METHOD OF DETERMINING DENSTITY GRADIENT OF MEDIUM WITH FREQUENCY DISPERSION

摘要

1. A METHOD FOR DETERMINING GRADZY-ENT OF THE DENSITY OF THE MEDIUM WITH FREQUENCY DISPERSION, which consists in probing the medium with radio pulses with a modulation of the filling frequency according to a linear law, characterized in that, in order to improve the accuracy of measurements, in each pair of radio pulses a reverse frequency and pulse frequency variation is performed, and in the course of the frequency and the frequency of the pulse and the frequency of the pulses are measured. preserving the magnitude of the frequency deviation, while the duration of the radio pulses is changed until the equal durations of the radio pulses reflected by the medium and the medium passed are reached, and at this moment the change in duration as the difference in the duration of the pair of probing radio pulses and the measured density gradient of the medium determined from the measured value of the change in duration. 2. Method POP1, characterized in that, when the medium reflects radio pulses, the duration of the probing radio pulses is changed by increasing the radio pulse duration with a linearly falling filling frequency and decreasing the radio pulse duration with a linearly increasing (L filling frequency until the equal duration of radio pulses reflected by the medium is reached. 3 Method POP1, characterized in that during the passage of radio pulses through the medium, the duration of the probing radio 35 pulses is changed by decreasing the duration of the radio pulse incident linearly chas00 00 totoy filling and increasing the duration radio pulse lineyno.- 00 with an increasing frequency until the filling equal durations radio pulses, passed through the medium.