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![]() ![]() ![]() The following features are provided:
The videos below illustrates detection of some macro-defects in the honeycomb panels with the metallic (parallel sides) and composite (CFRP, non-parallel sides) skin correspondingly using ISONIC 3510 instrument Another vide shows checking bonding of the FRP plate to honeycomb panel with the use of ISONIC 3510 unit For the detection of the imperfections in the fine structure of honeycomb panels the quality grades of the material may not be distinguished surely based on the traditional pulse echo technique as the deviation between the typical parameters (amplitude, time of flight) of ultrasonic signals such as, for example, back wall echo, is not sufficient The solution for the said problem ISONIC 3510, ISONIC 2010, and ISONIC 2009 UPA Scope instruments is based on the frequency domain signal analysis being the standard feature of both the PA and conventional modality functioning of the said equipment Whilst running the instrument in the PA modality the FFT function is applicable to every focal law’s A-Scan obtained at the calibration, inspection, and evaluation stage bringing the speed and reliability of the material characterization to the significantly higher level: for every frequency domain graph (FFT graph) the signal’s center frequency and bandpass at the desired level are determined automatically and the corresponding mapping and real time imaging is available The video below illustrates the inspection of honeycomb panel with composite skin when the FFT is applied to the back wall echo and the FD B-Scan (Frequency Doman B-Scan) image is formed for the entire PA probe coverage providing very clear pitch-size-resolution distinguishing between the different quality areas while the regular B-Scan imaging doesn’t allow the same rapidness and simplicity of interpretation At last the video below illustrates very clear and rapid detection of the areas of the aluminum skin de-bonded from honeycomb with use of FD B-Scan imaging Note: In order to accelerate the data stream the videos above are linked to the Youtube. In case the YouTube may not be accessed from your location please use the links below
DOWNLOAD AND PLAYBACK THE EXEMPLARY INSTRUMENTS FILES
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