Flexible speed measuring device for Doppler ultrasonic detection and application of flexible speed measuring device

Abstract

The invention discloses a flexible speed measuring device for Doppler ultrasonic detection and application of the flexible speed measuring device, and belongs to the technical field of ultrasonic speed measurement. The flexible speed measuring device for Doppler ultrasonic detection comprises an ultrasonic phased array probe, a flexible packaging layer and a probe driving circuit; the flexible packaging layer wraps the ultrasonic phased array probe; the ultrasonic phased array probe consists of a plurality of ultrasonic transduction units in an array mode; the probe driving circuit changes theemission frequency of the ultrasonic transduction units in the ultrasonic phased array probe through sequential control, so that ultrasonic waves excited by the ultrasonic transduction units are superposed to form a new ultrasonic beam, and the ultrasonic beam is focused at the position of a fluid to be measured; and the ultrasonic phased array probe collects the reflected ultrasonic waves to obtain frequency data for speed measurement. According to the flexible speed measuring device, the ultrasonic focusing position can be regulated and controlled, frequency change information is obtained through array mapping transformation, the biological blood flow speed is measured based on a flexible ultrasonic array, and good comfort degree and large attachment angle freedom degree are achieved.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic velocity measurement, and more particularly relates to a flexible velocity measurement device for Doppler ultrasonic detection and its application. Background technique [0002] The traditional methods of measuring flow velocity include: injection tracer method, inject certain tracer substances (such as fluorescent substances, dyes, etc.) into the pipeline to be detected, and then measure the frequency of its movement; Adding a magnetic field, when there is fluid passing through the pipeline, an induced electromotive force is generated, so as to obtain the fluid velocity. However, due to the low space convenience rate and complicated operation of the traditional method, lossy measurement is required. [0003] With the continuous development of modern science and technology, many high-resolution, non-destructive and fast measurement methods have appeared in the fluid velocity measurement method...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides a flexible speed measuring device for Doppler ultrasonic detection and its application, thereby solving the technical problems of poor coupling effect between the probe angle and the measured target and complicated use

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