| 摘要 |
A coordinate displacement system using a length displacement sensor is provided to check movement direction of a slope in real time by installing length displacement sensors at three points and adopting the second rule of cosine to calculate coordinate displacement. A length displacement sensor, in which a moveable point(102), a fixing unit(103), and wires(104) are arranged in a triangle shape, detects length displacement. The second rule of cosine is applied to the detected length displacement to calculate the change of an inner angle. The changed inner angle is calculated into coordinate displacement so that a user can monitor movement direction and displacement of a slope(101).
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