Measurement device and process for determining the straightness of hollow cylindrical or hollow conical bodies and their orientation relative to one another
US7312864B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 2005 |
| Grant date | Dec 25, 2007 |
| Priority date | — |
| Expiry date | Jan 4, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/272
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Device for determining the straightness of hollow cylindrical surfaces and partial surfaces thereof, and the three-dimensional orientation of several hollow cylindrical surfaces or partial surfaces with reference to at least one of axial parallel offset and angular offset relative to one another. A transmitting/receiving device and a reflector/receiving device are provided which are swingable essentially without play over a respective hollow cylindrical surface or partial hollow cylindrical surface. The transmitting/receiving device has at least one transmitter for emitting light beams and at least one receiver for receiving and for measuring an incidence position of the light beams. The reflector/receiving device has at least one partially-reflective optical element for partial reflection of light beams and at least one receiver for receiving and for measuring an incidence position of a portion of the light beams. The relationship between circular lines produced on the detectors in different phases of measurement is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.