Theory and Design for Mechanical Measurements
6th Edition
ISBN: 9781118881279
Author: Richard S. Figliola, Donald E. Beasley
Publisher: WILEY
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Textbook Question
Chapter 3, Problem 3.5P
A thermal sensor having a time constant of 1 s is used to record a step change of 0 °C to 49 °C in process temperature. Show the sensor time response, T(t). Determine the 90% rise time.
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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
A temperature sensor Pt100 has a rage from
-200C to 850C as shown in the figure.
Considering the function is linear, find the
sensitivity of the sensor? How can we
?improve the sensitivity of this sensor
Resistance vs. Temperature- Pt100 (385)
400
350
300
250
200
150
100
50
-200
100
100
200
300
400
50
600
700
800
900
Temperature ["c)
Resistance [Ohms]
(c) An electronic Pl temperature controller has an output p of 15 mA when the set point equals the
nominal process temperature. The controller response to step change in the temperature set point of 3
mA is shown below.
t(s)
0-
0+
20
60
80
Determine the controller gain K, and the integral time.r
p (mA)
8,0
6,8
6.0
4.4
3.6
Chapter 3 Solutions
Theory and Design for Mechanical Measurements
Ch. 3 - Prob. 3.1PCh. 3 - Prob. 3.2PCh. 3 - Prob. 3.3PCh. 3 - Prob. 3.4PCh. 3 - A thermal sensor having a time constant of 1 s is...Ch. 3 - Prob. 3.6PCh. 3 - Prob. 3.7PCh. 3 - Prob. 3.8PCh. 3 - Prob. 3.9PCh. 3 - Prob. 3.10P
Ch. 3 - Prob. 3.12PCh. 3 - Prob. 3.13PCh. 3 - Prob. 3.14PCh. 3 - Prob. 3.15PCh. 3 - Prob. 3.17PCh. 3 - Prob. 3.18PCh. 3 - Prob. 3.19PCh. 3 - Prob. 3.20PCh. 3 - A signal of frequency l/rc Hz is passed through a...Ch. 3 - Prob. 3.22PCh. 3 - Prob. 3.23PCh. 3 - Prob. 3.25PCh. 3 - Prob. 3.26PCh. 3 - Prob. 3.27PCh. 3 - Prob. 3.28PCh. 3 - An application demands that a sinusoidal pressure...Ch. 3 - Prob. 3.31PCh. 3 - Prob. 3.32PCh. 3 - Prob. 3.33PCh. 3 - Prob. 3.34PCh. 3 - Prob. 3.35PCh. 3 - Prob. 3.36PCh. 3 - Prob. 3.37PCh. 3 - Prob. 3.38PCh. 3 - Prob. 3.39PCh. 3 - Prob. 3.40PCh. 3 - A measuring system has a frequency response...Ch. 3 - Prob. 3.42PCh. 3 - A catheter is inserted into the vena cava of an...Ch. 3 - Prob. 3.44PCh. 3 - Prob. 3.45PCh. 3 - Prob. 3.46PCh. 3 - Prob. 3.47PCh. 3 - Prob. 3.48PCh. 3 - The displacement of a rail vehicle chassis as il...Ch. 3 - The amplitude spectrum of the time-varying...Ch. 3 - Prob. 3.51PCh. 3 - Prob. 3.52PCh. 3 - Prob. 3.53PCh. 3 - A camera flash light is driven by the energy...Ch. 3 - Run program Temperature Response.vi. The program...
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