EE 230 Lecture 2 Spring 2010

EE 230 Lecture 2 Spring 2010 - EE 230 Lecture 2 Background...

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EE 230 Lecture 2 Background Materials
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Quiz 1 What is the approximate amount of data, in Bytes, that a single platter on a state of the art 3.5 inch hard drive can hold?
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And the number is ? 1 3 8 4 6 7 5 2 9
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Quiz 1 What is the approximate amount of data, in Bytes, that a single platter on a state of the art 3.5 inch hard drive can hold?
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Review from Last Time The electronics business is one the largest sectors in the world economy worldwide sales from semiconductors alone projected to be at the $260 Billion level in 2010
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Typical Electronic Part of the System Analog Input Signal Conditioning Analog to Digital Converter (ADC) Digital to Analog Converter (DAC) Analog Output Integrated Circuits and some Passive Components Invariably Used in each of these 5 Blocks Groups (often very large) of transistors used to build ICs but very limited use of individual transistors external to the integrated circuits Review from Last Time
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Material Partitioning in 09-11 Catalog
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Example of electronic system: Force Measurement with Foil Strain Gauges
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Beam supported at two points Beam deflected with force load F Force Measurement with Foil Strain Gauges
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Beam supported at two points Beam deflected with force load L- Δ L F L+ Δ L Force Measurement with Foil Strain Gauges Δ L/L is often very small
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L- Δ L L+ Δ L F If L=100ft, the thickness of the beam is 1 foot, and the deflection is 0.1ft, it can be shown that Δ L is approximately 4E-3 feet Thus, Δ L/L is approximately 4E-5 ε = Δ L/L is defined to be the strain on the surface
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EE 230 Lecture 2 Spring 2010 - EE 230 Lecture 2 Background...

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