YANG Shu-lian. Determination of the time constant of thermoresistance[J]. 2006, (5): 73-74+77. DOI: 10.13873/j.1000-97872006.05.024.
热电阻时间常数的测试
摘要
热电阻的时间常数由它的物理特性来表征
用电加热的方法确定时间常数引入了测量误差。提出了把正负阶跃电流加到热电阻上测定时间常数的方法
实验结果表明:该法比电加热法精度提高了5%。
Abstract
The time constant of a thermoresistance is defined in term of its physical properties.The time constant determination using electrical heating can lead to measurement error.The method that the time constant is measured by using step current to the thermoresistance is presented.The test results show that the degree of accuracy decreases 5 % than electrical heating method.