Method and apparatus for measuring volume of liquid and fuel cell system
OwnerLei HU, Hye-jung CHO +2inventors
InventorsLei HU, Hye-jung CHO, Young-jae KIM, Young-seung NA
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Abstract
The volume of liquid that remains in a liquid storage is calculated by measuring capacitances between several pairs of metal plates attached to each of several corresponding faces of the liquid storage and by combining liquid volumes corresponding to the capacitance based on the current position of the liquid storage. Such a method of measuring the volume of liquid can be used to measure the amount of fuel that remains in a fuel cell system.
Claims25
A method of measuring a volume of liquid, the method comprising:
- receiving a first capacitance value representing a first capacitance between first metal plates attached to a liquid storage and a second capacitance value representing a second capacitance between second metal plates attached to the liquid storage;
- obtaining a first liquid volume value corresponding to the first capacitance value and a second liquid volume value corresponding to the second capacitance value;
- and
- calculating a volume of liquid that remains in the liquid storage by combining a plurality of liquid volume values including the first liquid volume value and the second liquid volume value.
A computer-readable recording medium having recorded thereon a program for executing a method of measuring a volume of liquid, the method comprising:
- receiving a first capacitance value representing a first capacitance between first metal plates attached to a liquid storage and a second capacitance value representing a second capacitance between second metal plates attached to the liquid storage;
- obtaining a first liquid volume value corresponding to the first capacitance value and a second liquid volume value corresponding to the second capacitance value;
- and
- calculating a volume of liquid that remains in the liquid storage by combining a plurality of liquid volume values including the first liquid volume value and the second liquid volume value.
An apparatus for measuring a volume of liquid, the apparatus comprising:
- a first pair of metal plates attached to a liquid storage for measurement of a first capacitance;
- a second pair of metal plates attached to the liquid storage for measurement of a second capacitance;
- and
- a processor that calculates a volume of liquid that remains in the liquid storage based on the first capacitance and the second capacitance.
A fuel cell system, comprising:
- a first pair of metal plates attached to a fuel storage for measurement of first capacitance;
- a second pair of metal plates attached to the fuel storage for measurement of second capacitance;
- and
- a controller that calculates a volume of fuel that remains in the fuel storage based on the first capacitance and the second capacitance.
Dependencies are inferred from the claim text.