LARGE-SCALE, THREE-DIMENSIONAL COORDINATE MEASURING METHOD AND APPARATUS WITH LASER TRACKING

摘要

Disclosed are a large-scale, three-dimensional coordinate measuring system with laser tracking and a large-scale, three-dimensional coordinate measuring apparatus with laser tracking, composed of three parts, namely a measuring machine, a laser tracker and a computer control system, and a laser interferometer measuring line displacement, wherein the measuring machine is provided with a horizontal arm (5) able to move in the direction X, and a main shaft (8) able to move in the direction Z; a corner prism (4) is mounted on the other end of the horizontal arm (5); a measuring head rotating body (11) is provided on one end of the main shaft (8); a measuring head (10) is provided on the measuring head rotating body (11); a target (6) and an angle measuring means (7) are provided on the other end of the main shaft (8); and a temperature measuring element is attached on the main shaft (8) for temperature compensation. The invention is mainly applicable to three-dimensional coordinate measurement.