Study on Dynamics of the Bionic Mechanical Coupled Diaphragms for Sound Source Localization

Abstract:

Sound source localization is always of great value in many engineering applications. In recent years, studies on orientation mechanisms of the auditory systems and research of bionic structures of subminiature creatures, especially of the parasitoid fly Ormia Ochracea which has a remarkable ability to detect the direction of the incident sound stimulus despite of its tiny body size, may provide preferable solutions for the miniaturization of acoustic localization structure. In this paper, the bionic acoustic sensing device are set up and taken as the research object to find feasible orientation mechanisms, and the dynamics of the bionic mechanical coupled diaphragms are analyzed. These works provide the basis for the manufacture of experimental acoustic sensing device. In the last part of this paper, experiments on bionic acoustic sensing device are conducted after the test system has been established. The measured data and the analyses based on the measured data demonstrate that the modeling methods and theoretical study in this paper are correct.

• Periodical: Advanced Materials Research (Volumes 199-200)
• Pages: 1010-1013
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.199-200.1010
• Online since: February 2011
• Authors: Qing Sheng Wang, Xiao Hang Liu, Xin Lei Zhu, Zhu Shi Rao
• Keywords: Acoustic Localization, Biomechanics, Biomimetic Structure, Mechanical Coupling

References

[1] Robert D., Willi U. The histological architecture of the auditory organs in the parasitoid fly Ormia Ochracea. Cell tissue Res, 2000, 301: 447-457.

DOI: 10.1007/s004410000257

[2] D. Robert, R.S. Edgecomb, M.P. Read, R.R. Hoy. Tympanal hearing in tachinid flies (Diptera, Tachinidae, Ormiini): the comparative morphology of an innovation.

DOI: 10.1007/s004410050604

[3] Miles, R. N., Robert D., Hoy R.R., Mechanically Coupled Ears for Directional Hearing in the Parasitoid Fly Ormia Ochrecea, J. Acoust. Soc. Am., 1995, 98: 3059-3070.

DOI: 10.1121/1.413830

[4] Miles, R.N.; Su, Q.; Cui, W.; Shetye, M.; Degertekin, F.L.; Bicen, B.; Garcia, C.; Jones, S.; Hall, N. A low-noise differential microphone inspired by the ears of the parasitoid fly Ormia ochracea [J]. Journal of the Acoustical Society of America. 2009, v 125, n 4, p.2013-(2026).

DOI: 10.1121/1.3082118

[5] Miles R.N. Novel Biologically-inspired directional microphones. Echo, 2007, 17(2).

[6] CUI Weili, Bicen B, Hall N, Jones S. A, Degertekin F. L, Miles R.N. Optical sensing in a directional MEMS microphone inspired by the ears of the parasitoid fly, Ormia ochracea, IEEE, MEMS2006, Istanbul, Turkey, 2006: 22-26.

DOI: 10.1109/memsys.2006.1627874

[7] Saito A, Ono N, Ando S. Micro gimbal diaphragm for sound source localization with mimicking Ormia Ochracea. Proceedings of the 41st SICE Annual Conference, Aug. 5-7, 2002, Osaka, pp.1640-1643.

DOI: 10.1109/sice.2002.1195733