Active acoustic control in quiet gradient coil design for MRI
US5990680A · kind A · utility
14Cited by
2References
19Claims
0Family size
Inventor
Key dates
| Filing date | May 13, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | May 13, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/3854
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Acoustically controlled magnetic coils comprise first and second electrical conductors which are mechanically coupled by a block of material of defined acoustic transmission characteristics which holds the conductors a predetermined distance apart. The conductors are supplied with currents of different and variable amplitudes and different and variable relative phases both of the features being determined by the acoustic characteristics and by the geometry and predetermined distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.