AES E-Library

AES E-Library

A Direct-Reading B-H Meter

Document Thumbnail

In the manufacture of magnetic iron oxide for recording tape, frequent tests must be made in order to maintain uniformity of the product. The simplest and quickest method has hitherto been the use of a B-H loop tracer, where the hysteresis loop is traced on the screen of a cathode-ray tube. This involves centering the pattern and reading the results on a previously calibrated screen and requires time and experience. This paper describes a method of testing magnetic materials, particularly magnetic iron oxide, where the most important properties, i.e. Bm, Br, Hm, and Hc are indicated directly on a meter with a calibrated scale.

JAES Volume 4 Issue 1 pp. 41-46; January 1956
Publication Date:

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

AES - Audio Engineering Society