Non-destructive inspection method for high-pressure resistant pressure vessel for storing compressed hydrogen gas in automobile industry, involves providing spatial coordinates associated with sound signals as site-linked readings

摘要

The method involves aligning a camera (22) on a portion of a pressure vessel (1) and an acoustic pick-up (21') outside the pressure vessel and at predetermined distance from the pressure container. A data acquisition is started at a predetermined sampling, and image signals and sound signals are stored with a data processing device (3). A beamforming algorithm is applied to a part of the stored sound signals, for determining the associated sound signals from spatial coordinates. The spatial coordinates are provided and associated with the sound signals as site-linked readings. An independent claim is also included for a pressure vessel assessment procedure.