ACADSTAFF UGM

CREATION
Title : Surface crack detection with low-cost photoacoustic imaging system
Author :

Andreas Setiawan (1) Prof. Drs. Gede Bayu Suparta, M.S., Ph.D. (2) Prof. Dr. Mitrayana, S.Si., M.Si. (3) Dr.Eng. Waskito Nugroho, S.Si., M.Si. (4)

Date : 0 2018
Keyword : cracks,Imaging System,Laser Diode,Photo Acoustic cracks,Imaging System,Laser Diode,Photo Acoustic
Abstract : Photoacoustic measurement in an imaging system is a unique method as it uses optical disturbance but observes its effect acoustically. Acoustical observation increases the quality of a measurement by reducing the scattering effect that often occurs in optical research. However, a few problems, such as cost and complexity, hinder development of a photoacoustic system. This report presents a design of a photoacoustic system using a laser diode and a commercial microphone as the acoustic emission source and sensor, respectively. Analysis of the photoacoustic signal received by the microphone was performed with software-based Fourier transformation, which makes the photoacoustic system simpler and lower in cost. By measuring the amplitude of the signal, the system accurately detects surface micrometer cracks. The report shows that the system is capable of producing a photoacoustic image of an object with micro-cracks on its surface. The results indicate that the photoacoustic imaging system developed in the experiment is a more promising way to generate images of cracks than optical imaging.
Group of Knowledge : Fisika
Original Language : English
Level : Internasional
Status :
Published
Document
No Title Document Type Action
1 full dokumen_SURFACE CRACK DETECTION WITH LOW-COST.pdf
Document Type : [PAK] Full Dokumen
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2 cek similaritas.pdf
Document Type : [PAK] Cek Similarity
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