Mar 28, 2024  
2018-2019 Course Catalog 
    
2018-2019 Course Catalog [ARCHIVED CATALOG]

Add to Portfolio (opens a new window)

ELT 642 - Process Control & Instrumentation

Credits: 4
Lecture Hours: 4
Lab Hours: 0
Practicum Hours: 0
Work Experience: 0
Course Type: Voc/Tech
A comprehensive study of such process control characteristics as elements, modes, and stability, along with detailed knowledge of measurement technique, control mode implementation and final control element functions. In keeping with modern trends, the digital aspects of process control technology are stressed. Hydraulic and pneumatic process control is included.
Corequisite: ELT 644  
Competencies
  1. Describe a closed-loop process control system
    1. Describe each element
    2. Describe processes a closed loop system would be used in
    3. Explain controllers
    4. Explain various control elements
    5. Determine how the error signal is generated
    6. Determine what the error signal is used for
  2. Identify typical controlled variable transducers
    1. List 5 different measurement transducers
    2. Describe the function of each named transducer.
    3. Determine typical transfer functions for each named transducer 
  3. Evaluate performance of closed loop systems
    1. Identify an ideal closed-loop system response and factors that would cause a system’s response to be less than ideal
    2. Calculate steady state response give Vr, gain, transfer functions and other circuit parameters
    3. Evaluate system dynamic performance from system 2nd order response curves
  4. Describe digital and analog control
    1. Draw the block diagram for each
    2. Relate how supervisory and direct digital control differ
    3. Describe each element
  5. Convert physical quantities from SI to English and vice versa
  6. Identify thermal time lag and predict its effect
    1. Calculate transducer output at instantaneous times
    2. Calculate times for given instantaneous outputs
  7. Using gain and offset controls on an op-amp, scale a signal as desired
    1. Given transducer transfer function, specific transducer inputs and desired conditioning outputs draw an op-amp-circuit that will condition the signal as desired
    2. Calculate the gain
    3. Calculate Vr or offset voltage
  8. Predict the performance of bridge configurations
    1. Determine the conditions necessary to balance an ac bridge
    2. Determine the output from an unbalanced dc bridge
    3. Compute output from the current balance bridge
    4. Draw and explain the bridge with compensation leads
    5. Describe how a bridge is used for potentiometric measurement
  9. Predict the performance of various op-amp configurations
    1. Analyze the summing amp configuration
    2. Analyze the differential op-amp configurations
    3. Analyze the voltage follower circuit
    4. Analyze V/I and I/V converters
    5. Analyze integration configurations
    6. Analyze Linearization configurations
  10. Design RC low and high pass filter circuits
    1. Draw a RC low or high pass filter circuit
    2. Determine any two given fc, f or gain
  11. Describe the operation of and test an SCR
    1. Draw the transistor equivalent circuit
    2. Describe how it would be implemented in a circuit
    3. Describe how it is tested with an ohm meter
  12. Describe methods of converting D/A, A/D with implementation of a microprocessor
    1. Draw a parallel converter and describe its operation
    2. Draw a slope integrator converter and describe its operation
    3. Show the differences between single and dual slope converters
    4. Determine resolution of a converter given number of bits and reference voltage
  13. Describe methods of measuring displacement and force
    1. Solve problems using position transducer transfer functions
    2. Discuss stress, strain, gauge factor and modulus of elasticity
    3. Evaluate tensile, shear and cantilever strain
  14. Describe methods of measuring temperature
    1. Convert Celsius to Fahrenheit to Rankine to Kelvin
    2. Analyze thermocouple, thermistor, diode, bi-metal, gas transducers
    3. Evaluate thermal time lag effects
  15. Adjust PID parameters for optimum system performance
    1. Observe the demonstration of a servo position control system
    2. Observe the demonstration of a velocity control PID system
    3. Observe the demonstration of a temperature control PID system
    4. Observe the demonstration of a liquid level-temperature control system
  16. Summarize basic OPERATION OF A HYDRAULIC CIRCUIT
  17. Differentiate FLOW RATE AND FLOW VELOCITY
  18. Differentiate PUMP CAVITATION AND PSEUDO-CAVITATION
  19. Examine HYDRAULIC CYLINDER PARAMETERS
  20. Examine HYDRAULIC MOTOR PARAMETERS
  21. Summarize how valves are used to CONTROL HYDRAULIC ENERGY
  22. Outline basic ACTUATOR, INTENSIFIER AND ACCUMULATOR OPERATION



Add to Portfolio (opens a new window)