| 摘要 |
The method is characterised in that an examined sample is double acquired with different echo times. Afterwards is created the Fourier transform ratio of the both signals by standard way. In contrast to the state of the art the phase is not proportional to value of echo time, but to difference of both echo times values. By suitable choice of both values the whole measuring scope is displaying in one phase period and its measured values can be considered as absolute. The advantage of the method is extension of measuring scope and effective suppression periodicity of phase with possibility absolute measuring. Mentioned principle can be used as main measuring method for samples examination or as a control method, which identifies absolute phase value, which can be afterwards measured by other method with higher precision.
|
