Theory and Design for Mechanical Measurements
6th Edition
ISBN: 9781119031703
Author: FIGLIOLA
Publisher: WILEY
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Textbook Question
Chapter 2, Problem 2.31P
Repeat Problem 2.30 using a data set of 256 num bers at 8/ = (1/N) and 8/ = (1/2N) seconds. Com pare and discuss the results.
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PartII Say you've deployed a robot that can can
measure electric field due to specified charge at the
specified location with good accuracy. And you got
these results from the robot:
Electric field due to q2 at point p1 is
(-1667.0) i + (18340.0) j
Electric field due to q3 at point p1 is
(-2496.0) i + (–1628.0) j
Electric field due to q1 at point p2 is
(-6311.0) î + (2470.0) }
Electric field due to q2 at point p2 is
(-11585.0) î + (–6951.0) ĵ
Electric field due to q3 at point p2 is
(4657.0) î + (11310.0) }
c) Find the net Electric field at pj .
QUESTION 2
Solve the following differential equation in Matlab using ode45.m. Use time interval of 0.1 second. (Don't use options in ode45 to change teh tolerance.)
d²x(t)
dt²
x(0)-1,
+x²=0
dx
dt
#L-
=1.
=0
What is dx/dt (t=2.5)?
-0.217
-1.32
0.432
0.556
-0.485
○ 0.120
Help with the MATLAB code to do the following:
Given an audio recording of vehicles, compute Power Spectral Density, 1/3 octave band level, octave band level, A-weighted Leq, C-weighted Leq, L10 (unweighted since sample is short), L90 (unweighted since sample is short). If the measurement is made at approximately 50 ft, and that the vehicles are moving at an average of 65 mph, what is the flow rate Q? If instead, the noise is dominated by 1-2 motorcycles, how fast are they going?
Given-
-The data are in counts
-Calibration factor is 133 uPa/count
-Sample rate is 44100Hz. -Remember that in air the dB reference is 20 uPa
-Pwelch requires that the inputs are doubles
Chapter 2 Solutions
Theory and Design for Mechanical Measurements
Ch. 2 - Prob. 2.1PCh. 2 - Prob. 2.2PCh. 2 - Research and describe the importance of...Ch. 2 - Research and describe the importance of data...Ch. 2 - Determine the average and rms values for the func...Ch. 2 - Prob. 2.6PCh. 2 - Prob. 2.9PCh. 2 - Prob. 2.10PCh. 2 - Prob. 2.11PCh. 2 - Prob. 2.12P
Ch. 2 - Express the function y(t) = 4 sin 2xt + 15 cos...Ch. 2 - Prob. 2.14PCh. 2 - The Fourier series that formed the result for...Ch. 2 - The nth partial sum of a Fourier series is defined...Ch. 2 - For the Fourier series given by where t is time in...Ch. 2 - Determine the Fourier series for the function y(t)...Ch. 2 - Show that y(t) = f2(—jc < t < k), y(t + 2k) = y(t)...Ch. 2 - Find the Fourier series of the function shown in...Ch. 2 - Determine the Fourier series for the function y(t)...Ch. 2 - Determine the Fourier series that represents the...Ch. 2 - Consider the triangle wave shown in Figure 2.26 as...Ch. 2 - Prob. 2.24PCh. 2 - A particle executes linear harmonic motion around...Ch. 2 - Define the following characteristics of signals:...Ch. 2 - Construct an amplitude spectrum plot for the...Ch. 2 - Prob. 2.28PCh. 2 - Sketch representative waveforms of the following...Ch. 2 - Represent the function e(t) = 5 sin 31 At + 2 sin...Ch. 2 - Repeat Problem 2.30 using a data set of 256 num...Ch. 2 - A particular strain sensor is mounted to an...Ch. 2 - Prob. 2.33PCh. 2 - Prob. 2.34PCh. 2 - Consider the upward flow of water and air in a...Ch. 2 - Prob. 2.37PCh. 2 - Prob. 2.38PCh. 2 - For the even-functioned triangle wave signal...Ch. 2 - Prob. 2.40P
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