Domain Viewer DV 90

Product catalog summary

Overview
The document provides technical details about devices used for visualizing the grain and domain structures of magnetic materials, specifically focusing on the Domain Viewer DV 90 and Grain Viewer GV 1000 by Dr. Brockhaus Messtechnik GmbH & Co. KG.

Functionality
The Domain Viewer DV 90 is designed for fast visual display of the domain structure in magnetic materials, particularly electrical steel sheets. It uses a magnetic fluid to reveal magnetic discontinuities when placed on a smooth magnetic surface. The device is portable, easy to use, and effective even on coated materials.
The Grain Viewer GV 1000 is used for inspecting the grain structure in strip steel, especially grain-oriented electrical steel. It allows for visual inspection without prior sample preparation.

Technical Specifications

Domain Viewer Window Size: 90 mm diameter
Grain Viewer Size: 1,200 mm x 150 mm
Membrane Thickness: 25 µm
Power Supply: 220 V, 50 Hz
Case Dimensions for DV 90: 300 mm x 250 mm x 50 mm

Applications
The devices are suitable for use on flat magnetic surfaces such as sheet steel and magnetic strips. They are part of a broader range of measuring technologies for both soft and hard magnetic materials.

Contact Information
Dr. Brockhaus Messtechnik GmbH & Co. KG, Gustav-Adolf-Str 4, D–58507 Lüdenscheid, Germany. Phone: +49 (0) 2351 3644-0, Email: [email protected], Website: www.brockhaus.com

Catalog excerpts

Visual viewing of the grain and domain structure of magnetic materials Measuring categories Fast testing on all smooth magnetic surfaces Display of domain structure Mobile application Display of grain structure Measuring Technology for Soft Magnetic Materials

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Domain Viewer DV 90 Function The domain viewer is a device to enable fast visual display of the domain structure of magnetic materials and is particularly suitable for viewing oriented and non-oriented electrical steel sheets. In the window (90 mm diameter) of the viewer the domain structure of the material is made visible. Any magnetic discontinuity can be identified by means of a magnetic fluid between a transparent plastic window and a thin membrane. When the viewer is placed on a smooth magnetic surface, the magnetic particles align themselves on the Bloch-walls of the grains of the magnetic...

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Measuring technology for soft magnetic materials
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