Lab Report 3

Lab Report 3 - Laboratory3 : JamesKing DanHegarty...

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Laboratory 3 Signal Processing in Labview: Filtering and Spectral Analysis James King Dan Hegarty Eyamindae Jallow ENME 351 Section 0103 Date: 09/30/09
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Objectives The objective of this lab is to create signals in Labview, then manipulate then  using filters.  As a result of this lab we should gain a better understanding of how filters  work, and also of spectrum analysis. Instruments Used Labview Set-up Exercise 3.1  The first step in this exercise is to create the setup shown below in Labview. We then ran this setup with frequencies of: 50, 100, 200, and 400 Hz.  We recorded the  amplitude peaks on a chart, then we changed the signal type to Square wave and  Triangular wave and recorded the amplitude data for them as well.   (Sine)
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(Square) (Triangular)
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(frequency and amplitude chart) 50 Hz 100 Hz 200 Hz 400 Hz Sine 0.7071 0.7071 0.7071 0.7071 Square 50 0.904 100 0.9153 0 0.2 0 0.2 150 0.3115 300 0.3496 200 0.9153 200 0.3496 250 0.2 490 0.1414 400 0.3496 400 0.9153 350 0.1587 450 0.1432 Triangular 50 0.5779 100 0.5634 200 0.5634 200 0.0508 150 0.0686 300 0.0508 400 0.0508 400 0.5634 250 0.0283 350 0.0178 450 0.0145 The square and triangular waves look different then the sine wave.  The sine wave is a 
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This note was uploaded on 02/13/2011 for the course ENME 351 taught by Professor Smela during the Spring '08 term at Maryland.

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Lab Report 3 - Laboratory3 : JamesKing DanHegarty...

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