Drop and drip measurement

A system for calculating a volume of an individual falling drop by analyzing electromagnetic radiation (EMR) reception, said system comprising:

• an electromagnetic radiation (EMR) source adapted to transmit an EMR in one or more collimated beams to a restricted horizontal planar area, wherein said collimated beams span a width that exceeds a width of a vertical cross section of a center axis of a drop falling along a falling drop path;
• an EMR sensor positioned to capture said EMR, wherein said EMR source and said EMR sensor are positioned on a common vertical axis such that said EMR transmitted by said EMR source towards said drop is reflected by said drop and directed towards said EMR sensor;
• a program store storing code;
• and
• a processor coupled to the program store and said EMR sensor for executing said stored code, said code comprising:
• code instructions for acquiring a plurality of outputs of said EMR sensor;
• code instructions for calculating a plurality of widths along a vertical axis of said drop, each one of said plurality of widths is calculated according to one of said plurality of outputs;
• code instructions for calculating a volume of said drop by combining said plurality of widths and a velocity of said drop when said drop is falling along said falling path;
• code instructions for detecting, based on said plurality of calculated widths, at least one image of said drop;
• code instructions for comparing said at least one image to a respective image of at least one of a plurality of exemplary drops of different content types of liquid;
• code instructions for identifying, according to said comparison, one of said different content types as a liquid type of content of said drop;
• and
• code instructions for controlling a flow rate of a liquid delivering device, according to said calculated volume.