QCN的组织者吸取了教训，现在他们提供一种能够固定在地上并且通过US B数据线连接到电脑的加速度计。
The QCN organisers have learned from their mistakes and now offer a separate accelerometer that can be screwed to the floor and attached to any computer with a USB cable.
用线加速度计代替陀螺，不仅可以降低测试系统的成本，还可以避免陀螺不适合大角度运动所引起的问题。
Replacing gyroscopes with linear accelerometers, not only can make the cost of the measurement system less, but also can avoid the problem that gyroscopes isn't adapted to the great Angle motion.
因此，采用高精度线加速度计并通过信号处理提高其精度，以及实现加速度到速度和距离的高精度转换具有现实的意义。
So it is provided with the practical significance to improve precision and realize the high precision transform from acceleration to velocity and distance.
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