The Submarine Depth - Control System

The figure A illustrates the submarine depth- control problem. The object is to adjust the

actual depth C to equal a desired depth R. The control system depends on a pressure

transduser, which is used to measure the actual depth. Any difference between the actual and

desired depths is amplified and it is used to drive the stern plane actuator through an

appropriate angle until the actual depth equals the desired depth. An equivalent block

diagram of such a system is illustrated in Figure B. Utilising the Routh-Hurwitz

criterion,show this system is stable for the parameters indicated.

Solutions