微波辐射计定标系统中低温测量装置

Low Temperature Measuring Device in the Calibration System of Microwave Radiometer

详细讨论了低温温度测量系统的设计和实现，并在大量模拟实验研究的基础上对整个设计方案的可行性进行了充分的论证．

The design and realization of a low temperature measuring system are discussed. The feasibility of the design scheme has been sufficiently proved with a large amount of experimental studies. Based on basic principles of the sensor and its related circuits, using computer aided method, a scheme to realize the resistance temperature conversion is proposed with platinum resistance as sensor and bridge circuits as indicating instruments. The parameters and the structure of the low temperature measuring system are determined.