Discovered by ben franklin in the 18th century, electrostatic motors are an allamerican invention. Jefimenko popular science magazine, april 1971, may 1971. Electro static motors oleg jefimenko free download as pdf file. Copy and paste the desired citation format or use the link below to download a file formatted for endnote. Funky looking motor is powered by static electricity hackaday. Electromagnetic retardation and theory of relativity. Oleg jefimenko the most authoritative and comprehensive book on. In his opinion, there is no objective reason for abandoning newtons forcefield gravitational theory in favor of a metric gravitational theory. Miniaturized linear and rotary electrostatic motors. Dec 20, 2019 book is the summary of the history of the electrostatic motors with timeline extending to 1970. Electrostatic motors pdf copy of the outofprint classic. Apart from possible applications electrostatic motors make fascinating playthings. An electrostatic motor or capacitor motor is a type of electric motor based on the attraction and repulsion of electric charge.
Numerical data on electrostatic motors performance is nearly absent. By downloading this thing, you agree to abide by the license. Oct 10, 2016 the electrostatic component of this motor is my attempt to meld two technologies together. Design considerations for a practical electrostatic micromotor.
Build this high voltage motor from plastic pop bottles. Book is the summary of the history of the electrostatic motors with timeline extending to 1970. A hole is bored through the brass stator, which consists of four segments that are electrically isolated from each other as shown in fig. Oleg dmitrovich jefimenko 19222009 was among the most valued of contributors to the electric spacecraft journal. Bedinicole window motor with a jefimenko electrostatic motor twist by cotton80 is licensed under the creative commons attribution noncommercial share alike license. Oleg jefimenko electrostatic motors full book 75p download as pdf file. Jefimenko s motors in detail, and also historical info on famous electrostatic motors of previous centuries. Electrostatic current generator having a disk electret as an active element. Electrostatic motor the charles stark draper laboratory, inc. Electrostatic motors are quite limited in how much total power they can provide. Electrostatic m o t o r s it is also interesting to note that certain types of electrostatic motors were frequently. Modeling and identification of an electrostatic motor.
Electrostatic motors electrostatic motors jefimenko, oleg. May 05, 2020 oleg jefimenko electrostatic motors full book 75p download as pdf file. In a jefimenko type motor the maximum value of the experimental torque is 38. Bedinicole window motor with a jefimenko electrostatic motor. The electric motors that are in common use today are based on the principles of electromagne tism. You can study the work of oleg jefimenko to learn about his atmospheric motors that he developed by searching through the internet. My hopes are to gain additional torquespeed for the motor by ionic induction with little to no additional input energy.
Design of high power electrostatic motor and generator using. Comparison with the classical electromotors is biased in favor of the electrostatic motors. The group has reconstructed models of franklins motors and developed advanced electrostatic machines of other types. Bedinicole window motor with a jefimenko electrostatic. Dynamic electric field maps, the physics teacher, 38, 154157 2000. Jefimenko constructed and operated electrostatic generators run by atmospheric electricity. Electrostatic motors are considered to be one of the most promising mems actuators for two primary reasons.
This paper explores the design of electrostatic motors utilizing the advances in silicon technology. The last chapter shows how the electrostatic motor can be designed to be powered by atmospheric electricity, which professor jefimenko experimented with at the university of west virginia. Sensors and actuators, 20 1989 17 24 17 harmonic electrostatic motors w. Eric ej037003 electrostatic motors, physics teacher, 1971. Electrostatic induction generator using electrets was proposed three decades. Batteries wont work, you need high voltage one of these motors is featured in the electricity exhibit at the museum of science in boston, powered. Their history, types and principles of operation oleg jefimenko. An introduction to the theory of electric and magnetic fields. Harmonic electrostatic motor designs the structure of a cylindrical harmonic electro static motor is shown in fig. Electro static motors oleg jefimenko electric motor electricity. Get your kindle here, or download a free kindle reading app. Oleg dmitrovich jefimenko was a physicist and professor emeritus at west virginia university. Intro here is an electrostatic motor based on a steampunk theme thats an easily build.
Oleg jefimenko managed to make a more advanced one of this. This is different from a regular motor, which is based on magnetic forces and the change of magneticdipole energy in a magnetic field. Aug 15, 2019 most electric motors in use today rely on electromagnetic effects to produce torque, whereas electrostatic motors use electrostatic forces. Each type of motor has been run synchronously with a square wave voltage. Undertaking investigations into electrostatics in the early 1970s, jefimenko found the. For smaller, micromechanical systems, electrostatic forces appear more attractive. Pages in category electrostatic motors the following 6 pages are in this category, out of 6 total. They are based on the physics of the fairweather atmosphere that has an abundance of positive electric charges up to an altitude of 20 km. History, design, and evaluations are presented for electrostatic motors. The design of my motor is based on a motor built by oleg jefimenko that developed 110 hp. An electrostatic motor or capacitor motor is a type of electric motor based on the attraction and repulsion of electric charge an alternative type of electrostatic motor is the spacecraft electrostatic ion drive thruster where forces and motion are created by electrostatically accelerating ions. Jan 06, 2014 this is my new electrostatic motor that shows the ability of these type motors to do work. They have been studied extensively in recent years by oleg d. Jefimenko chose the electrostatic motor for his project because the earthfield antennas develop extremely highvoltage lowcurrent power.
The author is very meticulous to give dates and references for the historical use of particularly unique electrostatic motors. Generation of dc power using electrostatic generators 5. Design of high power electrostatic motor and generator. May 11, 2015 3d printed electrostatic motor copper foil added to electrodes and rotor 2 watt hv power source. This is my new electrostatic motor that shows the ability of these type motors to do work. Abstract this paper describes two operational harmonic electrostatic motors. And like a magnet, it can be used to build a motor. They use electric currents but are moved by magnetic forces. An alternative type of electrostatic motor is the spacecraft electrostatic ion drive thruster where forces and motion are created by electrostatically accelerating ions. A different approach to the theory of electromagnetic and. Jefimenkostyle sky antenna kitelifted or balloonlifted wire with needles at top or, with some practice, even with a balloon and a piece of fur can sometimes work. These principles were established by michael faraday in the early 1830s and he may have invented the first electromagnetic motor. December 1978 ieee transactions on industry applications.
Physical peculiarities of coronadischarge motors springerlink. Design of high power electrostatic motor and generator using electrets article in ieej transactions on sensors and micromachines 123. The rotor was constructed by laminating a strip of aluminum foil between layers of plastic packaging tape and rolling it into a tube. Mar 05, 2019 electrostatic motors jefimenko pdf admin march 5, 2019 leave a comment oleg jefimenko electrostatic motors full book 75p download as pdf file. Great book, has the dirod generator construction project. The electrostatic component of this motor is my attempt to meld two technologies together. Jefimenko worked on the generalization of newtons gravitational theory to timedependent systems. Journal articles by oleg jefimenko electret scientific. Jefimenko, causality, electromagnetic induction, and gravitation. The most authoritative and comprehensive book on the subject of using high voltage electric charge to power a motor. A cylindrical rotor is placed inside a hollow cylindrical hole of slightly larger diameter. The motors are fabricated by disposing a plurality of conductive lands onto insulating substrates and then filling in the spaces between the lands by deposition of an insulating material.
Mar 23, 2015 electrostatic motors oleg d jefimenko pdf read. Author of gravitation and cogravitation, causality, electromagnetic induction, and gravitation, electricity and magnetism, how to entertain with your pocket calculator, electrostatic motors, 30 music programs for timex sinclair 2068, scientific graphics with lotus 123, electrostatic motors. Since the late 1980s, several kinds of electrostatic motors have been studied and fabricated, mostly as mems actuators. This week hes showing us how he made a large electrostatic motor, also known as a corona motor. This invention relates to a method of producing force or motion by applying and maintaining high potential electrostatic charges in a system of chargeable masses and associated electrodes. The motor works by using an even number of electrodes on the. Jefimenko this textbook of electromagnetic theory, written for an advanced undergraduate course, is characterized by its pedagogical excellence and by an abundance of novel material, problems, and illustrative examples based on the authors original research and on his contributions to maxwells theory of electric and magnetic phenomena. Sep 12, 2008 author of gravitation and cogravitation, causality, electromagnetic induction, and gravitation, electricity and magnetism, how to entertain with your pocket calculator, electrostatic motors, 30 music programs for timex sinclair 2068, scientific graphics with lotus 123, electrostatic motors. Jefimenko and his graduate students at west virginia university. Electrostatic motors electrostatic motors jefimenko. The amazing motor that draws power from the air modern.
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