Ultrasonic imaging detection method for density distribution of high molecular polymer material

Abstract

The invention relates to an ultrasonic imaging detection method for density distribution of a high molecular polymer material. A mechanical movement platform control module is used for controlling and driving an ultrasonic probe to move; an ultrasonic signal emitting and collecting module is used for collecting signals, processing the signals and sending the signals to a measurement control soft module in real time; and a measurement control software module supports an interface to display measurement state. The ultrasonic probe is used for scanning a plurality of measurement points and when the density of the measurement points changes, the ultrasound transmission speed of the measurement point also changes. By calculating the ultrasound transmission speed of each measurement point, the density value and the density distribution cloud picture of the high molecular polymer material are obtained. By adopting the method, the measurement result can be displayed in real time and the measurement accuracy is high.

Description

technical field [0001] The invention relates to a material detection method, in particular to an ultrasonic imaging detection method for the density distribution of high molecular polymer materials. Background technique [0002] In the field of aerospace, in order to increase the payload, high-strength lightweight polymer materials have been used to a certain extent. In the harsh working environment of high temperature and high pressure, the density value and uniformity of density distribution of polymer engineering materials are directly related to its mechanical strength, uniformity of heat dissipation and fatigue life. At present, the density measurement of polymer materials generally adopts the balance weighing method: put the material in water, obtain its volume according to Archimedes' theorem; then use a balance to weigh its mass, and then convert it into an average density. Although this method is simple, it is difficult to obtain the uniform density distribution ch...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problem that it is difficult to detect the uniform density distribution of high molecular polymer materials in the field of aerospace, and proposes an ultrasonic imaging detection method for the density distribution of high molecular polymer materials. The density value of the material and its density distribution map can be used to detect the uniformity of the density distribution of the polymer material

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