| 摘要 |
PURPOSE:To reduce measuring time and to improve measuring precision by a method wherein detection signals from an inclinometer equipped on a pit or a stabilizer and signals from a depth detector equipped on a rotary table are inputted to a measuring device to perform an arithmetic operation. CONSTITUTION:The inclinometer 10 is fitted to an excavating pit 4 or a stabilizer 5. And further, a depth detector 13 is fitted on a rotary table 2. An indicator 14 contains an operation unit 15 in it and can operate various kinds of displacement quantity from a vertical state for evaluation of shaft vertical accuracy. That is, in the operation unit 15, an X, Y direction horizontal displacement value and an X, Y direction composite displacement value are operated and displayed based on detection signals from the inclinometer 10 and the depth detector 13. In this way, a measurement of high accuracy can be performed in a short measurement time. |
