independent variable for homopolar motor

Its operation was demonstrated by Michael Faraday in 1821 at the Royal Institution in London.. The independent variables were the number of magnets on the rotor, the sensor position, and weights in torque testing. We investigate the novel set of nonlinear ordinary differential equations dot{x} = x(y - 1) - β z, dot{y} = α (1-x 2 )-kappa y and dot{z} = x - λ z, where dot{x}equiv dx/dτ , etc.

By lgs15951 Follow. The rotor is biased with a homopolar permanent-magnetic flux, on which 2-pole flux can be superimposed to generate suspension forces. Walking Water Science Experiment Instruction. Pour water into one of the glasses until it is halfway full. In 1821, soon after the Danish physicist and chemist Hans Christian Ørsted discovered the phenomenon of electromagnetism, Humphry Davy and British scientist William Hyde Wollaston tried, but failed, to design an electric motor. Tip: Using food coloring is optional, but it will help you see the water “walking” more clearly . Each output terminal is associated with a respective pair of rotor conductor and stator conductor. Controlled Variable(s): We used the same copper wire for each of the trials; We used the same battery brand (Duracell). The dependent variable x (τ) is the electric current I(t) generated in the system measured in units of ( G/M ) 1/2 A, where 2πM is the mutual inductance between the disk and coil, and y(τ) corresponds to Ω(t) measured in units R/M rad s -1 . Each rotor conductor and stator conductor is of a generally cylindrical shape.

WHAT IS A HOMOPOLAR MOTOR? Play Download. A Homopolar motor uses direct current to power rotational movement, such as that generated by a battery. You can attach a voltmeter across the terminals of the power source and measure it. Materials and Procedure Variables Independent Variable: Different D Batteries Dependent Variable: Effectively powering the simple electric motor Control Variables: the materials other than the battery Materials: D Batteries, Insulated 22G wire, 2 large eyed metal sewing needles,

How it works: The homopolar motor is driven by the Lorentz force: as it moves through a magnetic field, the conductor is pushed through a magnetic field by opposing forces. What’s happening is that electrical current is flowing from the positive terminal of the battery to the negative and into the magnet. The voltage is easy to determine. Add Tip Ask Question Comment Download. A strong rare earth magnet. The dependent variables were the speed, measured in revolutions per minute; and the relative power, measured as an angle on the torque testing device, or as the weight, lifted with the help of a speed reducer.

Share. An AA battery. Described is a bearingless motor based upon a homopolar flux-biased magnetic bearing for force generation and a hysteresis motor for torque generation. Step 1 – Position your two empty glasses about 2 inches apart.
Dependent Variable: We will be measuring the strength of the electromagnetic field produced, with RPM. A homopolar dynamoelectric machine is provided with plural independent output terminals for selectable external interconnection to yield a variable output. Step 2 – Add a few drops of food coloring into the water. I have been trying to think of a variable i can change for it but all the ones i have come up with just wont work. 27 February 2014. What determines the speed of rotation of a homopolar motor? The homopolar motor was the first electrical motor to be built. (rotations per minute) Independent Variable(s): Magnet number and battery size.

homopolar-motor0zoom.jpg. Ohm's law tells you that you can calculate the current through a motor winding if you know the voltage and the resistance of the wire. It is called a Homopolar The independent variable τ denotes time t measured in units of L/Rs, where L is the self-inductance of the system and R the total series resistance. Part of the show AUTOMATE: The World of Robots. Hello, I decided that i would do something involving the homo polar engine for my science fair project. Ingredients. Credit: Dave Ansell. Determining the other variable, wire resistance, isn't as straightforward, because it depends on four variables. A small nut. Teacher Notes. Instructions. About: I am 14 years old and am just starting out and I plan to be an engineer More About lgs15951 » This is an instructable that will show you to make a motor out of things you have lying around the house. Simple Motor - Homopolar motor. A piece of solid copper wire . Homopolar motors can be made out of a single AA or C battery, a single neodymium disc magnet and a piece of copper wire.
Stick the magnet onto the bottom (negative end) of the battery, and stand the …