title: Fly-ear inspired micro-sensor for sound source localization in two dimensions.
abstract: Inspired by the hearing organ of the fly Ormia ochracea, a miniature sound localization sensor is developed, which can be used to pinpoint a sound source in two dimensions described by the azimuth and elevation angles. The sensor device employs an equilateral triangle configuration consisting of three mechanically coupled circular membranes whose oscillations are detected by a fiber-optic system. The experimental results indicate that significant amplification of the directional cues and directional sensitivity can be achieved with the fly-ear inspired sensor design. This work can provide a basis for the development of miniature sound localization sensors in two dimensions.
authors.affiliation: Department of Mechanical Engineering, University of Maryland College Park, Maryland 20742, USA. alisiews@umd.edu
authors.forename: A P
authors.initials: AP
authors.lastname: Lisiewski
authors.forename: H J
authors.initials: HJ
authors.lastname: Liu
authors.forename: M
authors.initials: M
authors.lastname: Yu
authors.forename: L
authors.initials: L
authors.lastname: Currano
authors.forename: D
authors.initials: D
authors.lastname: Gee
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D000825:Animal Structures / Q000033:anatomy & histology; D000818:Animals; D004175:Diptera / Q000033:anatomy & histology* / Q000502:physiology; D004867:Equipment Design; D005336:Fiber Optic Technology / Q000295:instrumentation; D007368:Interferometry / Q000295:instrumentation*; D008904:Miniaturization; D012679:Sense Organs / Q000033:anatomy & histology; D013017:Sound Localization / Q000502:physiology*; D014732:Vibration