Please use this identifier to cite or link to this item:
Title: Self-assembly of highly sensitive 3D magnetic field vector angular encoders
Authors: Becker, C.Karnaushenko, D.Kang, T.Karnaushenko, D.D.Faghih, M.Mirhajivarzaneh, A.Schmidt, O.G.
Publishers Version:
Issue Date: 2019
Published in: Science Advances Vol. 5 (2019), No. 12
Publisher: Washington : American Association for the Advancement of Science (A A A S)
Abstract: Novel robotic, bioelectronic, and diagnostic systems require a variety of compact and high-performance sensors. Among them, compact three-dimensional (3D) vector angular encoders are required to determine spatial position and orientation in a 3D environment. However, fabrication of 3D vector sensors is a challenging task associated with time-consuming and expensive, sequential processing needed for the orientation of individual sensor elements in 3D space. In this work, we demonstrate the potential of 3D self-assembly to simultaneously reorient numerous giant magnetoresistive (GMR) spin valve sensors for smart fabrication of 3D magnetic angular encoders. During the self-assembly process, the GMR sensors are brought into their desired orthogonal positions within the three Cartesian planes in a simultaneous process that yields monolithic high-performance devices. We fabricated vector angular encoders with equivalent angular accuracy in all directions of 0.14°, as well as low noise and low power consumption during high-speed operation at frequencies up to 1 kHz.
Keywords: Giant magnetoresistance; Self assembly; Vector spaces; Vectors; Giant magnetoresistive; High performance devices; High performance sensors; Low-power consumption; Magnetic field vectors; Self assembly process; Sequential processing; Threedimensional (3-d); Signal encoding
DDC: 530
License: CC BY-NC 4.0 Unported
Link to License:
Appears in Collections:Physik

This item is licensed under a Creative Commons License Creative Commons