Abstract
In this paper, an acoustic filter with low frequency bandstop and a broadband (0.3–3 kHz) bandstop filter are presented. In this paper, control algorithm and related equipment are integrated with piezoelectric ceramic thin film, ADC and FPGA to study a system which can mix acoustically in the process of acoustic transmission and only allow one-way transmission of sound waves.
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Acknowledgment
This work is supported by the National Natural Science Foundation of China (Grant No. 61525401, 61774049), the Shanghai Pujiang Talent Science funding (Grant No. 16PJD008), the Shanghai international co-operation Science funding (No. 16550720600), the Program of Shanghai Academic/Technology Research Leader under Grant 16XD1400300.
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© 2020 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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Zhao, P., Wang, J., Gu, X., Suo, K., Chen, Y., Zeng, X. (2020). Acoustic Frequency Division Based on Active Metamaterial: An Experimental Demonstration of Acoustic Frequency Halving. In: Li, B., Zheng, J., Fang, Y., Yang, M., Yan, Z. (eds) IoT as a Service. IoTaaS 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 316. Springer, Cham. https://doi.org/10.1007/978-3-030-44751-9_6
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DOI: https://doi.org/10.1007/978-3-030-44751-9_6
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