Skip to main content
padlock icon - secure page this page is secure

Experimental Study on a Condition of Rotating a Magnetic Ball by Applying the Pulse Magnetic Field

Buy Article:

$17.00 + tax (Refund Policy)

This paper describes a simulative experiment using a large scale model of a twisting ball magnetic display. One hemisphere of the magnetic ball with the diameter of 6mm is magnetized to “North” and colored white. The other hemisphere is magnetized to “South” and colored black. The electromagnet generates the pulse magnetic field to rotate the magnetic ball by applying the pulse current. As a half rotation is made, the visible color of the ball is inversed. Relationship between the pulse width and the amplitude of the current is studied. As the amplitude of the current is increased, the probability of rotation is increased. Finally the probability reaches 100%. As the pulse width is increased, the amplitude to rotate the ball is decreased. As a result, the following relationship is obtained. As the pulse width becomes one tenth, the correspondent amplitude for rotating the ball becomes double. For example, if the pulse width is 500ms, the correspondent amplitude is 0.3A. And as the pulse width is 50ms, the correspondent amplitude is 0.6A. This relationship is expressed by the following equation. In /I0 = (Tn /T0 )−log2, where In /I0 is the ratio of the amplitude compared with the initial amplitude and Tn /T0 is the ratio of the pulse width compared with the initial pulse width. It is also found that as the pulse width becomes one tenth, the correspondent electric energy becomes 0.4 times. This relationship is expressed by the following equation. Wn /W0 = (Tn /T0 )−log0.4 = (Tn /T0 )log2.5, where Wn /W0 is the ratio of the electric energy. As a result it is found that a current with shorter width and higher amplitude is more effective than a current with longer pulse width and lower amplitude.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Publication date: January 1, 2003

More about this publication?
  • For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Membership Information
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more