Define and explain damping, resonance, critical damping and optimum damping.

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College Answer

Concise definitions were required with a clear explanation of the underlying physical principles.
The response time of the system, degree of overshoot, effect on amplitude, noise and ability to
faithfully reproduce frequencies relative to the natural resonant frequency were important
considerations.
Many candidates interpreted the question as relating to arterial lines and a detailed discussion
of the components and characteristics of an intra-arterial catheter and transducer system did not
attract marks.