• 文献标题:   3-D Interfacial Stress Decoupling Method Based on Graphene Foam
  • 文献类型:   Article
  • 作  者:   YANG JY, LU XZ, LI XP, BAO WM, CHEN RJ
  • 作者关键词:   3d interfacial stres, decoupling method, graphene foam, robot hand
  • 出版物名称:   IEEE TRANSACTIONS ON ELECTRON DEVICES
  • ISSN:   0018-9383 EI 1557-9646
  • 通讯作者地址:   Xidian Univ
  • 被引频次:   0
  • DOI:   10.1109/TED.2018.2869619
  • 出版年:   2018

▎ 摘  要

Measuring the interfacial stress between robots and objects is a prerequisite for robots to finish complicated works. In general, the interfacial stress is the 3-D interfacial stress which not only couple with the vertical normal interfacial stress but also the parallel shear interfacial stress. It is very important to develop a method to decouple the 3-D interfacial stress. This paper presents a measurement method that was able to decouple the measurement of the 3-D interfacial stress components. To implement the method, a 3-D interfacial stress sensor was fabricated based on graphene foams and superelastic materials. A high-resolution multichannel resistance measurement circuit was developed, and experiments were carried out with 3-D stress simulation equipment. The results showed that the sensor was capable of measuring z-direction normal stress at a range of 0-21 kPa with a sensitivity of 0.029 kPa(-1) and x- and y-direction shear stresses at a range of 0-12.5 kPa with sensitivities of 0.020, 0.019, 0.018, and 0.019 kPa(-1), and the measurement circuit was capable of measuring a range of 100 Omega-100 M Omega with a resolution of 1%. This method can be utilized in robots to decouple the measurement of the 3-D interfacial stress components.