...Haoming Huang; Wendong Zhang; Jiangong Cui; Xiaoping Zhai; Wang Yajie; Guojun Zhang; Renxin Wang; Yuhua Yang; Yonghua Wang Purpose This paper aims to propose an acoustic sensor for cascaded dual microfiber knot resonators (DMKRs) based on the Vernier effect to amplify the free spectral range (FSR...

... by the sound wave in the X/Y direction is as follows: Acoustic sensor MEMS UUV Underwater acoustics Underwater platforms Unmanned underwater vehicles (UUVs) are at the forefront of underwater mapping and environmental monitoring, capable of autonomously collecting and recording underwater...

..., this study aims to design, simulate, fabricate and test a bidirectional acoustic sensor having two cantilever structures coated with piezoresistive material for sensing has been designed, simulated, fabricated and tested. Design/methodology/approach The structure is a piezoresistive acoustic pressure...