UC Santa Cruz Tesla at EE70 SCIPP UC Santa Cruz UC Santa Cruz Tesla Coil Show entertains EE70.
SCIPP UC Santa Cruz UC Santa Cruz Tesla Coil Show powerpoint presentation.
-
Upload
barry-stewart -
Category
Documents
-
view
224 -
download
0
Transcript of SCIPP UC Santa Cruz UC Santa Cruz Tesla Coil Show powerpoint presentation.
SCIPPUC Santa Cruz
UC Santa Cruz Tesla Coil Show UC Santa Cruz Tesla Coil Show powerpoint presentationpowerpoint presentation
SCIPPUC Santa Cruz
Usual Tesla Program: Fun Usual Tesla Program: Fun Introduction : Introduction :
Standard Model and CosmologyStandard Model and Cosmology
UC Santa Cruz Outreach UC Santa Cruz Outreach Safety FirstSafety First Corona: Corona:
– Zorro’s Sword Zorro’s Sword – Lights without CordsLights without Cords
How the Tesla Coil WorksHow the Tesla Coil Works Knight in ArmorKnight in Armor
– Bolt to the faceBolt to the face– Fighting LightningFighting Lightning
Facts about LightningFacts about Lightning Mystery Knight in ArmorMystery Knight in Armor
– Sparks from the feetSparks from the feet
SCIPPUC Santa Cruz
Today’s Tesla Program:Today’s Tesla Program:
UC Santa Cruz Outreach ActivitiesUC Santa Cruz Outreach Activities Discussion of Sections of Tesla DemoDiscussion of Sections of Tesla Demo
– Standard Model of Particle PhysicsStandard Model of Particle Physics– CosmologyCosmology– Zorro: Conductors vs. fieldZorro: Conductors vs. field– How the Tesla Coil WorksHow the Tesla Coil Works– Power conversion: Transformer, Accelerator, AGN’sPower conversion: Transformer, Accelerator, AGN’s– Knight in Armor: Faraday cage, safetyKnight in Armor: Faraday cage, safety– Historical facts about TeslaHistorical facts about Tesla– Facts about LightningFacts about Lightning– Mystery Knight in ArmorMystery Knight in Armor
What is relevant for your class?What is relevant for your class? What other important Physics and Engineering principles What other important Physics and Engineering principles
can we bring to your class with the Tesla show?can we bring to your class with the Tesla show?
SCIPPUC Santa Cruz
OUTREACH ACTIVITESOUTREACH ACTIVITES
SCIPPUC Santa Cruz
Teaching, Research, OutreachTeaching, Research, Outreach
Particle Physics: Quarks, Gluons Particle Physics: Quarks, Gluons
AstroPhysicsAstroPhysics
Large objects in the skyLarge objects in the sky
Black holes, SupernovaeBlack holes, Supernovae
SLACSLAC
Visit us.Visit us.
SCIPPUC Santa Cruz
Teaching, Research, OutreachTeaching, Research, Outreach
SCIPP OUTREACH:TeslaTesla Coil at your School: “Zap your Teacher”
QuarknetInvite H.S. teachers into our labs for Summer research programInvite H.S. student interns into our labs for a science experience
BalloonFestOrganize a High School Science meet on Ballooning
SCIPPUC Santa Cruz
Quarknet Summer Program:H.S. teachers and student interns do research
Mid June – Mid July 2007
SCIPPUC Santa Cruz
During the Summer of 2007,6 High School student interns will work in the SCIPP Labs on:• Designing and building
a Balloon Deployable Cosmic Ray Detector
Electronics (FPGA)Scintillator Panels + PMTPayloadLaunch PreparationFlight Schedule
• Muon Lifetime Experiment• Website
High School Student Internship 2007
SCIPPUC Santa Cruz
Hands-on experience with hardware and data analysis ($300 stipend )
1 Week Teacher Workshop: Late June ‘07
SCIPPUC Santa Cruz
SCIPPUC Santa Cruz
Balloonfest in Paso Robles and Vacaville: 15 teams of 80 h. s. students launched balloons, gather & analyze data.
SCIPPUC Santa Cruz
June 2, 2007 Tobin James Cellars, June 2, 2007 Tobin James Cellars, Paso RoblesPaso Robles
SCIPPUC Santa Cruz
SCIENCE SECTIONSCIENCE SECTION
SCIPPUC Santa Cruz
Galaxy
DNA
CellAtom
Nucleus
Electron microscope
Accelerator
The size of the object and its distance tells me what kind of instrument I need to see it.
Larger & Farther away
Smaller & Harder to see
A Physicist View of the Universe
Logarithmic Scale: every inch = factor 10
SCIPPUC Santa Cruz
Your Cosmic HistoryYour Cosmic History(an astronomer’s perspective)(an astronomer’s perspective)
You!Protein molecules:Basic building blocks of life
Earth and Sun:Home of the C,N,O atoms from which
these protein molecules were assimilated
Sun’s ancestral stars:Their nuclear fusion reactionsproduced these C,N,O atoms
Galaxy:Large familyof stars
You are here!
SUPERNOVAE!!!!
SCIPPUC Santa Cruz
Relatives of the Milky WayRelatives of the Milky Way
Milky Way
SCIPPUC Santa Cruz
Normally you can't see, hear or Normally you can't see, hear or smell electricity, but the Tesla Coil smell electricity, but the Tesla Coil generates generates 1 million volts1 million volts, causing, causing• Bright sparksBright sparks• Loud crackling noiseLoud crackling noise• The air smell strange (Ozone)The air smell strange (Ozone)
SAFETY RULESSAFETY RULESSAFETY RULESSAFETY RULES
BRACE YOURSELF!BRACE YOURSELF!BRACE YOURSELF!BRACE YOURSELF!
1 Million 1 Million Volts! Volts!
DANGERDANGER
1 Million 1 Million Volts! Volts!
DANGERDANGER Stay at least 20 ft. awayStay at least 20 ft. away Computers, Gameboys, CD players, Computers, Gameboys, CD players,
telephones to the back of the room – telephones to the back of the room – unplugged, switched off!unplugged, switched off!
Hearing aids off, pacemakers out of Hearing aids off, pacemakers out of room!room!
SAFETY FIRST!SAFETY FIRST!SAFETY FIRST!SAFETY FIRST!
SCIPPUC Santa Cruz
ZORRO: EM FIELDZORRO: EM FIELD
SCIPPUC Santa Cruz
ZorroZorroZorroZorro
Drawing lightning with a swordDrawing lightning with a sword
SCIPPUC Santa Cruz
Sparks fly to sword
Electric current goes back through wire
Some electric current also goes through the air and lights up fluorescent bulbs
Where else does that happen?
SCIPPUC Santa Cruz
TECHNICAL SECTION:TECHNICAL SECTION:TESLA COIL EXPLAINEDTESLA COIL EXPLAINED
SCIPPUC Santa Cruz
Voltage Voltage starts starts at 120 at 120 ends ends up at up at
1 million!1 million!
Voltage Voltage starts starts at 120 at 120 ends ends up at up at
1 million!1 million!
TransformerTransformer14,000volt
OutletOutlet120 volt
Resonance circuitResonance circuit1 million
volt
Summary of Tesla coil Summary of Tesla coil operation:operation:
SCIPPUC Santa Cruz
High voltage sparks I: Jacob’s ladderHigh voltage sparks I: Jacob’s ladderHigh voltage sparks I: Jacob’s ladderHigh voltage sparks I: Jacob’s ladder
Roff:
RJ
RJ>>R -> VJ>>VR
I=0
on:RJR
RJ<<R
I=V/(RJ+R)
R14kVE=VJ/d
SCIPPUC Santa Cruz
primarytransformer
secondarytransformer
S
C
T
P2 S2
UCSC EE 70
SCIPPUC Santa Cruz
primarytransformer
secondarytransformer
• 110 VAC -> >=14kV• C gets charged• high V across S
S
C
T
P2 S2
• S breaks down• C discharges through P2• resonant circuit (S,C,P2)
CP 2/11
• virtual capacitor (T -> ground)
• resonant circuit (S2,T)
• energy transfer
• voltage gain :
• power transfer/sparks at 1 (10-100 MHz)
12 2/1 TS
kVVTCV CT 100/
High voltage sparks II: Tesla coil High voltage sparks II: Tesla coil High voltage sparks II: Tesla coil High voltage sparks II: Tesla coil
SCIPPUC Santa Cruz Transformer 101
Power conserved (at best! - heat, sound, motion all reduce efficiency!)
Power = current*voltage = I*V is constant
The Power is transmitted by the Magnetic Flux
from the primary (n1) to the secondary winding (n2)
(best to use iron core to keep the magnetic flux inside!)
V1, I1
V2, I2
n1
n2
Magnet Yoke
Magnet Flux
V1 n1*d/dt
V2 n2*d/dt
V2 n2/n1* V1
SCIPPUC Santa Cruz
PHYSICS PRINCIPLE SECTION:PHYSICS PRINCIPLE SECTION:CONVERSION OF ENERGYCONVERSION OF ENERGY
SCIPPUC Santa Cruz
Electrical Power Electrical Power
is converted is converted
wind, water, wind, water,
thermal powerthermal power
Electrical Power Electrical Power
is converted is converted
wind, water, wind, water,
thermal powerthermal power
Physics Principle: TransformerPhysics Principle: TransformerPhysics Principle: TransformerPhysics Principle: Transformer
Power goes inat 14000 Volts
Power comes outAt 120 Volts
It is brought to your city It is brought to your city
on high voltage lines to transformerson high voltage lines to transformers
SCIPPUC Santa Cruz
Transformation of PowerTransformation of Power
The SLAC linear accelerator creates The SLAC linear accelerator creates 90 Billion90 Billion Volts, Volts, as much as as much as 90,000 Tesla coils!90,000 Tesla coils!
We use that power to make We use that power to make new particles for new particles for scientific researchscientific research
SCIPPUC Santa Cruz
Transformation of PowerTransformation of PowerElectrical power is converted everywhere Electrical power is converted everywhere
At home: Iron, Micro wave, Heater, RadioAt home: Iron, Micro wave, Heater, Radio
GLAST Mission (SCIPP+SLAC):GLAST Mission (SCIPP+SLAC):
investigate the most powerful investigate the most powerful “power plants” in the universe “power plants” in the universe
GLASTGLAST
Space hosts incredible Power sourcesSpace hosts incredible Power sources
Black holes explode :Black holes explode :
Matter -> Light, x-rays, “jets”Matter -> Light, x-rays, “jets”
SCIPPUC Santa Cruz
Meet the Fighting KnightMeet the Fighting KnightMeet the Fighting KnightMeet the Fighting Knight
Fighting LightningFighting Lightning
Bolt to the HeadBolt to the Head
SCIPPUC Santa Cruz
HISTORICAL SECTION:HISTORICAL SECTION:NICOLA TESLANICOLA TESLA
SCIPPUC Santa Cruz
Thomas “DC” Thomas “DC” Edison Edison
and his Batteriesand his Batteries
Nikola “AC” TeslaNikola “AC” Tesla
and his and his GeneratorsGenerators
vs.vs.
Tesla RevivalTesla Revival 271 web sites are dedicated to Nikola 271 web sites are dedicated to Nikola
TeslaTesla Join the “Tesla Coil Web Ring” Join the “Tesla Coil Web Ring”
http://nav.webring.yahoo.com/hub?ring=teslaring&list
History was not kind to N. Tesla:History was not kind to N. Tesla:
Engineering Battle Royal of the 20Engineering Battle Royal of the 20thth Century:Century:
Edison won the first Edison won the first rounds, rounds,
but Tesla carried the daybut Tesla carried the day
SCIPPUC Santa Cruz
Nikola Tesla as a Daredevil in a double-exposure Nikola Tesla as a Daredevil in a double-exposure photographphotograph
Learn more at Learn more at http://nav.webring.yahoo.com/hub?ring=teslaring&list
SCIPPUC Santa Cruz
SCIENCE SECTION:SCIENCE SECTION:ATOMIC and ATHMOSPHERIC ATOMIC and ATHMOSPHERIC PHYSICSPHYSICS
SCIPPUC Santa Cruz
LightningLightning
Jacob’s LadderJacob’s Ladder
CoronaCorona
Tesla SparksTesla Sparks
are all related. are all related.
LightningLightning
Jacob’s LadderJacob’s Ladder
CoronaCorona
Tesla SparksTesla Sparks
are all related. are all related.
Principle:Principle: Air is made of molecules. When they are Air is made of molecules. When they are ionized, they become charged and can conduct a ionized, they become charged and can conduct a current like an electrical wire. current like an electrical wire.
If there is a large current, it heats up the air and If there is a large current, it heats up the air and makes light. Thus, the sparks, flames etc are direct makes light. Thus, the sparks, flames etc are direct evidence for the model of atoms!evidence for the model of atoms!
Electricity in AirElectricity in Air
SCIPPUC Santa Cruz
How lightning worksHow lightning works
+
++
+
+
+
+
+
+
+++
++
+++
+ – –
–
–
–
–
–
–
–
– – –
–
–
–
++
+
++ ++ ++ ++ ++ ++ ++ ++ ++++ ++++++++
– – – – – – – – – – – – – – – – – – – – – –
– – – – – – – – – – – – – –
– – – – – – – – – – – –
– – – –
++ ++ ++ ++++++
++ ++
++ ++
++++ ++
++ ++ ++ ++ ++ ++
++++
++ ++ ++
++
Ground is safe!Ground is safe!
In the turbulent clouds, charges In the turbulent clouds, charges get separatedget separated
The ionized air can conduct the The ionized air can conduct the electrical currentelectrical current
SCIPPUC Santa Cruz
TECHNICAL SECTION:TECHNICAL SECTION:FARADAY CAGEFARADAY CAGE
SCIPPUC Santa Cruz
The Faraday CageThe Faraday Cage
++++ ++
++++
++ ++ ++ ++++++++
– – – – – – – – – – – – – – – – – – – –
– – – –
– –
++++++
++ ++++++
Are you Are you safesafe in an airplane in an airplane or a car during a lightning or a car during a lightning storm?storm?
Is it safe for the knight to Is it safe for the knight to be hit by the lightning be hit by the lightning bolt?bolt?
Yes!Yes! Electric current flows Electric current flows invisibly through the invisibly through the outsideoutside of the metal shell of the metal shell (Faraday Cage), not (Faraday Cage), not touching the people touching the people inside.inside.
SCIPPUC Santa Cruz
Posted on Tue, May. 17, 2005Posted on Tue, May. 17, 2005
Students uninjured after power line falls on carStudents uninjured after power line falls on car
By Sandra GonzalesBy Sandra Gonzales
Mercury NewsMercury News
Four San Jose State University students Four San Jose State University students escaped injury Monday night after being escaped injury Monday night after being trapped in their car after a power line fell on it trapped in their car after a power line fell on it near the university.near the university.
At about 8 p.m., the four were traveling in the At about 8 p.m., the four were traveling in the car on South Sixth Street near East William car on South Sixth Street near East William Street when a tree fell, blocking the street and Street when a tree fell, blocking the street and knocking down power lines, fire officials said.knocking down power lines, fire officials said.
The lines struck a chain-link fence, a parked The lines struck a chain-link fence, a parked Honda Accord and a Chevrolet van, and one Honda Accord and a Chevrolet van, and one landed on the moving car. As the scene landed on the moving car. As the scene unfolded, a San Jose fire engine that happened unfolded, a San Jose fire engine that happened to be nearby responded, warning the to be nearby responded, warning the occupants of the Toyota Corolla to stay inside occupants of the Toyota Corolla to stay inside until PG&E could shut off the power to the line. until PG&E could shut off the power to the line. The car's occupants were safe while they were The car's occupants were safe while they were inside the car, but could have been inside the car, but could have been electrocuted if they attempted to get out electrocuted if they attempted to get out before the power was cut.before the power was cut.
Once the power was shut off, the students Once the power was shut off, the students safely left their car unharmed. The downed safely left their car unharmed. The downed power lines, however, sparked a small fire on a power lines, however, sparked a small fire on a nearby tree that was quickly extinguished.nearby tree that was quickly extinguished.
SCIPPUC Santa Cruz
Mystery KnightMystery KnightMystery KnightMystery Knight
Who is afraid of Lightning?Who is afraid of Lightning?
Not the Mystery Knight!Not the Mystery Knight!
Even if she/he is NOT Even if she/he is NOT groundedgrounded
SCIPPUC Santa Cruz
Electrical Electrical current current flows on the flows on the OUTSIDE of OUTSIDE of a metal!a metal!
Is the Mystery Knight OK?Is the Mystery Knight OK? Let’s check!Let’s check!
The armored suit is safe! The armored suit is safe! It's a Faraday Cage – no It's a Faraday Cage – no
electric field allowed inside.electric field allowed inside.
Is the Mystery Knight OK?Is the Mystery Knight OK? Let’s check!Let’s check!
The armored suit is safe! The armored suit is safe! It's a Faraday Cage – no It's a Faraday Cage – no
electric field allowed inside.electric field allowed inside.Invisible Invisible currentcurrent
Visible Visible sparkssparks
GroundGround
1 Million Volts1 Million Volts
Visible Visible sparkssparks
SCIPPUC Santa Cruz
Say “Good bye” to Say “Good bye” to
Daniel Greenhouse,Daniel Greenhouse,
the brain behind the sparksthe brain behind the sparks
He was an undergraduateHe was an undergraduate
at UC Santa Cruz.at UC Santa Cruz.
http://scipp.ucsc.eduhttp://scipp.ucsc.edu
SCIPPUC Santa Cruz
Fysiks is Phun!Fysiks is Phun!
Questions?Questions?
Comments?Comments?
Ask after the show, e-mail, visit…Ask after the show, e-mail, visit…
You can find our us on the webYou can find our us on the web
http://scipp.ucsc.edu http://scipp.ucsc.edu
SCIPPUC Santa Cruz
Discussion: How much can we learn?Discussion: How much can we learn?
Discussion of Sections of Tesla DemoDiscussion of Sections of Tesla Demo– Standard Model of Particle PhysicsStandard Model of Particle Physics– CosmologyCosmology– Zorro: Conductors vs. fieldZorro: Conductors vs. field– How the Tesla Coil WorksHow the Tesla Coil Works– Power conversion: Transformer, Accelerator, AGN’sPower conversion: Transformer, Accelerator, AGN’s– Knight in Armor: Faraday cage, safetyKnight in Armor: Faraday cage, safety– Historical facts about TeslaHistorical facts about Tesla– Facts about LightningFacts about Lightning
UC Santa Cruz Outreach ActivitiesUC Santa Cruz Outreach Activities