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基于二极管等效电路的温度测试电路设计
资料介绍
通过对二极管的结构及正向温度特性进行研究分析,解决了其正向电压随温度变化非线形性的问题,通过小于的恒流源电路设计,解决了等效二极管自热问题对被测温度的影响,最后进行冰水混合物0摄氏度的温度校准,实现了本电路能直接与普通万用表电压档连接,即能准确测试温度值的效果。
Through the analysis of a diode structure and positive temperature characteristic,solve the problem of the temperature change of nonlinear.Through the design of the less than 100μA constant current source,solve the temperature influence for the diode's fever himself.Then,realize the temperature calibration by 0 degree in a mixture of ice.At last,implement the accurately test of temperature after this circuit directly connect to the ordinary multimeter.This circuit design is clever,the cost is low.
部分文件列表
| 文件名 | 大小 |
| 基于二极管等效电路的温度测试电路设计.pdf | 259K |
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