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At low temperatures, the thermal conductivity of helium is significantly higher than that of other gases. Therefore, using helium as a heat transfer medium can effectively transfer cold. The fully automatic helium shock-absorbing low-temperature optical thermostat developed by Fermion Instruments uses high-purity helium as the heat transfer medium between the cold head and the sample stage, effectively isolating the vibration of the refrigerator motor. The vibration displacement at the sample stage reaches the nanometer level, meeting the requirements of micro-area or ultra-low vibration measurement. The sample stage temperature range is 3K-350K, and the temperature stability is within 10mK, achieving accurate measurement at a specific temperature.
| ● Low operating cost: GM refrigerator is used to provide cooling capacity; | ● Convenient operation: Plug and play, stable operation for a long time; | ● Rapid temperature change: From room temperature to 4K, less than 3 hours; |
| ● Ultra-low temperature: The minimum stability of the sample stage can reach 3K; | ● Ultra-low vibration: Nano-level vibration; | ● Multiple functional modules are available |
| —————— Temperature drop curve at the damping end —————— | —————— Cooling capacity parameters of the damping end —————— |
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