Title :

Vector Controlled Ultrasonic Transducer Applied to Soft Material Mechanical Impedance Estimation

Author(s) :

Sales De Castro, Elis Marina [Auteur]
Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - ULR 2697
Giraud, Frédéric [Auteur]
Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - ULR 2697
Semail, Betty [Auteur]
Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - ULR 2697
Amberg, Michel [Auteur]
Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - ULR 2697

Conference title :

2021 IEEE International Workshop of Electronics, Control, Measurement, Signals and their application to Mechatronics (ECMSM)

City :

Liberec

Country :

République tchèque

Start date of the conference :

2021-06-21

Publisher :

IEEE

Publication date :

2021-06-21

English keyword(s) :

Langevin Transducer
Low-Frequency Ultrasound
Mechanical Impedance
Skin Phantom
Vector Control

HAL domain(s) :

Sciences de l'ingénieur [physics]

English abstract : [en]

The study of skin mechanical impedance is a clue to analyse its health. We use a Langevin Transducer at 60kHz to excite the skin. In return we observe the acoustic forces generated by the interaction. To achieve that, the ...
Show more >The study of skin mechanical impedance is a clue to analyse its health. We use a Langevin Transducer at 60kHz to excite the skin. In return we observe the acoustic forces generated by the interaction. To achieve that, the system is identified and presented in the rotating reference frame, and we describe the design of two PI controllers that accurately control the vibration velocity. However, in vivo analysis can be tricky when it comes to safety and duration of tests. Thus, phantom tissues are used as substitute to simulate skin behaviour. Due to its mechanical properties similar to skin, and its simple manipulation, Dragon Skin ®, a silicone rubber type of phantom, was chosen. The paper presents the characterisation of the mechanical impedance of three silicon phantoms with different properties based on force observation. The results show that the phantoms can be indeed identified based on this method.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

European Project :

Skin Tissue INTegrity under Shear

Administrative institution(s) :

Université de Lille
Centrale Lille
Arts et Métiers Sciences et Technologies
Junia HEI

Collections :

• Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - ULR 2697

Research team(s) :

Équipe Commande

Submission date :

2022-05-18T09:23:13Z
2022-05-30T12:23:18Z
2022-06-07T08:45:27Z
2023-12-21T07:51:57Z
2024-02-06T08:10:22Z