28 Research on Acoustic Emission Technology for Tank Floor …
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Fig. 28.13 Event plane
location of guard sensor
under global guard
X Distance/mm
Y Distance/mm
Fig. 28.14 Event stereo
location of guard sensor
under global guard
that the function of the guard sensor is not to block the signal acquisition of the
main sensor, but to block the positioning of the main sensor. Therefore, it is not
recommended to use the area positioning method when using the guard sensor.