基于ADuC824的智能厚膜微压力变送器的设计

针对厚膜微压力传感器的特点，介绍了基于ADuC824的智能厚膜微压力变送器的硬件设计和软件设计，并对变送器的非线性和温度补偿方法进行了探讨。结果表明：利用单片机的强大功能，实现了智能变送器的非线性校正、零点和温度补偿，具有电路结构简单、稳定性好、误差小、测量精度高等特点。  Design　of　Intelligent　Thick-flim　Micro-pressure　Transmitter　Based　on　ADuC824

MA　Jing-hua，MA　Yi-wu，HUANG　Ying，HU　Zhang

（1.State　Key　Laboratory　of　Trarsducer　Techndogy，Institute　of　Intelligent　Machine，Chinese　Academy　of　Science，Hefei　230031，China；2.Hefei　University　of　Technology，Hefei　230009，China；3.Hefei　Tianshen　Instrument　Co.Ltd，Hefei　230009，China）

Abstract：Introdues　the　intelligent　thickfilm　micropressure　transmitter　based　on　ADuC824.The　design　of　hardware　and　software　are　described　concretely.The　nonlinear　compensation　and　temperature　compensation　are　introduced.By　means　of　the　single　chip　microcomputer，the　results　show　that　it　has　realized　nonlinear　correct，zero　point，temperature　compensation　for　intellectual　transmitter，and　has　simple　structure　in　circuit，good　stability，little　error　and　high　precision　of　measurement，etc.


Key　Words：ADuC824；Intelligent；Thick-film　Micro-pressure　Transmittercate　with　computor