Electromechanical Systems MST @ MSU 2006 Jeff Rhoads and Terry Ballinger.
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Transcript of Electromechanical Systems MST @ MSU 2006 Jeff Rhoads and Terry Ballinger.
Electromechanical Electromechanical SystemsSystems
MST @ MSU
2006
Jeff Rhoads and Terry BallingerJeff Rhoads and Terry Ballinger
Electromechanical SystemsElectromechanical Systems
Electromechanical Systems have Electromechanical Systems have IntegratedIntegrated Mechanical and Electrical ComponentsMechanical and Electrical Components
Basic ElectricityBasic Electricity
Voltage: Voltage: energy required to move a charge energy required to move a charge from one point to anotherfrom one point to another
Basic ElectricityBasic Electricity Voltage: Voltage: energy required to move a charge from one point to energy required to move a charge from one point to
anotheranother Current: Current: a measure of the amount of charge passing through a a measure of the amount of charge passing through a
substancesubstance
Basic ElectricityBasic Electricity Voltage: Voltage: energy required to move a charge from one point to anotherenergy required to move a charge from one point to another Current: Current: a measure of the amount of charge passing through a substancea measure of the amount of charge passing through a substance Resistance: Resistance: a measure of the resistance to current flowa measure of the resistance to current flow
Basic ElectricityBasic Electricity Voltage: Voltage: energy required to move a charge from one point to anotherenergy required to move a charge from one point to another Current: Current: a measure of the amount of charge passing through a substancea measure of the amount of charge passing through a substance Resistance: Resistance: a measure of the resistance to current flowa measure of the resistance to current flow Ohm’s Law: Ohm’s Law: Voltage = Current x ResistanceVoltage = Current x Resistance
Basic ElectricityBasic Electricity
A Simple Circuit…A Simple Circuit…
Basic ElectricityBasic Electricity
A Simple Circuit…A Simple Circuit…
V
Basic ElectricityBasic Electricity
A Simple Circuit…A Simple Circuit…
V Vload
Basic ElectricityBasic Electricity
A Simple Circuit…A Simple Circuit…
V
I
Basic MagnetismBasic Magnetism
Poles/AttractionPoles/Attraction
Basic ElectromagnetismBasic Electromagnetism
ElectromagnetsElectromagnetsLorentz ForceLorentz Force
Case Study I:Case Study I:SpeakersSpeakers
SpeakersSpeakers
Audible RangeAudible Range
Young Adults Can Typically Young Adults Can Typically
Hear Sounds BetweenHear Sounds Between
20 Hz20 Hz and and 20 kHz20 kHz
Case Study II:Case Study II:Electric MotorElectric Motor
Electric MotorElectric Motor
Electric MotorElectric Motor
GeneratorsGenerators
The Systems Used to Generate Electricity The Systems Used to Generate Electricity (Generators) are (Generators) are Almost Almost Identical to MotorsIdentical to Motors
Today’s ActivityToday’s Activity
Today’s ActivityToday’s Activity
Electric Motor
ObjectiveCreate an electric motor capable of achieving maximum rotational speed.
Design ConsiderationsDesign Considerations Coil DesignCoil Design
GeometryGeometry Number of LoopsNumber of Loops Force vs. InertiaForce vs. Inertia
BalanceBalance Magnet PlacementMagnet Placement Coil PlacementCoil Placement Contact SurfacesContact Surfaces
Measurement ProceduresMeasurement Procedures
What is the best way to determine the rate of rotation?