Practice Qualitative Interpretation Of Sensor Signals (1.7) - Fundamentals of Measurement, Sensing and Instrumentation

Practice: Qualitative Interpretation of Sensor Signals

Lesson 1.7Fundamentals of Measurement, Sensing and Instrumentation

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9 questions

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6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does a strain gauge measure?
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Think about what happens physically to the gauge.
Question 2.
What does an increase in voltage from an accelerometer indicate?
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Consider what is happening to the motion.
3Question 3.
What does an increase in voltage from a strain gauge indicate?
- Compression
- Tensile Strain
- No Change
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Think about the relationship between voltage and strain.
4Question 4.
True or False: An accelerometer only provides analog outputs.
- True
- False
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Consider the different output types a device can have.
Question 5.
A strain gauge on a structural element reads a voltage of 2V under no load, increasing to 3V under load. Calculate the strain if the gauge sensitivity is 1V/μstrain.
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Use the sensitivity to deduce how voltage change translates to strain.
Question 6.
An accelerometer on a bridge detects a consistent frequency in vibrations of 10 Hz. If the amplitude changes, how might this indicate structural health?
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Consider how amplitude relates to the health and stability of structures.

5 more questions in this section. Enroll free to practise them all.