acoustics and vibration complex sensing unit for defect of plant and defect diagnostics system for high pressure pipe

摘要

The present invention relates to a sensing unit which sensitively senses low-frequency acceleration signals and high-frequency acoustic emission signals generated from an internal structure for a large industrial facility in real time in a minimum quantity, The degree of defect, and the position of the defect, and provides the result of the calculation to the user in various ways on / off-line. ; More specifically, the present invention relates to a waveguide structure comprising: a plurality of waveguides fixed at different positions of an internal structure for an industrial facility; A waveguide bridge of the same material physically connecting the plurality of coating tubes; A low frequency sensing means connected to the wave guide bridge for sensing an acceleration signal propagated from the internal structure; And a high frequency sensing means connected to the waveguide bridge and sensing an acceleration signal propagated from the internal structure. The present invention also provides an acoustic vibration hybrid sensing unit for detecting faults in an industrial facility, System.