摘要
简要介绍了1-Wire总线协议的原理和数字温度传感器DS18B20以及超低功耗16位混合信号处理器MSP430F149的基本特性,结合上位机PC组成了一个多分支多通道精密温度测量系统。并给出实现多分支多通道温度测量的软件流程图以及测量结果的简要分析。整个系统结构简单,抗干扰能力强,性能稳定,测温精度达到0.0625℃,单处理器芯片可以实现40个测量点的数据采集。
The principle of 1-Wire bus protocol, characteristic of digital temperature sensor DS18B20 and the ultra low power mixed signal processor MSP430F149 are introduced. The multi-branch and multichannel precision temperature measurement system is designed combining the PC. The construction of whole system is simple with strong anti-disturbility and steady capability. The precision of temperation testing can reach to 0.0625℃, and one single MSP chip can accept the digital collection from 40 measure spots.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2008年第6期1235-1239,共5页
Nuclear Electronics & Detection Technology
