发明名称 |
BOND STRENGTH MEASUREMENT OF COMPOSITE PANEL PRODUCTS |
摘要 |
<p>The invention is a method for the on-line nondestructive determination of the internal bond strength of composite panel products. The method involves impinging an ultrasound pulse against the panel by a first transducer and receiving a transmitted pulse at a second transducer. The received signal strength, temperature and panel thickness are entered into an algorithm from which the internal bond may be calculated. Preferably the receiving transducer is located on the opposite side of the panel and displaced somewhat from the first transducer. The inclusion of temperature and panel thickness as independent variables greatly improves the accuracy over that available from uncorrected ultrasound testing.</p> |
申请公布号 |
EP0322446(B1) |
申请公布日期 |
1992.02.19 |
申请号 |
EP19880906621 |
申请日期 |
1988.05.11 |
申请人 |
WEYERHAEUSER COMPANY |
发明人 |
SHEARER, DWAYNE, M.;BEETHAM, RICHARD, C.;BEALL, FRANK, C.;RODGERS, JOHN, M. |
分类号 |
G01N29/12;G01N29/00;G01N29/04;G01N29/24;G01N33/46;G05B19/418 |
主分类号 |
G01N29/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|