X- And y-axis driver for rotating microspheres
US4157490A · kind A · utility
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1References
5Claims
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Assignee
Inventor
Key dates
| Filing date | May 17, 1978 |
| Grant date | Jun 5, 1979 |
| Priority date | — |
| Expiry date | May 17, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/951
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for precise control of the motion and position of microspheres for examination of their interior and/or exterior. The apparatus includes an x- and y-axis driver mechanism controlled, for example, by a minicomputer for selectively rotating microspheres retained between a pair of manipulator arms having flat, smooth end surfaces. The driver mechanism includes an apertured plate and ball arrangement which provided for coupled equal and opposite movement of the manipulator arms in two perpendicular directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.