Method and apparatus for measuring dynamic imbalance of sphere
US5705740A · kind A · utility
4Cited by
4References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 11, 1996 |
| Grant date | Jan 6, 1998 |
| Priority date | — |
| Expiry date | Jan 11, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M1/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sphere is supported in a floating condition by a pneumatic bearing so as to be rotated by compressed air sprayed from a nozzle. The sphere has a single point magnetized on its surface, and is placed on its rotating axis. If the sphere has a dynamic imbalance, the single point is subjected to pressesion around its inertia axis, the locus and displacement velocity of which are measured by the Hall elements arranged in an arc line around the pneumatic bearing, thereby obtaining the dynamic imbalance of the share.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.