Search results
Results from the WOW.Com Content Network
Coercivity in a ferromagnetic material is the intensity of the applied magnetic field (H field) required to demagnetize that material, after the magnetization of the sample has been driven to saturation by a strong field. This demagnetizing field is applied opposite to the original saturating field.
USS Jimmy Carter in the magnetic silencing facility at Naval Base Kitsap for her first deperming treatment RMS Queen Mary arriving in New York Harbor, 20 June 1945, with thousands of U.S. soldiers – note the prominent degaussing coil running around the hull Control panel of the MES-device ("Magnetischer Eigenschutz" German: magnetic self-protection) in a German submarine Close-wrap deperming ...
Halfwave DC demagnetizing (HWDC): this process is identical to full-wave DC demagnetization, except the waveform is half-wave. This method of demagnetization is new to the industry and only available from a single manufacturer. It was developed to be a cost-effective method to demagnetize without needing a full-wave DC bridge design power supply.
Demagnetizers of the cassette type resemble cassettes and contain circuitry to demagnetize tape heads. Demagnetizers of the wand type demagnetize anything that they touch, including tape heads and capstans. The wand's advantage lies in its demagnetizing other metal parts of the tape path, not just the heads.
Avoid carrying your cards loose inside your pocket, especially if you carry items like keys and coins in the same pocket. These items can scratch the magnetic strip on the card and damage it.
In classical electromagnetism, magnetization is the vector field that expresses the density of permanent or induced magnetic dipole moments in a magnetic material. Accordingly, physicists and engineers usually define magnetization as the quantity of magnetic moment per unit volume. [1]
The demagnetizing field, also called the stray field (outside the magnet), is the magnetic field (H-field) [1] generated by the magnetization in a magnet.The total magnetic field in a region containing magnets is the sum of the demagnetizing fields of the magnets and the magnetic field due to any free currents or displacement currents.
Fig. 1 A family of AC hysteresis loops for grain-oriented electrical steel (B r denotes remanence and H c is the coercivity).. The default definition of magnetic remanence is the magnetization remaining in zero field after a large magnetic field is applied (enough to achieve saturation). [1]