| 摘要 |
A demountable optical tooling scale fixture wherein a tooling ball is demountably attached by a connecting member and plate to a reference point on a surface to be measured and is positioned within and rotatably gripped by two plates set in a face-to-face relationship to each other; said plates are designed to receive optical tooling scales directly or by means of adaptors. In each case, the optical tooling scale will be positioned in a known spatial and angular relationship to the ball which in turn is held at a known distance from the point of mounting on the surface to be measured.
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