Research on end force measurement method of soft robot based on fiber Bragg grating

被引：0
|
作者：
Tang C. [1 ]
He Y. [1 ]
Zhu L. [1 ,2 ]
Sun G. [1 ]
机构：
[1] Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science & Technology University, Beijing
[2] Beijing Laboratory of Optical Fiber Sensing and System, Beijing Information Science and Technology University, Beijing
来源：
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | 2021年 / 50卷 / 07期
关键词：
Fiber Bragg grating; Force sensor; Soft robot;
D O I：
10.3788/IRLA20200386
中图分类号：
学科分类号：
摘要：
The measurement of the terminal operating force of the surgical robot is the key to achieve the precise control of the robot, which is crucial to ensure the safety of the surgical operation. In this paper, a method of measuring the three-dimensional force of soft robot terminal end based on fiber Bragg grating was proposed to meet the requirement of minimally invasive surgery. Based on the principle of fiber grating sensing, the sensing characteristics of fiber sensor embedded in soft robot were analyzed and a soft robot terminal force decoupling model based on linear calibration with least square method and nonlinear compensation with Bernstein polynomial was established. Then the relationship between the central wavelength shift of the fiber Bragg grating and the three-dimensional force at the end of the soft robot was studied. The results show that the average repeatability of FBG sensor is 1.5 pm. The measurement accuracy error of the end force in the three directions of XYZ is lower than 5% of the full range, and the residual distribution is mostly concentrated in the reliable range, with good repeatability. The proposed FBG decoupling algorithm provides an effective method for the precise measurement of the terminal force of soft robot in minimally invasive surgery, and has a promising application prospect in the measurement of the terminal force of soft robot in biomedicine. Copyright ©2021 Infrared and Laser Engineering. All rights reserved.
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  • [1] pp. 279-301, (2015)
  • [2] Fu Yili, Pan Bo, Research progress of surgical robot for minimally invasive surgery, Journal of Harbin Institute of Technology, 51, 1, pp. 1-15, (2019)
  • [3] J Payne C, Wamala I, Bautista-Salinas D, Et al., Soft robotic ventricular assist device with septal bracing for therapy of heart failure, Science Robotics, 2, 12, (2017)
  • [4] Yan Jihong, Shi Peipei, Zhang Xinbin, Et al., Review of biomimetic mechanism, actuation, modeling and control in soft manipulators, Journal of Mechanical Engineering, 54, 15, pp. 1-14, (2018)
  • [5] De Falco I, Cianchetti M, Menciassi A., A soft multi-module manipulator with variable stiffness for minimally invasive surgery, Bioinspiration & Biomimetics, 12, 5, (2017)
  • [6] Hu W, Lum G Z, Mastrangeli M, Et al., Small-scale soft-bodied robot with multimodal locomotion, Nature, 554, pp. 81-85, (2018)
  • [7] Laschi C, Mazzolai B, Cianchetti M., Soft robotics: Technologies and systems pushing the boundaries of robot abilities, Science Robotics, 1, 1, (2016)
  • [8] Zhang X., Silicon microsurgery-force sensor based on diffractive optical MEMS encoders, Sensor Review, 24, 1, pp. 37-41, (2004)
  • [9] Peirs J, Clijnen J, Reynaerts D, Et al., A micro optical force sensor for force feedback during minimally invasive robotic surgery, Sensors and Actuators A: Physical, 115, 2-3, pp. 447-455, (2004)
  • [10] Yokoyama K, Nakagawa H, Shah D C, Et al., Novel contact force sensor incorporated in irrigated radiofrequency ablation catheter predicts lesion size and incidence of steam pop and thrombus, Circ: Arrhythm & Electrophysiol, 1, 5, pp. 354-362, (2008)
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