A design method for out-of-plane structures by multi-step magnetic self-assembly

Eiji Iwase, Isao Shimoyama

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We provide the design method of multi-step magnetic self-assembly using ferromagnetic-hinged structures. The process uses the magnetostatic torque generated by an external magnetic field perpendicular to the substrate to lift hinged structures. Hinged structure is composed of a rigid plate connected by elastic hinges to one side of a substrate. If hinged structures are raised in sequential order, it is possible to assemble like Japanese "origami" complex three-dimensional structures. In our previous study, we found that a dimensionless factor that depends on its shape determines the sensitivity of the hinged microstructures to a magnetic field. This factor can be used as a criterion in designing a process for sequential batch self-assembly, because the factor indicates the differences in the sensitivity. In this study, we designed multi-step sequential assembly by using the dimensionless factor. Four-step sequential batch assembly was demonstrated using this method. This method will be useful for optical systems, which consist of many complex three-dimensional structures.

Original languageEnglish
Pages (from-to)310-315
Number of pages6
JournalSensors and Actuators, A: Physical
Volume127
Issue number2
DOIs
Publication statusPublished - 2006 Mar 13
Externally publishedYes

Fingerprint

Self assembly
self assembly
Magnetic fields
Magnetostatics
Substrates
Hinges
Optical systems
Torque
assembly
Microstructure
hinges
sensitivity
magnetostatics
magnetic fields
torque
microstructure

Keywords

  • Hinged structures
  • Magnetic self-assembly
  • Multi-step sequential assembly
  • Out-of-plane structures

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Instrumentation

Cite this

A design method for out-of-plane structures by multi-step magnetic self-assembly. / Iwase, Eiji; Shimoyama, Isao.

In: Sensors and Actuators, A: Physical, Vol. 127, No. 2, 13.03.2006, p. 310-315.

Research output: Contribution to journalArticle

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