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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