A fluidic liquid level control system

The prime objective of this investigation was to design and construct a working Fluidic liquid level control system , and to make a functional study of the characteristics of the devices employed therein. A working model of a fluidic liquid level control system is developed and experimental data is collected to describe the functional characteristics of the fluidic circuits employed. The system contains a pressure sensitive, variable frequency oscillator; appropriate demodulation stages to convert the variable frequency alternating signal into a varying non-alternating signal; and on-off control elements in the final stages --Abstract, page ii