| 摘要 |
A ballmarker shaped slope measuring apparatus is provided to precisely measure the direction and angle of slope of ground by using a micro processor for controlling blinking of LEDs(Light Emitting Diodes). A ballmarker shaped slope measuring apparatus comprises plural LEDs(3) positioned every predetermined angle, an acceleration sensor(1) detecting acceleration in more than one axial direction, and a micro processor(2). The micro processor calculates a slope direction of ground by using the acceleration in each axial direction, and controls blinking of one or portions of the LEDs positioned in the slope direction.
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