Product Description
Modal Acoustic Emission (MAE) Testing
Modal Acoustic Emission (MAE) is a non-destructive testing method used to evaluate the structural integrity of Self-Contained Breathing Apparatus (SCBA) cylinders, particularly those constructed from composite materials. By detecting and analyzing acoustic signals generated by internal flaws such as fiber breakage or delamination during controlled pressurization, MAE enables condition-based assessments beyond conventional inspection techniques. MAE testing allows SCBA cylinders to have their service life extended beyond the standard 15 years, in 5-year increments up to a maximum of 30 years, provided all requalification criteria are met. The MAE process is compliant with relevant standards and regulations established by ASME, NBIC, ISO, PHMSA/DOT, and Transport Canada, ensuring rigorous testing, documentation, and safety across North American jurisdictions.
Modal Acoustic Emission (MAE) testing process:
SCBA cylinders begins with a visual inspection to identify any visible damage or labeling issues. Approved cylinders are fitted with acoustic sensors, and the system is calibrated to ensure accurate signal detection. The cylinder is then pressurized in a controlled environment while acoustic emissions are monitored in real time. Signals produced by potential structural defects, such as fiber breaks or delamination, are recorded and filtered using modal analysis techniques to remove background noise. The data is evaluated against predefined acceptance criteria to determine the cylinder’s structural integrity. Results are documented in a test report, and the cylinder is marked as passed or failed based on the findings.
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