### Abstract

Radiation properties of cones are used to steer energy from the side lobes toward the center of the beam pattern of an air-coupled source. Two structures of superposed truncated cones are designed and implemented in a finite element package to modify the beam pattern of a piston model simulating an air-coupled transducer. Results show how the energy from the sides of the beam is conveyed toward the center of it thus widening the main lobe angular domain and smoothing the beam curve. This work is intended to support methods for range estimation performed with air-coupled transducers and localization strategies with broadband ultrasonic signals, as well as to investigate mathematical relationships at the base of radiation properties of conical structures.

Language | English |
---|---|

Pages | 163-166 |

Number of pages | 4 |

Journal | Physics Procedia |

Volume | 70 |

DOIs | |

Publication status | Published - 19 Sep 2015 |

Event | 2015 International Congress on Ultrasonics - Metz, France Duration: 10 May 2015 → 14 May 2015 |

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### Keywords

- acoustic simulation
- air-coupled transducer
- beam pattern
- lobe
- piston model
- truncated cones

### Cite this

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**Radiation properties of truncated cones to enhance the beam patterns of air-coupled transducers.** / Guarato, Francesco; Mulholland, Anthony J.; Windmill, James F.; Gachagan, Anthony.

Research output: Contribution to journal › Conference Contribution

TY - JOUR

T1 - Radiation properties of truncated cones to enhance the beam patterns of air-coupled transducers

AU - Guarato, Francesco

AU - Mulholland, Anthony J.

AU - Windmill, James F.

AU - Gachagan, Anthony

PY - 2015/9/19

Y1 - 2015/9/19

N2 - Radiation properties of cones are used to steer energy from the side lobes toward the center of the beam pattern of an air-coupled source. Two structures of superposed truncated cones are designed and implemented in a finite element package to modify the beam pattern of a piston model simulating an air-coupled transducer. Results show how the energy from the sides of the beam is conveyed toward the center of it thus widening the main lobe angular domain and smoothing the beam curve. This work is intended to support methods for range estimation performed with air-coupled transducers and localization strategies with broadband ultrasonic signals, as well as to investigate mathematical relationships at the base of radiation properties of conical structures.

AB - Radiation properties of cones are used to steer energy from the side lobes toward the center of the beam pattern of an air-coupled source. Two structures of superposed truncated cones are designed and implemented in a finite element package to modify the beam pattern of a piston model simulating an air-coupled transducer. Results show how the energy from the sides of the beam is conveyed toward the center of it thus widening the main lobe angular domain and smoothing the beam curve. This work is intended to support methods for range estimation performed with air-coupled transducers and localization strategies with broadband ultrasonic signals, as well as to investigate mathematical relationships at the base of radiation properties of conical structures.

KW - acoustic simulation

KW - air-coupled transducer

KW - beam pattern

KW - lobe

KW - piston model

KW - truncated cones

UR - http://www.scopus.com/inward/record.url?scp=84948655088&partnerID=8YFLogxK

UR - http://www.sciencedirect.com/science/journal/18753892

UR - http://2015-icu-metz.gatech.edu/

U2 - 10.1016/j.phpro.2015.08.088

DO - 10.1016/j.phpro.2015.08.088

M3 - Conference Contribution

VL - 70

SP - 163

EP - 166

JO - Physics Procedia

T2 - Physics Procedia

JF - Physics Procedia

SN - 1875-3892

ER -