Validation of Skin Elasticity Measurement Method Using Indentation-based Piezoelectric Sensors
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In this paper, we propose and develop a new skin elasticity measurement method and device using indentation based on piezoelectric sensors. The proposed method is designed to minimize uncertainty caused by the multilayer structure of the skin when measuring its elasticity. In addition, we developed a piezoelectric-based thin-film pressure sensor that can perform quick and quantitative measurements during repeated use. To confirm the effectiveness of the proposed measuring method, it was compared with the experimental results of the conventional measuring devices under the same experimental conditions. A statistical correlation analysis was then performed between the experimental data from the proposed device and that from the conventional devices. As a result, it was confirmed that the proposed measuring device showed a high correlation with the Cutometer® and Dermaflex® devices, with correlation coefficients of 0.891 and 0.810 (p < 0.001), respectively. Therefore, the proposed skin elasticity measuring device was found to be effective. Due to its accuracy and convenience, it is expected to be useful in diagnosis and product development related to skin elasticity.
Abstract
In this paper, we propose and develop a new skin elasticity measurement method and device using indentation based on piezoelectric sensors. The proposed method is designed to minimize uncertainty caused by the multilayer structure of the skin when measuring its elasticity. In addition, we developed a piezoelectric-based thin-film pressure sensor that can perform quick and quantitative measurements during repeated use. To confirm the effectiveness of the proposed measuring method, it was compared with the experimental results of the conventional measuring devices under the same experimental conditions. A statistical correlation analysis was then performed between the experimental data from the proposed device and that from the conventional devices. As a result, it was confirmed that the proposed measuring device showed a high correlation with the Cutometer® and Dermaflex® devices, with correlation coefficients of 0.891 and 0.810 (p < 0.001), respectively. Therefore, the proposed skin elasticity measuring device was found to be effective. Due to its accuracy and convenience, it is expected to be useful in diagnosis and product development related to skin elasticity.