Example Sheet 1 With Solutions
1. Define the term ¡°signal¡± and describe three different types/classes of signals
2. Using a diagram explain the difference between the terms sensor and transducer.
3. Describe the ways in which sensors can be classified.
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4. Using a diagram explain the difference between accuracy and precision.
5. A material with a surface acoustic wave velocity of 3000 m/s is measured with a SRAS system where the generations pattern has a line period of 12 microns. What is the frequency of the generated surface acoustic wave?
6. Show by derivation that the convolution of two signals is equal to the multiplication of their spectra. Why is this result so useful?
7. Explain what is meant by ¡®time domain correlation¡¯ and how is it calculated, and the result interpreted?
8. Using a specific example, explain how an application can place constraints on the choice of sensors.
EEEE3089 Sensing system and signal processing 2020-2021
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