Measuring apparatus and accuracy analyzing apparatus having the same
US7096751B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Apr 19, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B5/25
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measuring apparatus 2 comprises: a base 10 fixed onto the rotary table 83; a rotational angular position detector 35 having first and second members 36 and 37 mounted in relatively rotatable fashion about a preset rotational center axis, one member being provided with a scale and the other with a reading device, wherein the first member 36 is mounted fixedly on the base 10; a restraining mechanism 55 which engages with the second member 37 of the rotational angular position detector 35 and thereby restrains rotation of the second member 37, while allowing the base 10 and the rotational angular position detector 35 to move in vertical direction; and a ring-shaped detection member 49 mounted perpendicularly on the base 10 by orienting center axis at right angles to the upper surface of the rotary table 83 and accommodating therein the rotational angular position detector 35.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.