Apparatus and method for detecting mass eccentricity
US6085578A · kind A · utility
3Cited by
2References
9Claims
0Family size
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Key dates
| Filing date | May 22, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | May 22, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M1/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A spherical object is positioned on a rotation stage, the rotation stage is rotated, and a deviation detector detects whether the spherical object deviates from the rotation stage or not. A rotation frequency of the rotation stage when the object deviates from the rotation stage is detected by a rotation frequency detector, and a judgement system judges whether the object is mass eccentric or not, comparing the detected rotation frequency with a predetermined rotation frequency which is set beforehand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.