ECE Elective 1: Instrumentation and Sensors
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Questions and Answers

What is the primary function of a sensor?

  • To actuate a response
  • To control the electrical signal
  • To translate the electrical signal
  • To receive and respond to a stimulus (correct)

    • What is the quantity, property, or condition that is received and converted into an electrical signal?

  • Stimulus (correct)
  • Translator
  • Controller
  • Actuator

    • What type of sensor is used to measure pressure, force, and airflow?

  • Optical sensors
  • Temperature sensors
  • Pressure sensors (correct)
  • Acoustic sensors

    • What is the device that receives a stimulus and responds with an electrical signal?

    <p>Sensor</p> Signup and view all the answers

    What is the role of a translator in instrumentation?

    <p>To convert the stimulus into an electrical signal</p> Signup and view all the answers

    What is the purpose of instrumentation?

    <p>To measure physical parameters</p> Signup and view all the answers

    What is the term for the pressure exerted against a surface by the weight of the air above that surface?

    <p>Atmospheric pressure</p> Signup and view all the answers

    What type of pressure is measured relative to atmospheric pressure?

    <p>Gauge pressure</p> Signup and view all the answers

    What is the opposite of vacuum pressure?

    <p>Atmospheric pressure</p> Signup and view all the answers

    Which of the following is not a type of pressure?

    <p>Absolute zero</p> Signup and view all the answers

    What is the term for the pressure measured with respect to a perfect vacuum?

    <p>Absolute pressure</p> Signup and view all the answers

    What is the difference between gauge pressure and absolute pressure?

    <p>Gauge pressure is measured relative to atmospheric pressure, while absolute pressure is measured with respect to a perfect vacuum.</p> Signup and view all the answers

    What is the typical size of a sensor chip?

    <p>2 mm × 2 mm</p> Signup and view all the answers

    What type of pressure sensor provides a pressure measurement relative to a reference of zero pressure?

    <p>Absolute pressure sensor</p> Signup and view all the answers

    What is the reference pressure for absolute pressure sensors?

    <p>Zero pressure, as close as possible to a vacuum</p> Signup and view all the answers

    What type of pressure sensor measures the difference in pressure between two points in a system?

    <p>Differential pressure sensor</p> Signup and view all the answers

    What is the reference point for gauge pressure sensors?

    <p>Local atmospheric pressure</p> Signup and view all the answers

    What type of material is used to make monolithic sensors?

    <p>Single-crystal Silicon</p> Signup and view all the answers

    What is the purpose of using sealed pressure sensors?

    <p>To measure pressure relative to atmospheric pressure</p> Signup and view all the answers

    What does the sensor type specification of a pressure sensor reflect?

    <p>The pressure type for which the sensor is designed to operate</p> Signup and view all the answers

    What happens if the maximum pressure of a pressure sensor is exceeded?

    <p>The sensor will fail or provide inaccurate signal output</p> Signup and view all the answers

    What is the full scale of a pressure sensor?

    <p>The difference between the maximum pressure and zero pressure</p> Signup and view all the answers

    What is the operating pressure range of a pressure sensor?

    <p>The range of pressures over which the sensor can operate and generate a signal output</p> Signup and view all the answers

    What does the output type specification of a pressure sensor describe?

    <p>The general nature of the output signal characteristics</p> Signup and view all the answers

    What type of pressure is below atmospheric pressure?

    <p>Vacuum pressure</p> Signup and view all the answers

    What is the term for the pressure above absolute zero?

    <p>Absolute pressure</p> Signup and view all the answers

    What is the difference in pressure between two points called?

    <p>Differential pressure</p> Signup and view all the answers

    What technology is commonly used in fabricating pressure, force, and airflow sensors?

    <p>Silicon-processing technology</p> Signup and view all the answers

    What is another name for vacuum pressure?

    <p>Negative gauge pressure</p> Signup and view all the answers

    How many technologies are mentioned in the text for fabricating pressure, force, and airflow sensors?

    <p>5</p> Signup and view all the answers

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