An experimental study of the Koepsel permeameter
Book details
- Title
- An experimental study of the Koepsel permeameter
- Publication year listed
- 1914
- Format
- Public domain eBook
- Reading access
- Free online reader; no registration required
- Source record
- View on Archive.org
About this book
An experimental study of the Koepsel permeameter
Year: 1914
The modern form of the Koepsel permeameter is an instrument very similar in shape and size to a moving-coil ammeter. It gives direct readings of the magnetising force and the flux density. The moving part is a coil through which a constant current flows, and the deflection of this coil is used to measure the magnetic field. The magnetic circuit consists of a yoke with its ends joined by the test-piece. The middle of the yoke has a circular gap in which swings the test-coil for the measurement of the induction. The system is magnetised by means of the current in a solenoid surrounding the specimen. The constants of the instrument are such that the magnetising force is given by the equation H (gau