Its characteristics include that the counter force is proportional with the horizontal distance of a vertical line where BHA is offset from an open hole.
新的纠斜控制方法以减小测量点与开孔点垂线间的水平距离为目标,可以提高垂钻轨迹的垂直精度。
2
In order to reduce the storage requirements for the test patterns, a vertical and horizontal test data compression BIST scheme based on the test pattern generation of twisted-ring counter is proposed.