【作者】 徐风雨； 潘衡； 季中敏；

【Author】 XU Feng-yu,PAN Heng,JI Zhong-min (Institute of Cryogenic and Superconducting Technology,Harbin Institute of Technology,Harbin 150080,China)

【机构】 哈尔滨工业大学低温与超导技术研究所；

【摘要】 由于可测量4K(-269℃)温度的低温传感器和变送器价格昂贵,使得低温温度信号采集成为低温控制系统硬件预算中最重要的一部分。综合考虑多种低温温度信号采集方案和低温测控系统的特点,提出了一种低温温度信号采集方案能够在不增加系统复杂性、不降低检测方式可靠性的前提下降低低温温度信号采集的造价。对该方案的软硬件实现进行了详细的介绍。更多还原

【Abstract】 Cryogenic temperature signal acquisition is an important part of the hardware budget of the cryogenic control system,because of expansive 4K-measurable temperature sensor and transmitter.A method is presented which is able to highly reduce the cost of cryogenic temperature signal acquisition,under the condition of maintaining the simplicity and reliability of the control system.The software and hardware implementation of this method are introduced in detail.更多还原