基于RS485与C8051F350芯片实现远程高精度温度测量

Remote High Accuracy Temperature Measurement Based on the RS485 and Chip of C8051F350

本文介绍了如何采用C8051F350芯片基于RS485串行总线接口实现远程高精度温度测量,并采用多项式曲线拟和结合补偿误差查表插值的方法完成了铂电阻阻值-温度转换的数据处理。系统简单可靠,精度高,并易于远程组网测量,具有很大的实用性。

The paper introduces the software and hardware of remote high accuracy temperature measuring based on the RS485 serial bus interface and chip of CS051F350,completed the data processing of Resistance-Temperature conversion which uses polynomial curve and insert value checking table to compensate the error. This system is reliable and easy to remote measure and high accuracy, with far-ranging practicability.