PERIOD RESPONSE

Because the derivative of the level signal is being taken, the fluctuations on the period circuitry are very severe. For period circuitry of the form shown below,

°—ЛЛАЛЛЛ/—°

r2

And, if A » 1, then Equation (6-1) reduces to

Eq(S) _ _ r2C1S____________

Ein(s) " " (RiCjS+i) (r2c2s+i)

For the period portion of the electronic subsystem,

R1

=

3.

9 x 10® ohm,

R2

=

4.

3 x 10® ohm,

C1

=

0.

51 x 10”® farads, and

C2

=

0.

0047 x 10"® farads.

Therefore.

Although an exact analysis of the fluctuation on the period meter is not included in this report, it is seen from Equation (6-4) that the period output will change approximately 200 times the rate of change of the level output.