CAJ | 학술논문

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。
침대모사공업현장포선곤난화분포분산등문제，설계료일충기우WIA－PA기술이고성능、저공모적16위미공제기MSP430F5438A위핵심적무선온도변송기。탑건료열전우측온전로，대열전우진행랭단보상，설계무선모괴화온도채집모괴적통신정서，병대온도채집진행측시。측시결과표명，해무선온도변송기통신은정가고，차측량정도능보지재5‰이내。
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‰.