Device and method for measuring liquid level in a container by a protected pressure sensor

A method, comprising

• connecting an upper chamber vertically above a lower chamber, said lower chamber is adapted to be inserted into an inner side of a bottom wall of a container designed to hold a liquid;
• inserting the lower chamber to the bottom wall, thus lower chamber positions the lower chamber within said liquid;
• placing a diaphragm gasket functioning as an elastic common wall of said two connected chambers, designed to separate said two connected chambers;
• placing
• a first pressure sensor located at the lower chamber;
• wherein
• the upper chamber comprises tiny slots preventing from solid particles suspended in said liquid from entering into the upper chamber, allowing the liquid in the container to enter the upper chamber and exert weight on the diaphragm gasket, thereby the diaphragm gasket exerts pressure on the lower chamber which is relatively compatible with a liquid-pressure exerted by the liquid held in said container,
• and wherein contains the first pressure sensor is designed to measure the pressure exerted on the lower chamber.

A device, comprising:

• an upper chamber vertically located within a container, said container is designed to hold a liquid;
• said upper chamber is connected to an output connector, wherein the output connector is coupled to a pipe connecting to an input connector;
• said input connector comprises a first pressure sensor adapted to measure pressure;
• wherein
• the upper chamber comprises liquid received from the container, wherein said upper chamber is designed to allow the liquid to flow via the output connector through the pipe thereby to exert pressure on a gas bubble trapped in a space of said input connector, wherein the pipe is connected to the input connector, such that said gas bubble exerts pressure on a first pressure sensor designed to measure the pressure conveyed from the liquid and exerted by the gas bubble.

A method, comprising

• connecting an upper chamber vertically within a container, said container is designed to hold a liquid;
• placing an output connector from a lower side of the upper chamber, and coupling a pipe from the output connector to an input connector;
• placing a first pressure sensor located at the input connector;
• wherein,
• said liquid flows via the output connector through the pipe thus exerts pressure on a gas bubble trapped in a space of said input connector and the pipe at an edge of the pipe connected to the input connector, and wherein said gas bubble exerts pressure on a first pressure sensor for measuring the pressure conveyed from the liquid and exerted by the gas bubble.