VERFAHREN ZUR BESTIMMUNG DER ORTSLAGE VON BEWEGLICHEN GRENZEN ZWISCHEN BIOLOGISCHEN GEWEBEN UND EINRICHTUNG ZU DESSEN DURCHFUEHRUNG

摘要

The method of the invention consists in that the biological tissues under study are irradiated with an electro-magnetic flux in the form of radio-frequency pulses having a central spectrum frequency of from 0.5 to 10 GHz, whereupon a spatial position of the moving boundary between the biological tissues is determined from the phase shift of the return signal. The device for carrying the method into effect comprises a probing pulse shaper (1), a transmitting antenna (2), a receiving antenna (3), a return signal measuring unit (4) incorporating a stroboscopic range sweep detector (6) connected to the receiving antenna (3), and a pulse recording unit (5) connected to the measuring unit (4). The radiation emanating from the antenna 2 may be polarized to suit the biological tissue under study. <IMAGE>