One-dimensional measuring machine and computer-readable non-transitory medium
AssigneeMitutoyo Corporation
InventorRyunosuke Yano
Life of this patent
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Abstract
A one dimensional measuring machine includes a scale having graduations, a mover that has a light source configured to emit light to the graduations of the scale and a light receiving element configured to receive the light having passed through the scale from the light source, and can move along the scale, a light amount information detector that detects information regarding a light amount of the light emitted to the scale from the light source while the mover moves along the scale, and a contamination detector that detects a degree of contamination of the scale, based the information regarding the light amount of the light detected by the light amount information detector.
Claims10
A one dimensional measuring machine comprising:
- a scale having graduations;
- a mover that has a light source configured to emit light to the graduations of the scale and a light receiving element configured to receive the light having passed through the scale from the light source, and can move along the scale;
- a light amount information detector that detects information regarding a light amount of the light emitted to the scale from the light source while the mover moves along the scale;
- and
- a contamination detector that detects a degree of contamination of the scale, based the information regarding the light amount of the light detected by the light amount information detector.
A computer-readable, non-transitory medium storing a program that causes a computer to execute a process, the process comprising:
- detecting information regarding a light amount of light emitted to a scale from a light source while a mover moves along the scale, the mover having the light source configured to emit the light to graduations of the scale and a light receiving element configured to receive the light having passed through the scale from the light source;
- and
- detecting a degree of contamination of the scale, based the information regarding the light amount of the light.
Dependencies are inferred from the claim text.