基于单片机的铜热电阻传感器基本参数测试  

Basic parameter test of copper thermal resistance sensor based on SCM

作　　者：陈虹丽[1] 牛佳林 彭辉[1] 

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001 [2]中国飞行试验研究院,陕西西安710089

出　　处：《实验技术与管理》2018年第3期29-31,34,共4页Experimental Technology and Management

基　　金：国家自然科学基金项目(61371172);黑龙江省科学基金项目(F2017008);黑龙江省博士后科研启动基金项目(LBHQ10140)

摘　　要：设计制作了符合实验教学要求的铜热电阻传感器,进行了基本参数测试以及在直流电桥、差动放大电路下铜热电阻温度测量及误差分析。利用铜热电阻以及阻值固定的电阻搭建桥式电路,将铜热电阻阻值变化量转化为相应电压值;然后通过仪用放大器将采集到的电压信号进行放大,再通过51单片机、A/D转换与显示电路搭建的电压采集系统对电压信号进行采集和显示。此外,设计一个模拟加热炉系统以提供不同温度给铜热电阻,从而进行基本参数测试。By taking the copper thermal resistance sensor as the object,the production and basic parameter test of the copper thermal resistance sensor which meets the requirements of the experimental teaching are designed,and the temperature measurement and error analysis of the copper thermal resistance under the DC bridge and differential amplifier circuit are carried out.A bridge circuit is established by using the copper thermal resistance and value-fixed resistance,and then the change of the resistance value of the copper thermal resistance is converted to the corresponding voltage value.The acquired voltage signal is amplified through the design of an instrumentation amplifier,and through the voltage acquisition system set up by the 51 SCM,A/D conversion and display circuit,the voltage signal is acquired and displayed.In addition,a simulated heating furnace system is designed to provide the copper thermal resistance at different temperatures so as to test the basic parameters.

关 键 词：铜热电阻传感器 51单片机 A/D转换 模拟加热炉 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]