Abstract: Cryocooler health monitoring systems and methods are provided. In one example, a method includes determining, for each setpoint temperature of a plurality of setpoint temperatures, a respective power applied to a cryocooler to set a cold tip of the cryocooler to the setpoint temperature. The method further includes determining a first load line associated with the cold tip based on the plurality of setpoint temperatures and the respective powers applied to the cryocooler. The method further includes determining a health metric associated with the cold tip based on the first load line and a reference load line associated with the cryocooler. Related devices and systems are also provided.

Abstract: Cryocooler health monitoring systems and methods are provided. In one example, a method includes determining, for each setpoint temperature of a plurality of setpoint temperatures, a respective power applied to a cryocooler to set a cold tip of the cryocooler to the setpoint temperature. The method further includes determining a first load line associated with the cold tip based on the plurality of setpoint temperatures and the respective powers applied to the cryocooler. The method further includes determining a health metric associated with the cold tip based on the first load line and a reference load line associated with the cryocooler. Related devices and systems are also provided.

Abstract: Various techniques are provided to maintain drive belts at substantially constant tension over a wide range of conditions. In one embodiment, a system includes a housing, a bracket secured to the housing, first and second pulleys, and a belt engaged in tension with the first and second pulleys. The first and second pulleys are suspended from the housing through the bracket to reduce effects of thermal expansion of the housing on the belt tension. Other systems and related methods are also provided.

Abstract: Various techniques are provided to maintain drive belts at substantially constant tension over a wide range of conditions. In one embodiment, a system includes a housing, a bracket secured to the housing, first and second pulleys, and a belt engaged in tension with the first and second pulleys. The first and second pulleys are suspended from the housing through the bracket to reduce effects of thermal expansion of the housing on the belt tension. Other systems and related methods are also provided.