CD411- Notes 3
CD411- Notes 3 CD 411
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This 2 page Class Notes was uploaded by Leah Larabee on Wednesday February 4, 2015. The Class Notes belongs to CD 411 at University of Alabama - Tuscaloosa taught by Dr. Buhr in Spring2015. Since its upload, it has received 148 views. For similar materials see Speech Science in Language at University of Alabama - Tuscaloosa.
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Date Created: 02/04/15
Chapter 2 Notes Sinusoidal waves 0 The sin 0 angle will always be the same if it is proportional Ratio X r is constant for any given angle 0 Sin 0 of 90 and 270 are peaks I Line up the circle to the wave form to figure out the displacement o If you plot the circle on a wave form figure it will give a sinusoidal figure The sine of the angle corresponds to the percentage of maximum displacement O Xmax The common element sine of the angle 0 SHM simple harmonic motion 0 Can be called sinusoidal motion I Projection of that is a sine wave or sinusoidal wave 0 Particle velocity leads to particle displacement by 90 I Because displacement is at 90 and velocity is at 0 at the 14 mark 0 Particle acceleration leads particle displacement by 180 I Newton s 2nd law Fi ma I Hooke s law Fr kx I Newton s 31 d law FiFr k is a constant and does not change mass also does not change 0 a and x must be opposites Uniform circular motion 0 A wheel rotates clockwise o The piston moves back and forth to move the wheel I Rectilinear motion 0 The degrees labeled on the piston correspond to the points along the wheel Five dimensions of sine waves 1 Amplitude 2 Frequency 3 Period 4 Phase 5 Wavelength Newton s 31 d law 0 Instantaneous Amplitude o a 0 Maximum Amplitude o A 0 PeaktoPeakAmplitude RootMeanSquare Amplitude o rms a o o rms is the standard deviation of all instantaneous amplitudes 0 Mean Square 0 Rms A 2 FullWave Rectified Average 0 FWAVG HalfWave Average 0 HWAVG
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