2020
DOI: 10.1177/1550147720940650
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Novel method for detection of void defects under track slabs using air-coupled ultrasonic sensors

Abstract: Void defects under track slabs are the main danger affecting the safe operation of high-speed railways. In the short high-speed railway maintenance periods, China’s high-speed railway line maintenance operations must quickly and dynamically determine void defects under track slabs that are in service without contact. However, the detection of void defects under track slabs still mainly relies on the manual inspection and flaw detection by railway workers during the railway maintenance period. If the defects ar… Show more

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