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Copyright of China Cleaning Industry / Zhongguo Xidi Yongpin Gongye is the property of China Cleaning Industry Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of China Cleaning Industry / Zhongguo Xidi Yongpin Gongye is the property of China Cleaning Industry Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to improve the temperature control precision of the detector and other spacecraft and reduce the temperature fluctuation accuracy, a one-way micro expansion type heat switch was designed based on thermal expansion and contraction of metal. The characterization parameter was get to analysis the two-dimensional steady-state thermal modeling. Then, an experimental setup was designed to simulate the actual working conditions of thermal .switch, and switch operating status and related performance parameters were measured under different heat power. When the power is up to 0.4W. disconnected resistance is 230.46 K/W. The power is up to SOW, the closed thermal resistance of switch is 0.302 2 K/W, and switch ratio is 762. 6. The results shown the experiment data are in good agreement with the theoretical calculations. [ABSTRACT FROM AUTHOR]