A mechanical heat switch is used to control cooling power between a cold heat sink and a thermally isolated or semi-isolated stage. Adjustment of the heat switch allows control of the thermal conduction between the heat sink and the stage. Heat switches are most commonly used in conjunction with a PID loop controlled temperature sensor and heater circuit to provide precise and stable temperature control.
- Simple manual operation
- Precise and stable temperature control
- Reduced cryogen consumption at elevated temperatures
A filter/aperture wheel is used to hold and rotate optical elements within the cryogenic vacuum environment. We have several tried and true designs that can be used to fit a large range of applications. These mechanisms can be simple manual driven wheels that use an external control rod with a counter and detents or more complicated motor controlled assemblies that come with a software interface. Our filter/aperture wheels are designed to accommodate your application’s requirements for filter/aperture size, number of positions, and actuation method.
- Solutions for all temperature ranges
- Manual or Automatic operation
- Low thermal load