Additive delivery system with sensors

An additive management system, comprising:

• an additive selection system, configured to select one of a plurality of additives for dispensing into a working fluid;
• an additive dispensing system, comprising a housing, and a sensing head moveably located within the housing, the sensing head comprising a sensing head top and a sensing head bottom, a fluid parameter sensor mounted on one of the sensing head top and the sensing head bottom, and at least one nozzle located in the other of the sensing head top and the sensing head bottom, the nozzle aimed at the fluid parameter sensor, wherein the housing and the sensing head together define a fluid sensing chamber;
• an additive delivery system, configured to deliver the selected additive to the additive dispensing system;
• and
• a processor configured to cause a portion of the sensing head to extend beyond the housing to thereby open the sensing chamber to cause the fluid sensing chamber to receive a sample of the working fluid and to cause a portion of the sensing head to retract into the housing to thereby close the sensing chamber, to receive working fluid measurement signals from the fluid parameter sensor corresponding with values of fluid parameters of the working fluid in the sensing chamber, and to determine one or more values for one or more fluid parameters of the working fluid based on the received working fluid measurement signals,
• wherein the processor is further configured to cause the additive delivery system to deliver the selected additive to the additive dispensing system and to cause the additive dispensing system to dispense the selected additive into the working fluid through the fluid sensing chamber.