Table of Contents
Advertisement
Industrial Gaussmeter IGM11 Operating Instructions
Chapter 3 Function of the Gaussmeter
Measurement Details
The used Hall sensors contain a very small active semiconductor area ranging at ap-
prox.100 µm. The local resolution of this mesasuring method is thus rather high. Also
notice that single Hall sensors measure one field component only.
3.2.1 Sample Measurements with an NdFeB Magnet
Due to the high local resolution, the near-surface measurement with magnets may
lead to misinterpretations because of the large field-strength gradients.
Figure 3 shows an NdFeB magnet with a material remanence of 1400 mT. In this exam-
ple the magnetic disk has a thickness of 5 mm with a diameter of 20 mm. The magnet is
supposed to be measured in 1 mm distance from the surface.
Page 13 / 92
Figure 3 Flux Line Characteristics of an NdFeB Induction Disk
Advertisement
Table of Contents
