year 12, Issue 2 (Journal of Acoustical Engineering Society of Iran 2025)
مجله انجمن علوم صوتی ایران (مهندسی صوتیات سابق) 2025, 12(2): 50-59 |
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Ghavami Namin B, Hojjat Y. Analyzing the influence of acoustic hologram manufacturing accuracy and sound transducer excitation frequency on the sound pressure profile. مجله انجمن علوم صوتی ایران (مهندسی صوتیات سابق) 2025; 12 (2) : 5
URL: http://joasi.ir/article-1-298-en.html
URL: http://joasi.ir/article-1-298-en.html
Abstract: (66 Views)
In this study, two influential parameters in acoustic holography using 3D-printed holograms are examined: errors arising from fabrication, which depend on the precision of the 3D printer used, and errors in the excitation frequency of the high-frequency transducer, which depend on the accuracy of the power generator employed. A mathematical model was first introduced to describe each of these errors. Subsequently, using these models, the impact of these errors on the quality of the acoustic pressure profile on the target plane, as a measure of process performance, was analyzed for different operating frequencies.The results indicate that the impact of fabrication errors, given the precision of current printers, is negligible approximately 0.02%. In contrast, variations in error due to the transducer's applied frequency reach approximately 30%. Additionally, it was observed that the sensitivity of the phenomenon to both errors increases at higher frequencies. An experimental investigation of the effect of frequency on the quality of the pressure profile was also conducted, confirming the analytical results.
Article number: 5
Type of Study: Research |
Subject:
Physical Acoustics
Received: 2024/09/8 | Accepted: 2025/01/28 | Published: 2025/03/18
Received: 2024/09/8 | Accepted: 2025/01/28 | Published: 2025/03/18
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