Open AccessDesign of Multifunctional Touch and Slip Sensor System Based on PVDF Piezoelectric Film
Author(s) -
Xiang Li,
Ming Zhe,
Keyi Wang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1838/1/012024
Subject(s) - piezoelectricity , signal conditioning , voltage , signal (programming language) , piezoelectric sensor , tactile sensor , acoustics , materials science , sensitivity (control systems) , electrical engineering , electronic engineering , computer science , engineering , power (physics) , artificial intelligence , robot , physics , quantum mechanics , programming language
A multi-functional touch slip sensing system is designed based on PVDF piezoelectric film. The piezoelectric sensor converts the pressure signal into electrical signal through piezoelectric effect, and the conditioning circuit further processes the electrical signal. After A/D conversion, the data is transferred to the upper computer to extract the information. In addition, based on the thermoelectric effect of piezoelectric film, the sensor can detect the thermal sensation signal and has the function of self-protection. The piezoelectric sensor adopts bionic fingerprint structure, which has high sensitivity and good flexibility. The conditioning circuit includes amplifying unit, filtering unit, voltage lifting unit and voltage following unit. These units are integrated on the circuit board of 11mm*10mm, which has high integration and easy application. The experiment verifies that manipulator equipped the sensing system can automatically judge tactile, slip and thermal sensation, and can grasp an egg and a paper cup with water, realizing the ability of soft grasping.