Automated angle encoder system for MRI apparatus
US5442858A · kind A · utility
14Cited by
7References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1993 |
| Grant date | Aug 22, 1995 |
| Priority date | — |
| Expiry date | Nov 23, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/567
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An automated angle encoder system for magnetic resonance (MRI) apparatus includes a removable encoder device placed on the orthopedic positioning device which is made entirely of nonmagnetic, nonmetallic materials and includes a glass disk which provides a GRAY output code to indicate absolute angle. The casing is made of Delrin plastic and the fiber optic cable includes nonmetallic TEFLON sheathing. Associated computer apparatus provides for an automatic input of an angle offset to provide for a neutral starting position and also for positive or negative angles of movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.