Оглавление
Alfred Powell Morgan. Home-made Toy Motors
Home-made Toy Motors
Table of Contents
CHAPTER I. EXPLAINING HOW AN ELECTRIC MOTOR OPERATES. SOME PRINCIPLES OF MAGNETISM. THE DIFFERENCE BETWEEN A SHUNT AND A SERIES MOTOR
CHAPTER II. THE CONSTRUCTION OF SIMPLE TOY ELECTRIC MOTORS
SIMPLEX MOTOR WITH THREE-POLE ARMATURE
HOW TO MAKE THE SIMPLEX OVERTYPE MOTOR
THE MANCHESTER MOTOR
CHAPTER III. A Magnetic Attraction Motor. A Motor Having a Laminated Field and Armature Frame. How to Make an Experimental Induction Motor. How to Make an Electric Engine
A MAGNETIC ATTRACTION MOTOR
HOW TO CONSTRUCT A MOTOR HAVING A LAMINATED ARMATURE AND FIELD FRAME
HOW TO MAKE AN EXPERIMENTAL INDUCTION MOTOR
HOW TO BUILD AN ELECTRIC ENGINE
CHAPTER IV SMALL POWER MOTORS
A VERTICAL POWER MOTOR
CONNECTIONS FOR THE THREE POLE ARMATURE
CONNECTIONS FOR THE SIX-POLE ARMATURE
A HORIZONTAL POWER MOTOR
Отрывок из книги
Alfred Powell Morgan
A practical handbook giving detailed instructions for building simple but operative electric motors
.....
From this one may be led to believe that the more turns of wire an electromagnet possesses, the stronger it will be, and while to a certain extent this is true, it should be remembered that it is not simply turns that count but ampere turns and if the number of turns of wire is increased beyond a certain point the resistance of the coil to the electric current will become so great that the current in amperes flowing through the coil is greatly reduced and consequently also the magnetism is decreased.
FIG. 5.—An increase in the number of turns of wire has resulted in considerable increase in the magnetism and this magnet is able to lift a much greater weight than that shown in Figure 4.
.....
