Small-curvature radius complex curved surface intelligent ultrasonic thickness measurement system

Abstract

The invention discloses a small-curvature radius complex curved surface intelligent ultrasonic thickness measurement system. The system comprises an upper computer, a digital acquisition unit and a display module, wherein the upper computer receives a digital signal of the digital acquisition unit and outputs the received digital signal to the display module for display; a signal input end of thedigital acquisition unit is connected with an ultrasonic transmitting/receiving device; the ultrasonic transmitting/receiving device transmits an ultrasonic signal to a tested object and receives theultrasonic signal returned by the tested object; and the digital acquisition unit converts the ultrasonic signal returned by the tested object into a digital signal and outputs the digital signal to the upper computer. The system realizes automatic calculation processing and digital display of the thickness of the tested object through a control program. In the system, an industrial personal computer (PC) is adopted. The system has a simple structure and high reliability and is low in cost; the measurement accuracy for the measurement of the tested object with the thickness of between 0.5 and4mm reaches 0.01mm; the system has high measurement accuracy and high speed; and the investment in measurement personnel is greatly reduced.

Description

technical field [0001] The invention relates to the field of computer digital measurement, in particular to an intelligent ultrasonic thickness measurement system for complex curved surfaces with a small radius of curvature that can realize thickness measurement of 0.5 mm to 4 mm through ultrasonic waves. Background technique [0002] Ultrasonic testing is an important means in the field of nondestructive testing, and it is one of the most commonly used testing methods at home and abroad. For the measurement of the thickness of the measured object, especially the measurement of the thickness of the measured object with complex curved surface, it is the most effective and accurate to use ultrasonic as the measurement method. Ultrasonic thickness measuring devices manufactured using this principle are widely used in various fields such as petroleum, chemical industry, metallurgy, shipbuilding, aviation, aerospace, etc., but most domestic digital display equipment have limited ...

AI Technical Summary

Problems solved by technology

Ultrasonic thickness measuring devices manufactured using this principle are widely used in various fields such as petroleum, chemical industry, metallurgy, shipbuilding, aviation, aerospace, etc., but most domestic digital display equipment have limited measurement ranges. Accuracy is far below the requirements

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