A Flexible 360-Degree Thermal Sound Source Based on Laser Induced Graphene
AbstractA flexible sound source is essential in a whole flexible system. It’s hard to integrate a conventional sound source based on a piezoelectric part into a whole flexible system. Moreover, the sound pressure from the back side of a sound source is usually weaker than that from the front side. With the help of direct laser writing (DLW) technology, the fabrication of a flexible 360-degree thermal sound source becomes possible. A 650-nm low-power laser was used to reduce the graphene oxide (GO). The stripped laser induced graphene thermal sound source was then attached to the surface of a cylindrical bottle so that it could emit sound in a 360-degree direction. The sound pressure level and directivity of the sound source were tested, and the results were in good agreement with the theoretical results. Because of its 360-degree sound field, high flexibility, high efficiency, low cost, and good reliability, the 360-degree thermal acoustic sound source will be widely applied in consumer electronics, multi-media systems, and ultrasonic detection and imaging. View Full-Text
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Tao, L.-Q.; Liu, Y.; Ju, Z.-Y.; Tian, H.; Xie, Q.-Y.; Yang, Y.; Ren, T.-L. A Flexible 360-Degree Thermal Sound Source Based on Laser Induced Graphene. Nanomaterials 2016, 6, 112.
Tao L-Q, Liu Y, Ju Z-Y, Tian H, Xie Q-Y, Yang Y, Ren T-L. A Flexible 360-Degree Thermal Sound Source Based on Laser Induced Graphene. Nanomaterials. 2016; 6(6):112.Chicago/Turabian Style
Tao, Lu-Qi; Liu, Ying; Ju, Zhen-Yi; Tian, He; Xie, Qian-Yi; Yang, Yi; Ren, Tian-Ling. 2016. "A Flexible 360-Degree Thermal Sound Source Based on Laser Induced Graphene." Nanomaterials 6, no. 6: 112.
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