Лазерное ультразвуковое обнаружение слабых дефектов на основе осциллятора Дуффинга

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Аннотация

Рассматривается проблема традиционных лазерных ультразвуковых методов, когда обнаружению поверхностных дефектов в металлических материалах часто препятствует шум, и предлагается новый подход, сочетающий лазерный ультразвук с осцилляторами Дуффинга для достижения высокого соотношения сигнал/шум для слабых сигналов от дефектов на металлических поверхностях. Используя чувствительность хаотической системы осциллятора Дуффинга к начальным условиям и его помехоустойчивость, мы можем точно определить местоположение слабых дефектов. Результаты моделирования подтверждают эффективность и стабильность этого метода для обнаружения поверхностных дефектов в металлических листах.

Об авторах

Пэн Хуэй

Университет Цзюцзян

Email: 270401671@qq.com
Китай, Цзюцзян, Цзянси

Цзэн Вэй

Университет Цзюцзян

Автор, ответственный за переписку.
Email: 270401671@qq.com
Китай, Цзюцзян, Цзянси

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