The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2004
Filed:
May. 03, 2001
System and method for the detection and propagation measurement of flaws in a component or structure
Kenneth John Davey, Perth, AU;
Structural Monitoring Systems, Ltd., West Perth, AU;
Abstract
A system for continuously monitoring the integrity of a structure includes a sensor pad having a surface . The surface is provided with a set of first channels and interspersed second channels . Surface is sealed onto the surface of structure so that the channels together with surface form respective sets of first and second cavities and . The first cavities are placed in fluid communication with a vacuum source via a third channel . The second cavities are vented to the atmosphere via a fourth channel , through hole , and conduit . A high impedance is placed in series between the vacuum source and the first cavities . A differential pressure transducer is connected across the high impedance and monitors for change in vacuum condition between the vacuum source and the vacuum in the cavities . If a fault were to develop in structure opening onto surface and propagate to form a fluid communication path between one of the cavities and adjacent cavity there will be a change in the vacuum condition of the cavity which will be detected by the transducer