EE 230 Lecture 3 Spring 2010

EE 230 Lecture 3 Spring 2010 - EE 230 Lecture 3 Background...

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EE 230 Lecture 3 Background Materials Transfer Functions
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Quiz 2 There are 4 basic ways for representing a time- domain analog signal. What are they?
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And the number is ? 1 3 8 4 6 7 5 2 9 ?
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Quiz 2 There are 4 basic ways for representing a time- domain analog signal. What are they?
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Laboratory and Class Issues Monday lab will “catch up” during week 3 or week 4. Will do experiment 2 during week 3. Help with operation of equipment 11:00 Lecture in Rm 1014 or 1016 Coover Please bring bound notebooks to lab starting for Week 2 HW 2 will be due on Friday of next week
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F Typical GF for foil strain gauges are around 2 Strain gage mounted to measure the change in length (strain) Strain gauge characterization ε R Δ R L Δ L R Δ R GF = = Review from Last Time
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Often but not always represent the same analog CD/CA Analog Signal V(t) t Continuous time Continuous amplitude V(t) Discrete time Continuous amplitude t k V(t) t Continuous time Discrete amplitude V(t) t k Discrete time Discrete amplitude Review from Last Time
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Theorem: If f(t) is periodic with period T, then f(t) can be expresses as where A k and θ k are constants and () 0 kk ft A s i n ( k ω t+ θ ) k = = 2 π ω 2 π f T == Key property of many useful signals: This is termed the Fourier Series Representation of f(t) termed the frequency spectrum of f(t) ( ) 0 , k A θ F ω = <> = F( ω ) is a vector sequence f(t) F( ω ) represent a transform pair Review from Last Time
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Linearity Definition: A network is linear if V OUT (a 1 V IN1 +a 2 V IN2 )=a 1 V OUT (V IN1 )+a 2 V OUT (V IN2 ) for all constants a 1 and a 2 and for any inputs V IN1 and V IN2 It follows that superposition can be used to analyze a linear network If a network is linear, the dc transfer characteristics is
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This note was uploaded on 02/01/2012 for the course EE 230 taught by Professor Mina during the Fall '08 term at Iowa State.

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EE 230 Lecture 3 Spring 2010 - EE 230 Lecture 3 Background...

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