Guojie Wu;Xinyu Zhang;Zhenfeng Gong;Pengcheng Tao;Wei Peng;Qingxu Yu;Liang Mei
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引用次数: 0
Abstract
In this article, a high-performance fiber optic polyethylene terephthalate (PET) cantilever acoustic transducer (PET-CAT) is reported for weak acoustic signal sensing. The PET cantilever is manufactured by laser marking machines. The Young modulus of the PET-CAT used is roughly 40 times lower than that of conventional stainless-steel cantilever, resulting in higher acoustic pressure detection sensitivity. The theoretical and simulation analysis has been carried out to design the PET-CAT for high-performance acoustic sensing. Experiments have shown that the sensitivities of the PET-CAT reach up to 8004.6 nm/Pa at 2823 Hz and 605 nm/Pa at 3300 Hz. The equivalent noise sound pressure (ENSP) is
$2.48~\mu $
Pa/Hz
$^{\text {1/2}}$
at 3300 Hz. The proposed PET-CAT, featuring compact size, low cost, simple processing, chemical stability, high sensitivity, and strong resistance to electromagnetic interference, is suitable for high-frequency weak signal long-distance sensing.
期刊介绍:
The fields of interest of the IEEE Sensors Journal are the theory, design , fabrication, manufacturing and applications of devices for sensing and transducing physical, chemical and biological phenomena, with emphasis on the electronics and physics aspect of sensors and integrated sensors-actuators. IEEE Sensors Journal deals with the following:
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