Title :
Analyzing and improvement of the thermopile output signal noise ratio of a calorimeter
Author :
Yong Li ; Xiaohai Cui ; Xiaoxun Gao ; Weijie Sun
Author_Institution :
Nat. Inst. of Metrol. of China, Beijing, China
Abstract :
At present, thermoelectric technique is a popular method to setup national RF power standards. From the measurement, the Lab´s temperature stability has strong affected the thermopile´s output voltage. In this paper, the reason of the influence to calorimeter´s measurement from Lab´s temperature change is analyzed. We use the Average Temperature Block (ATB) to eliminate the affection. The measurement results of before and after ATB used is presented.
Keywords :
calorimeters; temperature measurement; thermopiles; ATB; average temperature block; calorimeter measurement; national RF power standard; temperature stability; thermoelectric technique; thermopile output signal noise ratio; Lead; Power measurement; Average Temperature Block; Calorimeter; microwave power; thermoelectric;
Conference_Titel :
Microwave Measurement Conference (ARFTG), 2014 83rd ARFTG
Conference_Location :
Tampa, FL
DOI :
10.1109/ARFTG.2014.6899520
