B-H Soft Material
AMH-DC-TB-S Permeameter
AMH-DC-TB-S Permeameter is a variation of the model AMH-DC-T-S Permeameter and provides additional features to measure, bar and strip shaped soft magnetic material in addition to toroids and rings.
The measurement of bars and strips are made in a closed circuit condition using the model LEP-SB electromagnet (Sanford-Bennett type), made of highly permeability material. The bar samples must be linear with a uniform cross section area. Pole shoes are used to complete the closed circuit configuration for the measurement.
The H field is determined by measuring the excitation field closest to the sample with a Hall probe. This measurement is accomplished by detecting the tangential components of H field in the separation surfaces of the magnetic media. The induction B inside the material is determined
measuring the flux F from a pick-up coil. Example: B = Φ/(NB• A), where A is the cross section of the specimen and NB is the number of turns of the coil. When measuring bar samples, windings are not necessary.
The sample is simply inserted into a pick-up inductive coil with the proper diameter, which contains the Hall probe.
The measuring cycle is fully automatic, and is controlled by Laboratorio Elettrofisico exclusive software (Soft2015-P), resulting in complete characterization of the material under test.The Model AMH-DC-TB-S meets the International Standards IEC 60404-4, ASTM A341 and ASTM A341.