摘要
本文提出了一种快速检测声学参数的方法———用计算机软件自动计算混凝土内部缺陷特征参数的快速算法 .该方法与传统的超声仪测读法相比 ,具有自动、快速、方便、准确、稳定等特点 ;与文献 [2 ]介绍的循环比较法相比 ,其运算速度更快、检测精度更高、稳定性更好 .实验结果表明 ,该算法对超声接收波的首波起点的平均误判率为 4% ,较之循环比较法提高 1 8% .
A fast detection method for ultrasonic parameters, which is used in calculating features of concrete flaws by means of computer softwares, is presented. Compared with the traditional method, which wholly depends on the ultrasonic detector. This algorithm is automatic, saster, easier to use, more accurate and stable; Compared with the Cycle Compare Method in reference 2, it has quicker calculating speed, higher accuracy and better stability. With experiment, it is shown that the average rate of judgement errors for starting points of first waves with this method is 4%, an increase by 18% compared with the Cycle Compare Method.
