| 一种铂电阻高准确度测温方法 |
| |
| 引用本文： | 潘文诚. 一种铂电阻高准确度测温方法[J]. 传感器与微系统, 2003, 22(11): 69-71 |
| |
| 作者姓名： | 潘文诚 |
| |
| 作者单位： | 浙江科技学院,信息与电气工程学系,浙江,杭州,310012 |
| |
| 摘 要： | 介绍了一种应用铂电阻进行高准确度测温的方法。24位的Σ-Δ型A/D转换器AD7714的应用保证了0.001℃的测量分辨力,温度的采集采用了极其简洁的铂电阻平衡桥电路,测量软件中的对分搜索查表法使铂电阻测温不再存在T/R转换的非线性误差,用软件方法进行了测量值的零点和满幅的调准,使测量误差在全量程小于0.02℃。
|
| 关 键 词： | 铂电阻 温度测量 准确度 查表线性化 软件校准 |
| 文章编号： | 1000-9787(2003)11-0069-03 |
| 修稿时间： | 2003-05-29 |
A method of high accuracy temperature measurement with platinum resistor |
| |
| Abstract: | A method of proceeding high accuracy temperature measurement with platinum resistor is introduced. A resolution of 0.001#℃is guaranteed through the application of 24 bits Σ-Δ#A/D converter AD7714. A very simple balanced bridge of platinum resistor is used in the temperature sampling. Because the bisection searching method in the measuring software is used,there is no nonlinear error of T/R converting on the temperature measuring with platinum resistor. A full scale error of no more than 0.02#℃ is reached through calibrating the offset and gained with software. |
| |
| Keywords: | platinum resistor temperature measurement accuracy check form method linearity adjusting in software |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
