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The error due to hysteresis in moving iron type instrument is minimized by using

  • The error due to hysteresis in moving iron type instrument is minimized by using Stainless steel.
  • Hysteresis error occurs in moving iron type instruments due to the magnetic properties of the iron core.
  • When the magnetic field in the core is varied, the core does not respond immediately due to hysteresis, which can result in errors in the instrument reading.
  • To minimize hysteresis error, the core is made of a thin layer of high-permeability magnetic material like silicon steel or Permalloy.
  • The use of stainless steel for the core can reduce the hysteresis error because stainless steel has a low magnetic permeability and exhibits minimal hysteresis.
  • This makes it easier for the core to respond to changes in the magnetic field, leading to a more accurate measurement.