Measuring unit for determining dimensions of test pieces, preferably of hollow bodies, in particular, of bores of workpieces, and method for measuring such dimensions
US6088105A · kind A · utility
39Cited by
5References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1999 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Apr 2, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measuring unit for determining dimensions of workpieces has an endoscope unit with two apertures through which identical linear light patterns are projected onto a surface of the workpiece. The identical linear light patterns create a moire pattern on the surface. The endoscope unit has at least one camera head for detecting the moire pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.