| 摘要 |
<p>PURPOSE:To provide a pulse NQR(nuclear quadrupole resonance) measuring equipment in which an NQR signal is extracted from a superposed signal of a measured NQR signal and the residual signal of exciting pulse. CONSTITUTION:The pulse NQR measuring equipment comprises a coil 13 generating a magnetostatic field, a driving power supply 14 therefor, as well as a high frequency coil 5 for exciting/detecting NQR. Furthermore, the measuring system is provided with a data processor 15 in order to store a reference data measured during generation of magnetostatic field and a data measured when the magnetostatic field is not generated. Thus stored reference data and measurement data are subjected to subtraction thus deciding the presence/absence of NQR signal. This constitution eliminates the influence of exciting pulse regardless of the frequency of detected NQR signal.</p> |
