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总览 评价 张志镇 1,* , 朱立 1, , 刘星光 1, , 周睿 2, ( 1、 中国矿业大学理学院; 2、 中国矿业大学矿业工程学院; ) 摘要: 为平均由信号随机性引起的误差以提高定位精度,本文借助最小二乘思想提出新的多探头定位方法,并用PCI-2系统在边长为6
张志镇1,*, 朱立1,, 刘星光1,, 周睿2,
(
1、中国矿业大学理学院; 2、中国矿业大学矿业工程学院; )
摘要:
为平均由信号随机性引起的误差以提高定位精度,本文借助最小二乘思想提出新的多探头定位方法,并用PCI-2系统在边长为60cm的方石板试件上以铅笔芯折断产生信号为模拟源进行了试验考察,结果表明利用基于最小二乘法的定位方法能够进行平面定位,并取得较好的精度。
关键词:
声发射;最小二乘法;源定位
ZHANG Zhi-zhen1,*, ZHU Li2,, LIU Xing-guang2,, ZHOU Rui3,
(
1、School of Sciences, China University of Mining and Technology; 2、School of Sciences, China University of Mining and Technology, Xuzhou, Jiangsu; 3、School of Mining and Technology, China University of Mining and Technology, Xuzhou, Jiangsu; )
Abstract:
To average the error caused by randomicity of signal to improve the locating precision, a new locating method based on the Least Squares Method was brought forward. And using PCI-2 systerm produced by PAC corp. in US, experimentation was done on a flagstone, which has 35mm-long side, and the result show that Acoustics Emission Source Localization Based on the Least Squares Method is feasible and the error became less.
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