A three-dimensional coordinate measuring instrument has x , y , and z measurement axes arranged at right angles to each other, detects the measurement point with a probe attached to the bottom end of the z axis, and uses a scale on the measurement axis to read the three-dimensional orthogonal coordinate value of the measurement point to determine the dimensions and shape of the item. Some instruments use a cylindrical coordinate system such as a rotating table or a rotating center support base, or a polar coordinate system with an articulated mechanism. The scale usually uses a digital encoder system, and the coordinates are displayed digitally. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
三次元座標測定器は,互いに直角に配置されたx,yおよびzの測定軸をもち,z軸下端に取り付けられたプローブによって測定点を検出し,測定軸上のスケールによって,測定点の三次元直交座標値を読み取り,品物の寸法,形状を求める測定器である。なかには回転テーブル,または回転センター支持台など円柱座標系,あるいは多関節機構による極座標系を用いたものもある。スケールにはディジタルエンコーダーシステムを用い,座標をディジタル表示している測定器がふつうである。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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