The hydrostat controls the dive. Drawing, description

MODELING
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The hydrostat controls the dive. Tips for a modeler

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This is an automaton for controlling a submarine model. It limits the dive time of the model and prevents it from hitting the bottom. The hydrostat keeps the model at a certain depth and at a given moment shifts the horizontal rudders to the ascent.

Rice. 1 (click to enlarge)

Hydrostat controls the dive
Rice. 2: 1 - horizontal rudders, 2 - hydrostat

Here is a diagram of a simple electromechanical hydrostat. It is assembled from two ebonite (the insulating material may be different) rings 1 and 2, a diaphragm 3 made of elastic rubber 1-1,5 mm thick, interconnected by screws. Contacts 4 and 5 are made of spring steel or elastic brass 0,2-0,4 mm thick. (A spring from an old alarm clock and electric relay contacts will also work.) In pin 5, a hole with a diameter of 3,5-4 mm is drilled and a nut with an M3 thread for screw 6 is soldered. They adjust the gap between the contacts: the larger the gap, the deeper the immersion. Conductors are soldered to the contacts and an electrical circuit is assembled (see diagram).

The finished hydrostat is installed on the model body so that the adjusting screw can be screwed through the removable hatch.

How does the machine work? Before starting the model, set the horizontal rudders to dive and turn on the main engine that turns the propellers.

Run the model. Under the influence of the drowning force of the horizontal rudders, it will go under water. And the deeper, the more water pressure will be experienced by the body and diaphragm. The diaphragm will bend and close the contacts. A current will pass through the circuit - the actuator (solenoid, electric motor) will shift the horizontal rudders to ascent.

Author: V.Sviridkin

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