residual magnetism

16 examples (0.03 sec)
  • Only here we must have just a little residual magnetism in the field magnet to start the whole process. Cited from A Librarian's Open Shelf, by Arthur E. Bostwick
  • Magneto-resistive heads don't use iron so they don't build up residual magnetism.
  • In the library's work the residual magnetism is represented by the latent interest in ideas that is present in every community. Cited from A Librarian's Open Shelf, by Arthur E. Bostwick
  • One side of both shell and core are split for the purpose of obviating residual magnetism. Cited from Scientific American, Volume 36, No. 8, February 24, 1877
  • On moving the bar from the pole the bound magnetism is released and a part becomes residual magnetism. Cited from Scientific American, Volume 40, No. 13 New Series, March 29, 1879
  • Residual magnetism is considered to "block out" non-residual fields.
  • If the machine does not have enough residual magnetism to build up to full voltage, usually provision is made to inject current into the rotor from another source.
  • This method depends on residual magnetism retained in the iron core to generate weak magnetic field which would allow weak voltage to be generated.
  • These beads exhibit magnetic properties when placed in a magnetic field, with no residual magnetism when removed from the magnetic field, thereby leading to the development of magnetic separation technology.
  • For the motor to work as a generator instead of a motor the rotor must be spun just faster than its nameplate speed, this will cause the motor to generate power after building up its residual magnetism.
  • Reliability is compromised by contacts sticking closed either from residual magnetism or welding.
  • Cuk points to the weak or absent residual magnetism of the last few basins and a change in the size-frequency distribution of craters which formed during this late bombardment as evidence supporting this hypothesis.
  • Arc blow tends to occur if the material being welded has residual magnetism at a certain level, particularly when the weld root is being made, and the welding current is direct current (DC positive or negative).
  • He completed his PhD in 1912 at the University of Michigan with a thesis entitled The Stability of Residual Magnetism.
  • When the machine is first started the current is feeble, because the field of the magnets in which the armature revolves is merely that due to the dregs or "residual magnetism" left in the soft iron cores of the magnet since the last time the machine was used. Cited from The Story Of Electricity, by John Munro
  • At the Curie temperature, the vibration of the molecules is sufficient to disrupt the alignment; the material loses its residual magnetism and assumes whatever magnetic field might be applied to it only for the duration of the application.