Errors in magnetic testing with ring specimens
Book details
- Title
- Errors in magnetic testing with ring specimens
- Publication year listed
- 1909
- Format
- Public domain eBook
- Reading access
- Free online reader; no registration required
- Source record
- View on Archive.org
About this book
Errors in magnetic testing with ring specimens
Year: 1909
The flux density in an iron ring magnetised by a solenoid with which it is overwound is not uniformly distributed over the section, but is greater towards the inner edge owing to the shorter path which the flux there has to traverse. Richter has shown that under such circumstances the total hysteresis loss is less than if the distribution were uniform, provided that the hysteresis exponent lies between 1 and 2; the increase in loss per c.cm. where the flux is denser being more than counter balanced by the smallness of the volume occupied by it compared with that occupied by the less dense flux. The average value of H for the magnetising coil may differ considerably from the H on the ax