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1. chinaXiv:201703.00011 [pdf]

Calorimetric Power Measurements in the EAST ECRH System

Weiye Xu
Subjects: Physics >> Nuclear Physics

In this paper, the calorimetric power measurement method for electron cyclotron resonance heating system on EAST are presented. This method requires measurement of the water flow through the cooling circuits and the input and output water temperatures in each cooling circuit. Usually, the inlet water temperature is controlled to be stable to get more accurate results. The influence of the inlet water temperature change on the measurement results is analyzed for the first time in this paper. A novel temperature calibration method is proposed also. This kind of calibration method is accurate and effective, and can be easily implemented.

submitted time 2017-08-28 Hits3443Downloads1616 Comment 0

2. chinaXiv:201702.00158 [pdf]

毫米波检波二极管特性与检波原理

徐伟业
Subjects: Physics >> Interdisciplinary Physics and Related Areas of Science and Technology

毫米波检波二极管是用于回旋管功率实时监测的重要器件,本文对二极管特性进行了讨论。通过对二极管特性的分析,给出了二极管模型参数的简易获得方法,极大的方便了二极管测试,并可以通过测试的结果建立二极管等效电路模型,以便进行检波器的设计。本文利用泰勒展开分析了二极管小信号检波原理,利用二极管折线模型分析了二极管大信号检波原理;并从二极管电流电压特性方程出发,推导了小信号和大信号检波原理。本文系统地分析了二极管检波原理,提出了二极管模型参数提取方法,为检波电路的设计提供了依据。

submitted time 2017-02-16 Hits3544Downloads2120 Comment 0

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