Features in geometric receiver shapes modelling bat-like directivity patterns

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The directional properties of bat ears as receivers is a current area of interest in ultrasound research. This paper presents a new approach to analyse the relationship between morphological features and acoustical properties of the external ear of bat species. The beam pattern of Rousettus leschenaultii’s right ear is measured and compared to that of receiver structures whose design is inspired by the bat ear itself and made of appropriate geometric shapes. The regular shape of these receivers makes it possible to control the key reception parameters and thus to understand the effect on the associated beam pattern of the parameters themselves. Measurements show one receiver structure has a beam pattern very similar to that of R. leschenaultii’s ear, thus explaining the function of individual parts constituting its ear. As it is applicable to all bat species, this approach can provide a useful tool to investigate acoustics in bats, and possibly other mammals.
LanguageEnglish
Article number056007
Number of pages12
JournalBioinspiration & Biomimetics
Volume10
Issue number5
DOIs
Publication statusPublished - 3 Sep 2015

Fingerprint

Mammals
Ear
Ultrasonics
Acoustics
External Ear
Research

Keywords

  • receivers
  • beam pattern
  • acoustic measurement
  • bats
  • Chiroptera
  • Rousettus leschenaultii
  • receiver structures

Cite this

@article{5f1d1ad5450246099b118f6deffff2be,
title = "Features in geometric receiver shapes modelling bat-like directivity patterns",
abstract = "The directional properties of bat ears as receivers is a current area of interest in ultrasound research. This paper presents a new approach to analyse the relationship between morphological features and acoustical properties of the external ear of bat species. The beam pattern of Rousettus leschenaultii’s right ear is measured and compared to that of receiver structures whose design is inspired by the bat ear itself and made of appropriate geometric shapes. The regular shape of these receivers makes it possible to control the key reception parameters and thus to understand the effect on the associated beam pattern of the parameters themselves. Measurements show one receiver structure has a beam pattern very similar to that of R. leschenaultii’s ear, thus explaining the function of individual parts constituting its ear. As it is applicable to all bat species, this approach can provide a useful tool to investigate acoustics in bats, and possibly other mammals.",
keywords = "receivers, beam pattern, acoustic measurement, bats, Chiroptera, Rousettus leschenaultii, receiver structures",
author = "Francesco Guarato and Heather Andrews and Windmill, {James F C} and Joseph Jackson and Gareth Pierce and Anthony Gachagan",
year = "2015",
month = "9",
day = "3",
doi = "10.1088/1748-3190/10/5/056007",
language = "English",
volume = "10",
journal = "Bioinspiration & Biomimetics",
issn = "1748-3182",
number = "5",

}

TY - JOUR

T1 - Features in geometric receiver shapes modelling bat-like directivity patterns

AU - Guarato, Francesco

AU - Andrews, Heather

AU - Windmill, James F C

AU - Jackson, Joseph

AU - Pierce, Gareth

AU - Gachagan, Anthony

PY - 2015/9/3

Y1 - 2015/9/3

N2 - The directional properties of bat ears as receivers is a current area of interest in ultrasound research. This paper presents a new approach to analyse the relationship between morphological features and acoustical properties of the external ear of bat species. The beam pattern of Rousettus leschenaultii’s right ear is measured and compared to that of receiver structures whose design is inspired by the bat ear itself and made of appropriate geometric shapes. The regular shape of these receivers makes it possible to control the key reception parameters and thus to understand the effect on the associated beam pattern of the parameters themselves. Measurements show one receiver structure has a beam pattern very similar to that of R. leschenaultii’s ear, thus explaining the function of individual parts constituting its ear. As it is applicable to all bat species, this approach can provide a useful tool to investigate acoustics in bats, and possibly other mammals.

AB - The directional properties of bat ears as receivers is a current area of interest in ultrasound research. This paper presents a new approach to analyse the relationship between morphological features and acoustical properties of the external ear of bat species. The beam pattern of Rousettus leschenaultii’s right ear is measured and compared to that of receiver structures whose design is inspired by the bat ear itself and made of appropriate geometric shapes. The regular shape of these receivers makes it possible to control the key reception parameters and thus to understand the effect on the associated beam pattern of the parameters themselves. Measurements show one receiver structure has a beam pattern very similar to that of R. leschenaultii’s ear, thus explaining the function of individual parts constituting its ear. As it is applicable to all bat species, this approach can provide a useful tool to investigate acoustics in bats, and possibly other mammals.

KW - receivers

KW - beam pattern

KW - acoustic measurement

KW - bats

KW - Chiroptera

KW - Rousettus leschenaultii

KW - receiver structures

UR - http://iopscience.iop.org/1748-3190

U2 - 10.1088/1748-3190/10/5/056007

DO - 10.1088/1748-3190/10/5/056007

M3 - Article

VL - 10

JO - Bioinspiration & Biomimetics

T2 - Bioinspiration & Biomimetics

JF - Bioinspiration & Biomimetics

SN - 1748-3182

IS - 5

M1 - 056007

ER -