Method for checking a rotating laser for cone errors
AssigneeHilti Aktiengesellschaft
InventorSasha Lukic
Life of this patent
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Abstract
A method for checking a rotating laser for cone errors using a laser receiver, where the rotating laser projects a laser beam which can rotate in a horizontal plane about an axis of rotation and the horizontal plane spans from a first horizontal axis to a second horizontal axis. The rotating laser is arranged in a horizontal position at a first location and at a second location between a first measurement surface and a second measurement surface. The rotating laser having, at the first location a first measurement distance, and having, at the second location a second measurement distance, to the second measurement surface.
Claims13
A method for checking a rotating laser (11) for a cone error, wherein the rotating laser (11) projects a first rotating laser beam (22) rotatable about an axis of rotation (21) in a horizontal plane and wherein the horizontal plane is spanned by a first (51) and a second (52) horizontal axis, comprising the steps of:
- setting up the rotating laser in a first location between a first measurement surface (91) and a second measurement surface (92), wherein the rotating laser (11) in the first location has a first measurement distance (D1) to the second measurement surface (92) and is oriented in a measuring direction (96) toward the second measurement surface (92);
- orienting the first and second horizontal axes (51, 52) of the rotating laser (11) in a horizontal state, wherein the horizontal state of the horizontal axes (51, 52) is established by a first zero position (v1) for the first horizontal axis (51) and a second zero position (v2) for the second horizontal axis (52);
- determining an incident position of the laser beam (22) on the first measurement surface (91) as a first control point (97);
- determining an incident position of the laser beam (22) on the second measurement surface (92) by a detection field (18) of a laser receiver (12) as a second control point (98) and storing a distance of the second control point (98) to a zero position (19) of the detection field (18) as a first height offset (H1);
- setting up the rotating laser (11) in a second location between the first measurement surface (91) and the second measurement surface (92), wherein the rotating laser (11) in the second location has a second measurement distance (D2) to the second measurement surface (92) and is oriented in the measuring direction (96) toward the second measurement surface (92);
- arranging the rotating laser (11) at a height at which the incident position of the laser beam (22) on the first measurement surface (91) matches the first control point (97);
- determining an incident position of the laser beam (22) on the second measurement surface (92) by the detection field (18) of the laser receiver (12) as a third control point (99) and storing a distance of the third control point (99) to the zero position (19) of the detection field (18) as a second height offset (H2);
- calculating a distance between the second control point (97) and the third control point (98) as a difference (Δ) from the first and the second height offsets (H1, H2);
- calculating the cone error (δ) from the first measurement distance (D1), the second measurement distance (D2), and the difference (Δ);
- and
- comparing the cone error (6) against a maximum error (δmax).
Dependencies are inferred from the claim text.