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A liquid level sensing system includes a vessel and an electrode. The vessel includes a vessel wall separating a vessel interior from a vessel exterior. The electrode is mounted to an exterior side of the vessel wall spanning a distance corresponding to a desired-level-determining range. The vessel

A liquid level sensing system includes a vessel and an electrode. The vessel includes a vessel wall separating a vessel interior from a vessel exterior. The electrode is mounted to an exterior side of the vessel wall spanning a distance corresponding to a desired-level-determining range. The vessel wall is a dielectric gap between the electrode and the vessel interior. The electrode is configured to collect a charge corresponding to a liquid level. A method for determining a liquid level in a vessel includes collecting a charge on an electrode, sensing the collected charge on the electrode with a capacitance sensor through an electrical line, and determining a liquid level in a vessel based on the collected charge sensed by the capacitance sensor.

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1. A liquid level sensing system comprising: a vessel including a vessel wall separating a vessel interior from a vessel exterior; anda single electrode mounted to an exterior side of the vessel wall spanning a distance corresponding to a desired-level-determining range, wherein the electrode is con

1. A liquid level sensing system comprising: a vessel including a vessel wall separating a vessel interior from a vessel exterior; anda single electrode mounted to an exterior side of the vessel wall spanning a distance corresponding to a desired-level-determining range, wherein the electrode is configured to collect a charge corresponding to a liquid level, and wherein the vessel wall is a dielectric gap between the electrode and the vessel interior. 2. A liquid level sensing system as recited in claim 1, further comprising capacitance detection circuitry operatively connected to the electrode, wherein the capacitance detection circuitry is configured to sense the collected charge on the electrode. 3. A liquid level sensing system as recited in claim 2, further comprising an electrical line connecting the electrode to the capacitance detection circuitry. 4. A liquid level sensing system as recited in claim 2, wherein the capacitance detection circuitry is operatively connected to a liquid level determination component for determining a liquid level based on capacitance by correlating the collected charge to an area of a dielectric material in contact with the liquid. 5. A liquid level sensing system as recited in claim 4, wherein the vessel wall includes a curved surface, wherein at least one of the electrode, the capacitance detection circuitry and the liquid level determination component are configured to remove nonlinearity effects on a liquid level measurement due to the curved surface. 6. A liquid level sensing system as recited in claim 1, wherein the vessel includes a top and a bottom, wherein a vessel axis is defined therebetween, and wherein the desired-level-determining range extends along an axis parallel to the vessel axis. 7. A liquid level sensing system as recited in claim 1, further comprising a voltage-supply source operatively connected to the electrode for supplying a voltage to the electrode. 8. A liquid level sensing system as recited in claim 1, further comprising an electrical line connecting the electrode to a voltage-supply source. 9. A liquid level sensing system as recited in claim 1, wherein the vessel includes an insulating material. 10. A liquid level sensing system as recited in claim 9, wherein the insulating material includes a plastic material. 11. A liquid level sensing system as recited in claim 1, wherein the vessel is a tank installed on an aircraft. 12. A method for determining a liquid level in a vessel: collecting a charge on an electrode;sensing the collected charge on the electrode with a capacitance sensor through an electrical line; anddetermining a liquid level in a vessel based on the collected charge sensed by the capacitance sensor. 13. A method as recited in claim 12, further comprising supplying a voltage to the electrode with a voltage supply source such that the electrode can collect the charge. 14. A method as recited in claim 12, wherein determining a liquid level includes correlating the collected charge to an area of a dielectric material in contact with liquid disposed in the vessel, wherein the vessel includes the dielectric material, and wherein the liquid acts as one plate of a capacitor and the electrode acts as a second plate of the capacitor. 15. A method as recited in claim 12, wherein sensing the collected charge on the electrode includes sensing a continuous analog signal emitted by the electrode. 16. A liquid level sensing system comprising: a vessel including a vessel wall separating a vessel interior from a vessel exterior; anda single electrode mounted to an exterior side of the vessel wall spanning a distance corresponding to a desired-level-determining range, wherein the electrode is configured to collect a charge corresponding to a liquid level, and wherein the vessel wall is a dielectric gap between the electrode and the vessel interior.