|
NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.40 [2011] >
IJMS Vol.40(2) [April 2011] >
| Title: | Response estimation of micro-acoustic transducer for underwater applications using finite element method |
| Authors: | Yaacob, Mohd Ikhwan Hadi
Arshad, Mohd Rizal
Manaf, Asrulnizam Abd. |
| Keywords: | Acoustic transducer
Finite element analysis
Transmitting response
Receiving response |
| Issue Date: | Apr-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Present
study proposed a modeling method to estimate the responses of micro-acoustic
transducer and new design of micro acoustic transducer with nickel aluminum
bronze encapsulation. Proposed method utilizes finite element analysis by
combining the piezoelectric and modal harmonic analyses of micro-structured
acoustic transducer. First, novel design of piezoelectric micro-acoustic
transducer with nickel aluminum bronze encapsulation was discussed. It was
design specifically for sonar applications with resonance frequency at 122 kHz.
Next, transmit and receive responses of the transducer was determined using
proposed method with reference to underwater acoustic parameter. Finally, the
estimation method was validated using existing calibrated transducers by
reverse-engineering approach. As the result responses of micro-acoustic
transducers were successfully estimated as a function of frequency. New
transducer design with nickel aluminum bronze encapsulation has transmit
response at 123 dB re 1µPa/V and receive response at -75 dB re 1V/µPa.
Validation of the method reveals the average percentage error at 18.97%. Proposed
method is useful for micro-acoustic transducer designer to determine responses
before entering fabrication process. |
| Page(s): | 176-180 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1033 (Online); 0379-5136 (Print) |
| Source: | IJMS Vol.40(2) [April 2011]
|
|
