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Technology - TECH 334

Advanced Instrumentation

  • Explain the principle of a process control system; define components in a process control system and give examples.
  • Draw a block diagram of a process control loop and simplify block diagrams.
  • Describe control objectives and three criteria to evaluate the performance of a process control loop.
  • Recognize the common P&ID symbols and read the diagrams. Draw the block diagrams from a P&I diagram and describe the system work strategy.
  • Perform calculation in a linear relationship of data representation.
  • Classify a control system based on different categories.
  • Define the four common elements of different types of systems.
  • Determine resistance of electrical, liquid flow, thermal and mechanical systems.
  • Determine capacitance of electrical, liquid flow, thermal and mechanical systems.
  • Determine dead-time delay of electrical, liquid flow, thermal and mechanical systems.
  • Use Laplace Transform table to determine Laplace transform of a function of time.
  • Use Laplace Transform table to determine Laplace transform of a component.
  • Use Laplace Transform table to determine inverse Laplace transform.
  • Find out the transfer function from a differential equation.
  • Determine frequency response data from transfer function using Bode program.
  • Read and interpret Bode diagrams.
  • Explain measuring instrument characteristics including repeatability, reliability, hysteresis, etc.
  • Determine static and dynamic characteristics of measuring instruments.
  • Sketch three different types of linearity.
  • Determine time constant, response time, rise time and settling time, PPO from a step response graph.
  • Analyze calibration data.
  • Determine the proper size of a process control valve.
  • Describe two-position and floating control mode.
  • Describe and calculate the proportional control mode.
  • Give an example and description of integral control mode.
  • Describe the derivative control mode.
  • Describe the three-mode controller.
  • Select proper control modes for different applications.
  • Describe cascade control and feedforward control.
  • Describe characteristics of different processes including integral, first-order lag, second-order lag, dead time.

Prepared by: Qiu Liu, PhD