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 5, Problem 5.51P
A step test is run to determine the time constant of a first-order instrument (see Chapter 3). If the error fraction T(z) can be estimated to within ±2% (95%) and time I can be estimated in seconds to within ±0.5% (95%), plot «,/r versus T(/) over its range,
o<r(0<i.
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n a certain dynamic measurement application the input(x) – output(y) relationship is given by
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A displacement transducer has the following specifications:
Linearity error:±0.25% reading
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Excitation: 10-25 V
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Range: 0-5 cm
The transducer output is to be indicated on a voltme- ter having a stated accuracy of 0:1% reading with a resolution of 10 μV. The system is to be used at room temperature, which can vary by 10 °C. Estimate an uncertainty in a nominal displacement of 2 cm at the design stage. Assume 95% confidence.
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Chapter 5 Solutions
Theory and Design for Mechanical Measurements
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