Cortesian coordinate measurement for rotating system
AssigneeMicronic Laser Systems AB
InventorJonas Walther
Life of this patent
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Abstract
In a measurement device for measuring a peripheral position in a Cartesian coordinate system, a rotating laser source is configured to emit a laser beam along a radius of a rotator. A reflector is configured to reflect the laser beam in a direction orthogonal to a path of the laser beam, and a scale having a pattern of transparent and reflective areas is positioned at a peripheral position of the measurement device. A detector is configured to provide a sequence of pulses by detecting a reflex or transmission of the rotating laser beam while the laser scans over the scale. The sequence of pulses correspond to Cartesian coordinates of the system.
Claims29
A measurement device for measuring a peripheral position in a Cartesian coordinate system, the measurement device comprising:
- a rotating laser source configured to emit a rotating laser beam along a radius of a rotator;
- a reflector configured to reflect the laser beam in a direction orthogonal to a path of the laser beam;
- a scale having a pattern of transparent and reflective areas, the scale being positioned at a peripheral position of the measurement device;
- and
- a detector configured to provide a sequence of pulses by detecting a reflex or transmission of the rotating laser beam while the laser beam scans over the scale, the sequence of pulses corresponding to Cartesian coordinates of the system.
A method for measuring a peripheral position in a Cartesian coordinate system, the method comprising:
- emitting a rotating laser beam along a radius of a rotator;
- reflecting the rotating laser beam in a direction orthogonal to a path of the laser beam;
- and
- providing a sequence of pulses by detecting a reflex or transmission of the rotating laser beam while the laser beam scans over a pattern of transparent and reflective areas positioned at a peripheral area of the measurement device, the sequence of pulses corresponding to Cartesian coordinates of the system.
Dependencies are inferred from the claim text.