Detection of early-stage bolt loosening via second-order acoustic micro-perturbations with PZT transducers
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Sensors Journal"
DOI: 10.1109/jsen.2025.3636381
Abstract: Bolts serve as a fundamental fastening element in numerous structural systems, and the timely identification of their loosening is essential for maintaining operational safety. Conventional ultrasound-based detection techniques often suffer from signal saturation issues, which… read more here.
Keywords: order acoustic; pzt transducers; acoustic micro; early stage ... See more keywords
H-shaped acoustic micro-resonator-based quartz-enhanced photoacoustic spectroscopy.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.449822
Abstract: An H-shaped acoustic micro-resonator (AmR)-based quartz-enhanced photoacoustic spectroscopy (QEPAS) sensor is demonstrated for the first time. The H-shaped AmR has the advantages of easy optical alignment, high utilization of laser energy, and reduction in optical… read more here.
Keywords: shaped acoustic; spectroscopy; micro resonator; based quartz ... See more keywords