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Wave Propagation

10、 Wave Propagation Definition Wave propagation describes how acoustic emission waves travel through a material from the source to the sensor. Explanation The propagation behavior depends on material properties, geometry, and frequency, affecting s

Time Difference of Arrival (TDOA)

Time Difference of Arrival (TDOA) Definition Time Difference of Arrival (TDOA) is the difference in signal arrival times at multiple sensors. Explanation It is used to calculate the location of an acoustic emission source. Key Notes Basis of source lo

Source Location

9、 Source Location Definition Source location is the process of determining the origin of an acoustic emission event using multiple sensors. Explanation It is typically based on the difference in signal arrival times and requires accurate wave veloc

Wave Velocity

Wave velocity is the speed at which acoustic emission waves propagate through a material.

Sensor Coupling and Installation for Acoustic Emission Monitoring

Sensor Coupling and Installation for Acoustic Emission Monitoring RSensor coupling and installation refer to the methods used to attach acoustic emission (AE) sensors to a structure and ensure efficient transmission of elastic waves from the material

Attenuation

Attenuation is the reduction in acoustic emission signal amplitude as waves propagate through a material.

Triangulation

Triangulation is a source location technique that determines the position of an AE source using multiple sensors.

Sensor Spacing

Sensor spacing is the distance between adjacent AE sensors in a monitoring system.

Sensor Array

A sensor array is a group of multiple AE sensors arranged to monitor a structure simultaneously.

Coupling

Sensor coupling is the method of ensuring efficient acoustic transmission between an AE sensor and the test surface.