Release sensor - メーカー・企業と製品の一覧

You can tell the condition by listening to the sound!

Keywords: Acoustic Emission, Material Mechanics, Non-Destructive Testing, Fracture Analysis, Composite Materials, Biological Sounds, Frequency Analysis

Acoustic Emission (AE) technology is a non-destructive testing method that detects not only sounds from cracks, friction, and leaks within materials but also biological sounds, such as joint sounds. It is used in various fields including construction, civil engineering, manufacturing, medicine, and material evaluation. The AE method detects sounds (AE sounds) generated within materials using AE sensors installed on the surface, similar to the relationship between earthquakes and seismometers. Therefore, like earthquakes, information such as the location of AE sound generation, sound intensity, and sound frequency can be obtained from multiple seismometer data. The frequency characteristics of AE waveforms are said to represent the types of damage, and our laboratory conducts evaluations of damage accumulation behavior primarily focused on carbon fiber reinforced composites (CFRP). By interpreting the conditions under which damage occurs not only from a materials mechanics perspective but also from a thermodynamic perspective, we also perform residual life evaluations based on entropy assessment.