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Embed code for: Austin Lohman Lab week 7
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March 3, 2016
Lab Week 7
For this lab I am looking into the processes behind tesla coils. I explore the concepts of Faraday and look into what makes a tesla coil. I ask myself what is going on inside and around a tesla coil. I conduct experiments with a tesla coil. I find myself with my very own tesla coil and look into how my coil makes sound.
How does a tesla coil work?
What are the components of a tesla coil?
To know what these parts do we need to know what each part is
The Primary and Secondary coils are both inductors
This means that when a current flow through an inductor change the voltage to its reverse or opposite voltage
Spark gaps are also very important in producing the ‘lightning’ effect which also
This is the same principle that is found in the spark plugs in cars
How this works is the current is shot across an electrode gap
The hot ionized air bridges the gap making it possible for the current to flow from electrode to electrode
This part intrigues me because I do not have one but I see them on other tesla coils
Is a coil of copper wire (seems like a trend)
The wire is wound in a donut shape around the top of the secondary coil
This coil is used as an inductor and also contains the magnetic flux within the core material
These I have covered before so I don’t feel the need to go in depth to much with this
A capacitor is basically a ‘perfect’ battery this just means it can take in a curtain amount of energy over a curtain time span and release that built up energy at the drop of a hat
This is a kind of electrical ‘momentum’
With tesla coils you just need to bring in energy at a frequency which then provides an increase in power over time
The energy frequency has to be at the same rate as the resonance frequency in order for this to work
There is a cycle that goes on between the primary and secondary coils and the capacitors
The current is sent out of the capacitors and into the coils
From there the magnetic field builds
The field gets to a point where the energy can no longer sustain the field and it collapses, this is seen in a spark gap with an emittion of light and heat
The process starts over from there
What can you do with tesla coils?
After further examination of what happens in side a tesla coil here are a few things I found
The amount of energy found inside the primary coil can be written as
C = Farads
V = voltage found in the spark gap
So if you look at this you can see that there is 2 ways to increase the effects of a spark gap
One is doubling the C which would result in twice as much power in the system
Two is doubling the V which would in turn quadruple the voltage present in the system
So a far more effective way to increase the size and power in a spark would be to increase the voltage in the system
I can do just that with my Tesla Coils power supply
It is shown very clearly as the spark grows much faster
So how can this apply to what a coil can do?
If you increase the voltage you will get a larger discharge of electricity
This means that the power present is much greater
I find that I can light LED’s and a florescent bulb just by bringing them close to the coil
When I increase the voltage I can get a much brighter bulb from different distances
So in what you can get is what Nikola Tesla’s dream was in the end for his coil
A world with ‘free wireless energy’
Obviously this is highly dangerous and requires a ridiculous amount of energy
Also it is very loud and gets very hot
The Toroid also acts as a capacitor
Building energy and allowing a discharge from a distance
So really right now the main use you a tesla coil would be to make a very high voltage
Also I forgot that tesla coils can also play music by using the noise made from the sparks in accord to the frequency added to the voltage to make a song just like a speaker
WHAT NOT TO DO WITH A TESLA COIL
Let the toroid touch the secondary coil, the MOSFET will explode
I learned this the hard way…
Who is Nikola Tesla? What did he invent?
He was a Serbian American inventor
And last but not least a visionary looking to the future
He is most well-known for his invention of alternating current or AC
Tesla first started his carrier by migrating to the US to work for Thomas Edison
Many years later he started to gain an interest in wireless communication
One of his idea was ill attempt at creating intercontinental wireless transmission
This was the Wardenclyffe Tower project
This feel through due to the war and investors backing out, he was forced to see it and it was demolished
He has created mechanical oscillators/generators
Electrical discharge tubes
Early versions of an x-ray machine
He also made the first remote controlled boat which was the first of its kind
Tesla was the forefront of electronics he invented many of the basic parts of the electronics we use today
I found this lab very informative and interesting. There were many new things that I have learned. One thing I learned was, nothing goes perfectly, mistakes happen and you have to pick yourself up and find the solution. Nikola Tesla was an amazing man who did many amazing things, I can only imagine what could of happened if he was alive today! I learned that tesla coils although cool, they can be very dangerous and things can go wrong. There is many different types of technology out there you just have to start looking to learn how they work.
This is the more interesting version of my lab with pictures and video https://sway.com/zw8wNuiMopxcvXK4 increase in power over time
Also I forgot that tesla c