Time Delay and Lag in Series

Applets

• Single Lag Frequency Response
• Single Time Delay Frequency Response
• Time Delay and Lag Frequency Response
• Single Lag Bode Diagram
• Single Time Delay Bode Diagram
• Time Delay and Lag Bode Diagram

Exercise

• Choose a delay time, gain and time constant.
• Look at the Frequency Response and Bode Diagrams for these as separate entities.
• Now look at the Frequency Response for the same parameters in series.
• Vary the frequency and plot the Bode Diagram.
• Go to the Bode Diagram and look at the effect of varying the parameters.

Questions

• What is the relationship between the Amplitude Ratios for the separate processes and when they are joined in series?
• What is the relationship between the Phase Angles for the separate processes and when they are joined in series?

Answers to Questions

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