Abstract: An automatic regulating system for regulation of liquid pressure includes a container, a tubing connected between the human tissue and the container, a switch unit controllable to switch between first and second states, a pressure sensor for measuring liquid pressure in the human tissue, a level sensor for detecting a liquid level in the container, and a control module controlling switching of the switch unit according to the liquid pressure and the liquid level detection. Fluid communication between the human tissue and the container is prevented in the first state but is permitted in the second state. Fluid communication between the human tissue and the pressure sensor is permitted in the first state but is prevented in the second state.

Abstract: An embodiment of the invention provides a liquid-level sensor to detect liquid-level information of a liquid to be tested in a container. The sensor includes an electrode, a sensing circuit, an amplifier and a controller. The electrode is disposed on the outer surface of the container, comprising a first electrode and a second electrode. The sensing circuit is coupled to a first electrode and a second electrode, and receives a clock signal to generate a first voltage signal and a second voltage signal. The amplifier receives the first voltage signal and the second voltage signal to output an output voltage. The controller acquires liquid-level information of the liquid to be tested according to the output voltage and a voltage-volume table.

Abstract: An automatic regulating system for regulation of liquid pressure includes a container, a tubing connected between the human tissue and the container, a switch unit controllable to switch between first and second states, a pressure sensor for measuring liquid pressure in the human tissue, a level sensor for detecting a liquid level in the container, and a control module controlling switching of the switch unit according to the liquid pressure and the liquid level detection. Fluid communication between the human tissue and the container is prevented in the first state but is permitted in the second state. Fluid communication between the human tissue and the pressure sensor is permitted in the first state but is prevented in the second state.

Abstract: An embodiment of the invention provides a liquid-level sensor to detect liquid-level information of a liquid to be tested in a container. The sensor includes an electrode, a sensing circuit, an amplifier and a controller. The electrode is disposed on the outer surface of the container, comprising a first electrode and a second electrode. The sensing circuit is coupled to a first electrode and a second electrode, and receives a clock signal to generate a first voltage signal and a second voltage signal. The amplifier receives the first voltage signal and the second voltage signal to output an output voltage. The controller acquires liquid-level information of the liquid to be tested according to the output voltage and a voltage-volume table.