type array, double triangle array and T-type array [4,5,6]. The method of sound positioning is characterized by convenient installation, strong environmental adaptability, reliable performance, small size, low cost and simple structure. The solution method of double-T model is described. The feasibility of the model is verified by simulating the shock wave produced by the bullet
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