17-08-2012, 05:09 PM
ELECTROSTATIC MOTOR
ELECTROSTATIC MOTOR.pptx (Size: 1.64 MB / Downloads: 74)
Introduction
It was invented in 1748 by Benjamin Franklin.
Also called Capacitor motor.
Electrostatic motors are the dual of conventional coil-based motors.
Why we go for this?
The field exists in the atmosphere between the earth's surface and the ionosphere as an electric potential of about 360,000 volts.
The earth's field provides relatively low direct current at high voltage, which is ideal for operating electrostatic motors.
The energy of the field can be tapped with a simple antenna in the form of a vertical wire that carries one sharp point or more at its upper end.
Principle
Based on Coulomb forces(like charges repel, unlike ones attract).
Energy output is related to the change in electrostatic energy that occurs when charges are moved between the terminals of a high-voltage (HV) supply .
Working
It draws a fraction of a micro amp during operation, and can run at unexpectedly high speeds It runs on a minimum of 5000 volts DC, which can be had from several different low-current electrostatic energy sources.
Any of the following can power this motor:
Van de Graff electrostatic generator
Wimshurst electrostatic generator
Negative ion generator, it runs off a 9v battery
Aluminum foil on a TV screen
M. Foster's Cheap High Voltage
Lenny R's PVC Pipe generator
A very large electrophorus