Cryocooler health monitoring systems and methods

A method for monitoring a health of a refrigeration system, the method comprising:

• determining, for each setpoint temperature of a plurality of setpoint temperatures, a respective power applied to a cryocooler of the refrigeration system to set a cold tip of the cryocooler to the setpoint temperature, wherein the determining comprises, for each setpoint temperature:
• applying a power to the cryocooler;
• measuring a temperature of the cold tip in response to the applied power;
• adjusting the applied power;
• and
• repeating the applying, the measuring, and the adjusting until the measured temperature of the cryocooler is the setpoint temperature to determine the power applied to the cryocooler to set the cold tip to the setpoint temperature;
• determining, by a processing circuit of the refrigeration system, a first load line associated with the cold tip based on the plurality of setpoint temperatures and the respective powers applied to the cryocooler;
• and
• determining, by the processing circuit, a health metric associated with the cold tip based on the first load line and a reference load line associated with the cryocooler.