the invention belongs to the field of medical devices, in particular to methods of ultrasonic \u044d\u0445\u043e\u043b\u043e\u043a\u0430\u0446\u0438\u0438 internal organs, and can be used with \u0438\u0441\u0442\u0435\u043c\u0430\u0445 medical diagnosis.the technical result provided by the set of attributes, is to improve the quality of diagnosis delayed development of fetus by improving the accuracy of computing \u0447\u0441\u0441\u043f by automatic installation position and size measuring doppler volume in accordance with the situation of fetal hearts in mr. \u043b\u0443\u0431\u0438\u043d\u0435 sensingthe control parameters of the signals from all the sensing allows to exclude the error detection signal, heart rate and follow-up lodges the main signal.in the method, an ultrasonic signal radiation is a series of pulses, the frequency of repetition of the pulses in the series is equal to the frequency \u0443\u043b\u044c\u0442\u0440\u0430\u0437\u0432\u0443\u043a\u043e\u0432\u043e the signal and frequency repetition of the series of pulses is determined depending on the maximum depth of sensing, and increased signal performed in the cha \u0441\u0442\u043e\u0442 agreed with the length of the series of radiation with the frequency sampling rate.the strip of the signal in the spectrum of the doppler signal at the zero frequency, by counting the accumulation of complex s signal in accordance with the position and size of the measurement of the depth sensing perform filtering in doppler signal given the cha \u0441\u0442\u043e\u0442,by searching for peaks \u0430\u0432\u0442\u043e\u043a\u043e\u0440\u0440\u0435\u043b\u044f\u0446\u0438\u043e\u043d\u043d\u043e\u0439 functions and determine the distance between them, calculate the doppler shift on the basis of computing the difference of phases between \u0434\u043e\u043f\u043b\u0435\u0440\u043e\u0432\u0441\u043a\u0438\u043c signal from a consecutive series of ultrasonic signal, the width of spectrum of the doppler frequency and
