Magnetic resonance imaging apparatus and apparatus for measuring radio frequency output for the same
US9933498B2 · kind B2 · utility
0Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2017 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Aug 18, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/7203
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for measuring radio frequency output for a magnetic resonance imaging apparatus includes a directional coupler, a signal controller and a converter. The directional coupler is variable in degree of coupling, and configured to attenuate a radio frequency signal which is generated in a radio frequency signal generator and amplified in a radio frequency power amplifier. The signal controller is configured to control the degree of coupling of the directional coupler. The converter is configured to perform a digital conversion of the radio frequency signal from the directional coupler so as to output a digital signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.