Development of non-contact foreign body imaging base on photoacoustic signal intensity measurement
Penulis/Author
Andreas Setiawan (1); Chia-Yi Huang (2); Prof. Dr. Mitrayana, S.Si., M.Si. (3)
Tanggal/Date
28 2023
Kata Kunci/Keyword
Abstrak/Abstract
Background: It is challenging to visually identify tiny and concealed foreign
objects within the body due to their small size and subcutaneous location while
they can cause infections.
Methods: A non-contact photoacoustic system based on Rosencwaig-Gersho
photoacoustic theory and dual modulator method is developed for detecting
foreign objects in meat.
Result: The experiments conducted validate the successful development of this
measurement technique with 10 μm spatial resolution and its corresponding
mathematical model, demonstrating an 11% Mean Absolute Percentage Error
(MAPE) in comparison to the experimental results. Dual modulator successfully
regulates laser energy at MPE limit.
Conclusion: The utilization of non-contact photoacoustic signal intensity measurements enables the identification of foreign objects within the body. Further,
the application of mathematical modelling can validate the measurement outcomes. These findings serve as a foundation for creating an affordable and
straightforward foreign body detector
