Principles of Modern Manufacturing: Sensors
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Questions and Answers

What is the primary function of an interface device?

  • To allow connection between the process and the controller (correct)
  • To convert analog signals to digital signals
  • To amplify low-level control signals
  • To produce a mechanical action in the process

    • What type of sensor measures a continuous analog variable and converts it into a continuous signal?

  • Interface device
  • Actuator
  • Discrete sensor
  • Analog sensor (correct)

    • What is the primary purpose of an actuator?

  • To amplify low-level control signals
  • To connect the process to the controller
  • To convert electrical signals to mechanical actions (correct)
  • To sense physical stimuli and convert them into electrical signals

    • What type of device is used to increase the power of a control signal to drive an actuator?

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

    What is the direction of signal flow through an interface device?

    <p>From the process to the controller and back</p> Signup and view all the answers

    What is the purpose of a sensor in a control system?

    <p>To convert physical stimuli into electrical signals</p> Signup and view all the answers

    What is the primary function of an analog-to-digital converter in a process control system?

    <p>To periodically sample continuous signals and convert them into encoded values</p> Signup and view all the answers

    What type of device is used to drive analog actuators or other analog devices in a process control system?

    <p>Digital-to-analog converter</p> Signup and view all the answers

    What is the purpose of a contact input/output interface in a process control system?

    <p>To communicate binary data between the process and controller</p> Signup and view all the answers

    What is a requirement for real-time computer control in a process control system?

    <p>To execute certain actions at specific points in time</p> Signup and view all the answers

    What type of device is used to count the number of pulses in a process control system?

    <p>Pulse counter</p> Signup and view all the answers

    What is the primary component of most process control systems?

    <p>Digital computer</p> Signup and view all the answers

    What type of robotic arm is often used for simple handling and assembly tasks involving vertical motions?

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

    What is typically attached to the end of a SCARA robotic arm?

    <p>A gripper</p> Signup and view all the answers

    What is the purpose of an end effector?

    <p>To perform a specific task</p> Signup and view all the answers

    What type of robotic arm configuration is represented by the letter 'd' in the diagram?

    <p>Jointed-arm</p> Signup and view all the answers

    What is an example of a tool used as an end effector?

    <p>Spray painting nozzle</p> Signup and view all the answers

    In what scenario is a wrist not usually present at the end of a robotic arm?

    <p>When using a SCARA robotic arm</p> Signup and view all the answers

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