Gain and Phase
Shift
Part 3: Parameter Identification
In an experimental situation,
we can measure inputs and outputs without knowing the parameters c
and k that theoretically describe the oscillator. Indeed, you just
did that in Part 2. We can then solve the equations
and
to find c and k
from measured values of M and omega.
- Decide on a strategy for
finding c and k, and carry out your strategy.
- Explain your procedure,
and cite any confirming evidence that you have found good approximations
for c and k.
- Using your computed values
for c and k, graph the functions M(omega) and phi(omega).
The results should resemble your data plots in Part 2.
