| 摘要 |
The equipment includes an inclinometer laser emitter (3), producing an adjustable collimated laser beam (5). Two further laser emitters (18, 19) produce visible, collimated laser beams (20, 21) which define a reference direction by co-operation with reference surfaces. The angular positioning equipment includes at least one inclinometer laser emitter (3), producing a collimated laser beam (5), with a mechanism (8) for altering the inclination of this laser beam in an inclinometric plane. Fixed within the box which supports this structure, there are at least two further laser emitters (18, 19) which serve to define a reference direction (22). These produce visible, collimated laser beams (20, 21) emerging from opposite, parallel lateral surfaces (23, 24). The beams define a reference direction by co-operation with reference surfaces. The two laser emitters (18, 19) are supported within the box (1) by means of spacers (17).
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