Theory and Design for Mechanical Measurements
6th Edition
ISBN: 9781118881279
Author: Richard S. Figliola, Donald E. Beasley
Publisher: WILEY
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Chapter 6, Problem 6.39P
The Labview program Filtering_Noise demonstrates the effect of using a low-pass Butterworth filter to treat a signal containing high-frequency noise. Set the signal frequency at 5 Hz. Set the cutoff frequency at 10 Hz. Discuss the behavior of the filter as the number of stages is increased. Then incrementally decrease the cutoff frequency and discuss the behavior. Tie your discussion back to filter roll-off. What happens when the cutoff frequency is less than the signal frequency? Why?
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d. At t=0, temperature of water suddenly changed from 25°C to 100°C. The transfer function of
the sensor is given as V=(0.06V/°C) (T- 20°C). The output voltage was measured every 0.1s
and recorded in Table 1. Find the equation explaining the dynamic behaviour of the sensor.
Table 1
Time (sec)
0.0
0.1
0.2
0.3
0.4
0.5
Voltage (V)
0.3
1.8
2.8
3.4
3.9
4.2
KNOWN: Temperature
sensor
Error limit: +0.5°C
Readout Device
Resolution: 0.1°C
Accuracy: 0.6°C
FIND: ud
The following chart represents the Dynamic Amplification Factor (DLF) of pulses type Ramp.
Time from 0 to Maximum force: td
Natural Period of the structure: T
What is the maximum dynamic displacement of a structure with:
stiffness, k, of 150 kip/in
mass, m=50/g k-sec^2/in
g: gravity acceleration
The ramp force reach the maximum force F=100kip in a time td-0.15 sec
RAMP: DLF vs td/T
DLF
2500
1.500
1.000
0:000
O 0.81 in
O 1.22 in
O 0.67 in
O 1.50 in
td/T
15
Chapter 6 Solutions
Theory and Design for Mechanical Measurements
Ch. 6 - Prob. 6.1PCh. 6 - Plot the torque on a current loop as a function of...Ch. 6 - Prob. 6.3PCh. 6 - Prob. 6.4PCh. 6 - Prob. 6.5PCh. 6 - For the voltage-dividing circuit of Figure 6.14,...Ch. 6 - Prob. 6.7PCh. 6 - Prob. 6.8PCh. 6 - Consider a deflection bridge arrangement as shown...Ch. 6 - Prob. 6.10P
Ch. 6 - Prob. 6.11PCh. 6 - Prob. 6.12PCh. 6 - Prob. 6.13PCh. 6 - Prob. 6.14PCh. 6 - Consider a Wheatstone bridge circuit that has all...Ch. 6 - Prob. 6.16PCh. 6 - Prob. 6.17PCh. 6 - 6.18 A differential pressure transducer transmits...Ch. 6 - Problems 6.19 through 6.22 relate to the...Ch. 6 - Problems 6.19 through 6.22 relate to the...Ch. 6 - Problems 6.19 through 6.22 relate to the...Ch. 6 - Problems 6.19 through 6.22 relate to the...Ch. 6 - Prob. 6.23PCh. 6 - Prob. 6.24PCh. 6 - 6.25 Design a cascading LC low-pass filter with...Ch. 6 - 6.26 An electrical displacement transducer has an...Ch. 6 - Prob. 6.27PCh. 6 - Transducer
R
Figure 6.41 pH transducer circuit for...Ch. 6 - 6.29 Consider the circuit of Figure 6.42, which...Ch. 6 - 6.30 What internal impedance is needed for the...Ch. 6 - 6.31 The input to a subwoofer loudspeaker is to...Ch. 6 - 6.31 The input to a subwoofer loudspeaker is to...Ch. 6 - 6.33 A high-pass Butterworth filter with cutoff...Ch. 6 - 6.34 Design an active-RC low-pass first-order...Ch. 6 - 6.35 Design an active-RC first-order high-pass...Ch. 6 - Prob. 6.37PCh. 6 - Prob. 6.38PCh. 6 - The Labview program Filtering_Noise demonstrates...Ch. 6 - Labview program Monostable Circuit provides a...Ch. 6 - 6.42 Consider a Wheatstone bridge that has been...Ch. 6 - Prob. 6.43P
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