Lakeshore Learning Materials 642 - Manual (Page 21)

Lake Shore Model 642 Electromagnet Power Supply User’s Manual
Magnet System Design 2-1
CHAPTER 2
MAGNET SYSTEM DESIGN,
INSTALLATION, AND OPERATION
2.0 GENERAL
This chapter provides the user insight into the design, installation, and operation of a typical electromagnet. For
information on how to install the Model 642 please refer to Chapter 3. For Model 642 operation information, refer to
Chapter 4.
2.1 INTRODUCTION
A magnet used with the Model 642 Power Supply is typically an iron pole, twin coil, 4-inch pole diameter, variable air
gap, water cooled electromagnet. Larger magnets can be used depending on their electrical parameters and the magnetic
field requirements. The electromagnet provides a uniform magnetic field in the air gap between two adjustable poles.
The samples, which are to be tested for their magnetic properties, are placed in the air gap with appropriate monitoring
equipment attached. By varying the polarity and intensity of the field, useful data can be collected. A typical
electromagnet is shown in Figure 2-1.
Figure 2-1. A Typical Electromagnet