| 摘要 |
PURPOSE: A support for installation of horizontal angle measuring device is provided to accurately measure horizontal angle by keeping the device horizontal regardless of slant of measuring basis. CONSTITUTION: A support comprises a weight(70); an axis(50); a rolling body(40); a rail(32); a housing(20); and a bottom plate(10). The weight is fixed under a horizontal angle measuring device(60). The axis is extended to both sides of the horizontal angle measuring device. The rolling body is pulley type and is rotatably inserted to both ends of the axis. An outer surface of a central part of the rolling body is concave. The rail provides a rolling path of the rolling body. The housing has the rail built in. The bottom plate supports the housing and has reference protrusions formed on both sides thereof.
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