Flux Rate Meter

Purpose

Output the measured rate-of-change of magnetic flux

Library

Magnetic / Meters

Description

The Flux Rate Meter measures the rate-of-change \(\dot{\Phi}\) of the magnetic flux through the component and provides it as a signal at the output. The direction of a positive flux is indicated with a small arrow in the component symbol. The output signal can be made accessible in Simulink with an Signal Outport block or by dragging the component into the dialog box of a Probe block.

The magnetic flux \(\Phi\) cannot be measured directly in the circuit. However, most permeance components provide the magnetic flux as a probe signal.

Note

The Flux Rate Meter is ideal, i.e. it has infinite internal permeance. Hence, if multiple Flux Rate Meters are connected in parallel the flux through an individual meter is undefined. This produces a run-time error.

Probe Signals

Flux rate

The rate-of-change \(\dot{\Phi}\) of magnetic flux flowing through the component, in \((\mathrm{Wb}/\mathrm{s})\) or \(\mathrm{V}\).