Machine for measuring generally circular objects in cylindrical coordinates
US4800652A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1987 |
| Grant date | Jan 31, 1989 |
| Priority date | — |
| Expiry date | Sep 25, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B5/0002
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A machine measures an object of generally circular cross-section by superimposing on the subject a cylindrical coordinate system having five axes, namely a vertical measuring axis Z, three radial axes R0, R120, R240 emanating at a common point along the measuring axis Z, and a rotational axis .theta. having its center at the measuring axis Z. The machine includes an elevating unit which supports the object with its axis generally parallel to the measuring axis Z and is further capable of moving the object parallel to the measuring axis Z as well as rotationally about the measuring axis Z along the rotational axis .theta.. A measuring device monitors the linear position of the object along the axis Z while another measuring device measures the angular position of the object along the rotational axis .theta.. In addition, the machine includes three measuring heads, there being one along each radial axes R0, R120, and R240, and each measuring head includes a base, a slide which is mounted on the base for movement parallel to the radial axis of its head, and a probe carried by the slide. The probe has a displaceable probe tip which bears against a surface on the object. Each measuring …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.