Invention Grant
- Patent Title: Specially designed phased array transducer for the inspection of fastener holes and adjacent structure without the removal of the fastener
-
Application No.: US14818138Application Date: 2015-08-04
-
Publication No.: US09945817B2Publication Date: 2018-04-17
- Inventor: William H. Pember , Kevin L. Boyd , Kevin H. Cook , Chris Famighetti , Robert D. Fidnarick , John Munyak , John D. Weir
- Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION
- Applicant Address: US VA Falls Church
- Assignee: Northrop Grumman Systems Corporation
- Current Assignee: Northrop Grumman Systems Corporation
- Current Assignee Address: US VA Falls Church
- Agency: Shumaker, Loop & Kendrick, LLP
- Agent John A. Miller
- Main IPC: G01N29/26
- IPC: G01N29/26 ; G01N29/06 ; B64F5/60

Abstract:
A phased array transducer for inspecting a fastener hole and adjacent structure to identify defects and determine hole integrity without removing the fastener from the hole. The phased array transducer includes a plurality of transducer elements, where one of the transducer elements is used to align the transducer to the hole, one group of the remaining transducer elements inspects the entire thickness of the structure at one side of the fastener and another group of the remaining transducer elements inspects the entire thickness of the structure at an opposite side of the fastener.
Public/Granted literature
Information query