Continuous Flow Thermostat
The continuous flow thermostat can achieve a wide temperature range: from 4K to 450K, and can reduce the temperature to ~2K. The sample is in a vacuum and is cooled by heat conduction. The sample space is large and can be equipped with a variety of sample holders to test various thin films, blocks, powders and liquid samples. The refrigerant consumption is low. Using liquid helium to cool from room temperature to 5K only consumes 0.4L of liquid helium, and using liquid nitrogen to maintain 80K consumes 0.1L/h. It comes standard with 4 optical windows.
The continuous-flow cryostat enables precise temperature control within the temperature range of 4K to 450K (liquid helium) and 78K to 450K (liquid nitrogen). To meet customers' electrical testing needs, the cryostat can be configured with various electrical leads, such as Ph-Br wires, coaxial cables, and triaxial cables, according to experimental requirements. A variety of sample holders are also available, including optical, resistance, probe, liquid, and powder sample holders.
The cryostat comes standard with four clear quartz windows, transmitting wavelengths from the ultraviolet to the near-infrared. Other window materials are available to accommodate testing across a wide spectral range, from the far/mid-infrared, ultraviolet, and X-rays. The cryostat features a built-in heater and high-precision temperature sensor. Through a matching transfer line and liquid nitrogen/liquid helium dewar, the continuously flowing refrigerant (liquid helium or liquid nitrogen) absorbs heat through evaporation, acting as a cooling source to lower the sample holder temperature. This, combined with an external thermostat, enables precise temperature control and control.
• Wide temperature range: 4K to 450K, with reduced temperature down to ~2K
• Samples are cooled in a vacuum using heat conduction
• Large sample space and compatible with a variety of sample holders, enabling testing of a wide range of thin films, bulk materials, powders, and liquids
• Low cryogen consumption: Using liquid helium to cool from room temperature to 5K consumes only 0.4L of liquid helium, while using liquid nitrogen to maintain 80K consumes 0.1L/h
• Standard four optical windows with a 38mm viewing range
• Equipped with a temperature control system
• Supports standard optical sample holders, powder sample holders, liquid sample holders, resistor sample holders, probe sample holders, and resistor sample holders; a variety of sample holders are available
• The sample chamber features a quick-release clamp design for easy sample replacement
• Compact size facilitates integration into commercial spectrometers
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Closed-loop thermostat
The 4K series closed-circuit thermostats offer a wide temperature range from 4 K to 325 K (500 K or 800 K optional). Samples are kept in a vacuum and cooled by heat conduction. They feature ample sample space and can be combined with a variety of sample holders to test a variety of thin films, bulk materials, powders, and liquids. Four optical windows are standard.
Closed-loop thermostat
The 1.5K series closed-cycle cryostats offer continuous temperature control from 1.5K to 325K. They feature ample sample space and can be fitted with a variety of sample holders, enabling testing of a wide range of thin films, bulk materials, powders, and liquids. The aluminum vacuum housing and radiation shield feature a segmented design for fast sample changes. Equipped with a closed-cycle refrigerator, the built-in heater and temperature sensor work in conjunction with an external thermostat to achieve temperature control.
Liquid nitrogen storage thermostat
Liquid nitrogen storage cryostat offers a wide temperature range from 78 K to 500 K (800 K optional, with pump-down down to ~65 K). Samples are cooled in a vacuum using heat conduction. The large sample compartment accommodates a variety of sample holders, allowing testing of a wide range of thin films, bulk materials, powders, and liquid samples. The 0.4 L liquid nitrogen storage capacity maintains low temperatures for up to 5 hours, and liquid nitrogen can be refilled without disrupting the experiment.