摘要
针对某些工业现场布线困难和分布分散等问题,设计了一种基于WIA-PA技术以高性能、低功耗的16位微控制器MSP430F5438A为核心的无线温度变送器。搭建了热电偶测温电路,对热电偶进行冷端补偿,设计无线模块和温度采集模块的通信程序,并对温度采集进行测试。测试结果表明,该无线温度变送器通信稳定可靠,且测量精度能保持在5‰以内。
Aiming at difficult wiring and scattered distribution in some industrial fields, this paper briefly intro- duces the WIA-PA technology, and designs a wireless temperature transducer based on WIA-PA with the high per- formance and low power consumption 16-bit MCU MSP430F5438A as the core. Thermocouple temperature measure- ment circuit is built for compensation of the thermocouple at the cold terminal. The designs of communication pro- gram between wireless and temperature acquisition module are given. Tests on temperature acquisition prove that the wireless temperature transducer can communicate stably and reliably with a measuring precision within 5%e.
出处
《电子科技》
2015年第9期81-85,共5页
Electronic Science and Technology
