System for measuring dye concentration in liquids

A method comprising:

• emitting first electromagnetic radiation having a first wavelength through a first end of a tube for a first duration of time, the tube being filled with a liquid and a dye diluted in the liquid to a first concentration;
• ceasing the emission of the first electromagnetic radiation for a second duration of time following the first duration of time;
• detecting a first strength of second electromagnetic radiation emitted by a luminophor coated on a screen at a second end of the tube at the conclusion of the second duration of time, the luminophor having luminescent properties such that the first electromagnetic radiation causes the luminophor to emit the second electromagnetic radiation having a second wavelength, wherein the second electromagnetic radiation is partially absorbed by the dye and the amount of the second electromagnetic radiation absorbed by the dye depends on the first concentration;
• emitting third electromagnetic radiation having a third wavelength through the first end of the tube for a third duration of time after detecting the first strength;
• ceasing the emission of the third electromagnetic radiation for a fourth duration of time following the third duration of time
• detecting a second strength of fourth electromagnetic radiation emitted by the luminophor at the conclusion of the fourth duration of time, the luminophor having luminescent properties such that the third electromagnetic radiation causes the luminophor to emit the fourth electromagnetic radiation having a fourth wavelength, wherein the fourth electromagnetic radiation is not absorbed by the dye;
• and
• determining the first concentration based on a ratio between the first strength and the second strength.

A method comprising:

• emitting first electromagnetic radiation having a first wavelength through a first end of a tube for a first duration of time, the tube being filled with a liquid and a dye diluted in the liquid to a first concentration, the dye having luminescent properties such that the first electromagnetic radiation causes the dye to emit second electromagnetic radiation having a second wavelength;
• ceasing the emission of the first electromagnetic radiation for a second duration of time following the first duration of time;
• detecting a first strength of third electromagnetic radiation emitted by a luminophor coated on a screen at a second end of the tube at the conclusion of the second duration of time, the luminophor having luminescent properties such that the second electromagnetic radiation causes the luminophor to emit the third electromagnetic radiation having a third wavelength, wherein the third electromagnetic radiation is not absorbed by the dye;
• and
• determining the first concentration based on the first strength.