The improved device consists of J2135 collisionexperiment device, drawing table and soleplate, and also adds a mobile board and a L-type positioning device.
改进的装置由J2135型碰撞实验器、绘图板和底板组成，并增加了活动托板和“L”型定位器等装置。
2
Experiment results show that the algorithm can solve the problems of watermarking collision and relieve the restriction of user number in multiple watermarking algorithms.
实验结果表明，该算法能有效解决多重数字水印中水印碰撞和用户数量受限问题。
3
Decrease the system error on the airtrack experiment and realize the full inelastic collision on the airtrack.