| 一种基于555时基芯片的数字化测温电路 |
| |
| 引用本文： | 王新辉. 一种基于555时基芯片的数字化测温电路[J]. 组合机床与自动化加工技术, 2005, 0(3): 52-53,55 |
| |
| 作者姓名： | 王新辉 |
| |
| 作者单位： | 长沙大学,应用物理与电子技术系,长沙,410003 |
| |
| 摘 要： | 文章介绍了一种基于555时基集成电路的数字化温度测量电路及其工作原理.由热电阻感受温度的高低,输出电阻的变化量,555多谐振荡电路将测量到的电阻变化量转换为脉冲宽度的变化,通过单片机定时器测出脉冲宽度,由脉冲宽度查表即可求出被测温度.电路既可本地显示测量数据,又具有数据远传的功能.
|
| 关 键 词： | 温度测量 传感器 数字测量 555时基电路 |
| 文章编号： | 1001-2265(2005)03-0052-02 |
A Digital Temperature Measure Circuit Based on 555 Time Base Chip |
| |
| WANG Xin-hui. A Digital Temperature Measure Circuit Based on 555 Time Base Chip[J]. Modular Machine Tool & Automatic Manufacturing Technique, 2005, 0(3): 52-53,55 |
| |
| Authors: | WANG Xin-hui |
| |
| Abstract: | The paper introduces a kind of digital temperature measure circuit based on 555 time base integrated circuit and its operation principle. The thermal resistance senses temperature and changes its electric resistance, the surge pulse-width of 555 integrated circuit is changed according to the electric resistance varieties, and the surge pulse-width may be measured by timer of MCU, and the temperature is found from table with pulse-width. This circuit may display measure data and may transfer the data far away also. |
| |
| Keywords: | temperature measure sensor digital measure 555 time base circuit |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
