Fast Calculation of Acoustic Field Distribution for Ultrasonic Transducers Using Look-Up Table Method

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

The Manuscript ID applsci-1870915 titled “Fast Calculation of acoustic field distribution for Ultrasonic Transducers Using Look-up Table Method” belongs to the field of Acoustics, sub-field Ultrasonics/Computation Methods.  

Concerning the scientific content of the paper

1.       Paragraph “1. Introduction” is not sufficiently presenting the research in the field/sub-field and must include more articles that enhanced the methods of computing the acoustic field distribution for ultrasonic transducers such as :

-          https://doi.org/10.3390/mi13040520

-          https://ieeexplore.ieee.org/abstract/document/8925554

-          https://doi.org/10.3390/electronics8020242, etc.

2.       Paragraph “Discussion“ is missing ???

3.       Without paragraph “Discussion,” the understanding of paragraph “4. Conclusions” is affected.

4.       Paragraph “3. Numerical simulations and experiment” is not presenting any comparison of the results using the method proposed with the published results obtained using other well-known methods for ultrasonic transducers.

5.       Paragraph “4. Conclusions” is not emphasizing the novelty of the work as well as the original contributions of the authors.

About the presentation of the paper concerning the Manuscript Type MDPI journal template

1.       The manuscript doesn’t respect the Manuscript Type MDPI journal template for the “References”.

 

For the aspects mentioned above, I strongly advise the minor revision of the paper.

 

Author Response

Please see the attachment

Author Response File: Author Response.doc

Reviewer 2 Report

It is unclear how these methods could be applied to all types of US transducers. Please see the comments below.

This paper uses the look-up table method to present acoustic field distribution for ultrasonic transducers. They used both ALUT and ASLUT methods for the first time in ultrasonic transducers and demonstrated that computation time could be saved by 66% and 94% compared to the point source method. This is shown experimentally on an acoustic optic modulator. There appears to be a remarkable agreement between the computed results and the experimental data.

Ultrasonic transducers used in NDT and condition monitoring are of different types: PZT, LiNBO3, BiTiO3, GaPO4, EMAT, etc.; some elements of these materials are not homogeneous, and therefore each infinite part may not be homogeneous. The general assumption may not hold for all types of US transducers. If this is the case, how can one account for these changes in ALUT and ASLUT? This may also apply to the face plate. This technique is well-known in optics and other fields. Using an independent method to experimentally validate the computation would have been better. One such technique would be Laser Vibrometer to study the acoustic wave propagation in a material like a sheet.

Author Response

Please see the attachment

Author Response File: Author Response.doc