Method of and apparatus for measuring liquid

An apparatus for controlling the flow of a set amount of liquid through a valve, the apparatus comprising:

• (a) means for determining an initial degree of opening of the valve for controlling a flow-rate of the liquid using fuzzy control in accordance with a prescribed fuzzy rule based on flow-rate characteristics of the valve and the set amount;
• (b) means for opening the valve by the initial opening degree to allow the liquid to flow through the valve;
• (c) means for obtaining an actual measurement value corresponding to the amount of the liquid which as flowed through the valve;
• (d) means for determining a next degree of opening of the valve using fuzzy control in accordance with the prescribed fuzzy rule based on the actual measurement value and the set amount;
• and
• (e) means for changing the degree of opening of the valve to the next degree of opening.

An apparatus for measuring liquid and for mixing at least first and second liquids, the apparatus comprising:

• (a) first means for containing the first liquids;
• (b) second means for containing the second liquids:
• (c) means for receiving respective amounts of the first and second liquids;
• (d) first means for defining a flow path between said first containing means and said receiving means:
• (e) second means for defining a flow path between said second containing means and said receiving means;
• (f) first means for regulating flow-rate of the first liquid along said first flow path means to said means for receiving said first means for regulating having a degree of opening corresponding to the flow-rate;
• (g) second means for regulating flow-rate of the second liquid along said second flow path means to said means for receiving said second means for regulating having a degree of opening corresponding to the flow-rate;
• (h) means for obtaining an actual measured value corresponding to an amount of liquid received by said means f r receiving:
• and
• (i) a control mechanism including:
• (1) means for determining the degree of opening of the first and second means for regulating the degree of opening of said first means for regulating being based on the actual measured amount of liquid received by said means for receiving and a first set value and a degree of opening of said second means for receiving being based on the actual measured amount of liquid received by said means for receiving and a second set value and
• (2) means for controlling the respective amounts of opening of the first and second means for regulating in response to the determinations of the respective amounts of opening.

An apparatus for measuring liquid and for mixing a plurality of liquids, the apparatus comprising:

• (1) a plurality of liquid transfer devices, each of said devices comprising:
• (a) containing means for containing a liquid of said plurality of liquids;
• (b) means for defining a flow path for the liquid from said means for containing;
• and
• (c) means for regulating flow-rate of the liquid through said flow path:
• (2) means for receiving respective amounts of each of said plurality of liquids:
• (3) means for connecting each said flow path with said receiving means;
• (4) means for obtaining an actual measured value corresponding to an amount of liquid received by said means for receiving:
• and
• (5) a control mechanism including:
• (a) means for determining an opening degree of each said means for regulating, said degree of opening corresponding to the flow-rate of the liquid through said means for regulating, the determination being based on the actual measured value of liquid in said means for receiving and a set value;
• and
• (b) means for controlling the amount of opening of said means for regulating in response to the determination of the amount of opening.

A device for mixing a plurality of liquids after cumulatively measuring the liquids, the device comprising:

• (a) means for receiving respective amounts of each of said plurality of liquids;
• (b) a plurality of liquid transfer mechanisms comprising:
• (1) containing means for containing one liquid of said plurality of liquids;
• (2) means for defining flow paths between each of said means for containing and said means for receiving;
• (3) means for regulating flow-rate of the liquid through said flow path, said regulating means being disposed between said means for containing and said means for receiving;
• (c) means for obtaining an actual measured value corresponding to an amount of liquid received by said means for receiving;
• and
• (d) a control mechanism including:
• (1) means for determining an opening degree of each means for regulating said degree of opening corresponding to the flow-rate of the liquid through said means for regulating, the determination being based on the actual measured value of liquid in said means for receiving and a set value;
• and
• (2) means for controlling the amount of opening of each said means for regulating in response to the determination of the amount of opening, wherein said device further comprises means for mixing the received liquid.