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US 8,756,997 B2Granted
Sonic resonator system which applies a rarefaction wave to a composite structure at a specific location to test bond strength
AssigneeSonipulse, Inc.
InventorsWarren Questo, Robert W. Cribbs, Carl W. Hennige
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Abstract
Disclosed herein is a sonic resonator system for use in testing the adhesive bond strength of composite materials. Also disclosed herein are a method of calibrating the sonic resonator system to work with a particular composite bond joint, and a method of non-destructive testing the “pass-fail” of the bonded composite bond strength, based on a required bond strength.
Claims13
A sonic resonator system which is used to apply a power pulse in the form of a rarefaction wave at a selected location within a composite structure, wherein said system comprises:
- a computer containing software algorithms for signal reconstruction and a wave form generator;
- a digital-to-analog converter which is in communication with said wave form generator;
- a power amplifier;
- a sonic resonator assembly which transmits sonic energy into said composite structure, where said sonic energy includes a power pulse of a wide-bandwidth rarefaction wave generated using input from said wave form generator;
- and a removable calibration sensor which enables said resonator system to be calibrated to work in combination with a particular composite material, and wherein said calibration sensor is located in series after said sonic resonator assembly and after a location at which a sample of composite material is placed between said sonic resonator assembly and said calibration sensor, for purposes of calibration of said sonic resonator system.
2 more elements
Dependencies are inferred from the claim text.