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Sensors 2016, 16(4), 430; doi:10.3390/s16040430

A Novel Tactile Sensor with Electromagnetic Induction and Its Application on Stick-Slip Interaction Detection

1
State Key Laboratory of Robotics and System, Department of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
2
State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou 310058, China
3
Department of Mechanical and Aerospace Engineering, Rutgers University, Piscataway, NJ 08854, USA
4
Department of Mechanical and Materials Engineering, Queen’s University, Kingston, ON K7L3N6, Canada
5
Research Institute, Kochi University of Technology, Kochi 782-0003, Japan
*
Authors to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Received: 28 January 2016 / Revised: 8 March 2016 / Accepted: 22 March 2016 / Published: 24 March 2016
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [3682 KB, uploaded 24 March 2016]   |  

Abstract

Real-time detection of contact states, such as stick-slip interaction between a robot and an object on its end effector, is crucial for the robot to grasp and manipulate the object steadily. This paper presents a novel tactile sensor based on electromagnetic induction and its application on stick-slip interaction. An equivalent cantilever-beam model of the tactile sensor was built and capable of constructing the relationship between the sensor output and the friction applied on the sensor. With the tactile sensor, a new method to detect stick-slip interaction on the contact surface between the object and the sensor is proposed based on the characteristics of friction change. Furthermore, a prototype was developed for a typical application, stable wafer transferring on a wafer transfer robot, by considering the spatial magnetic field distribution and the sensor size according to the requirements of wafer transfer. The experimental results validate the sensing mechanism of the tactile sensor and verify its feasibility of detecting stick-slip on the contact surface between the wafer and the sensor. The sensing mechanism also provides a new approach to detect the contact state on the soft-rigid surface in other robot-environment interaction systems. View Full-Text
Keywords: tactile sensor; electromagnetic induction; stick-slip detection; end effector; wafer transfer robot tactile sensor; electromagnetic induction; stick-slip detection; end effector; wafer transfer robot
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Liu, Y.; Han, H.; Liu, T.; Yi, J.; Li, Q.; Inoue, Y. A Novel Tactile Sensor with Electromagnetic Induction and Its Application on Stick-Slip Interaction Detection. Sensors 2016, 16, 430.

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