新型霍尔式智能阀门定位器原理与设计

Automation＆Instrumentation2012(3)仪器仪表装置新型霍尔式智能阀门定位器原理与设计文章编号：1001-9944(2012)03-0016-04蔡明1，左汉锋2，刘兆1，孙积凯2（1.北京京仪集团有限责任公司，北京100022；2.山东省产品质量监督检验研究院，济南250100）摘要：目前，智能阀门定位器的位置反馈机构，多采用机械结构，存在磨损大、精度低、寿命短等缺点。基于霍尔传感器技术和新型压电阀控制技术，研制了一款国产新型霍尔式智能阀门定位器，实现了无接触精确测量。同时，该产品具有无机械磨损、滞后小、结构简单可靠、运行寿命长、精度高等诸多优点。设计中，研制了线性位移霍尔传感器，硬件电路中应用了超低功耗技术，控制算法中应用了模糊控制等智能控制技术。产品定位精度等性能得到了显著提升，其中，线性霍尔传感器设计及其低功耗应用技术，属于国内首创，产品整体水平具有行业领先优势。关键词：霍尔效应；霍尔传感器；模糊控制；智能控制；定位器中图分类号：TH138.52文献标志码：ADesignofNewModernSmartValvePositionerwithHallSensorFunctionCAIMing1，ZUOHan-feng2，LIUZhao1，SUNJi-kai2（1.BeijingInstrumentIndustryGroupCo.，Ltd.，Beijing100022，China；2.ShandongSupervisionandInspectionInstituteforProductQuality，Ji’nan250100，China）Abstract：Today，mostofthepositionerfeedbackframeworkbeingusedinsmartvalvelocalizershavebeenmadewithmechanism，therearesomedefectsinsuchequipment，includinghigherabrasion，lowerprecisionandshortlifeandsoon.BasedonHallsensortechnologyandonekindofintegrationalpiezovalvescontroltechnology，onenewkindofmodernsmartvalvepositionerwithHallsensorfunctionhavebeenmade，itisimpossibletodetectwithoutcontact.Atthesametime，therearemanyadvantagesinthefollowingfields，forexamples，nocontactbetweenthesensorandthemovingobject，notearandwear，smalllag，simplystructureandhighcredibility，runninginlongertime，andhigherpre-cisionsandmanyadvantagessoon.Indesigning，onekindofnewHallsensorwithlow-powerconsumptionandlineardisplacementcharacteristicshasbeenmadeforthefirsttimeinChina，superlow-powertechniquehasbeenusedinhardwaredesigning，therearealsomanyadvancedandintelligentcontrolmethodshavebeenappliedinsoft，includingfuzzycontroltechnology.Asaresult，thewholeleveloftheproductsincludinglocalizerprecisionhavebeenimprovedremarkably.Aboveall，theLinearHallsensorwithlow-powerconsumptionandlineardisplacementcharacteristics，shouldbeoriginatedindomesticmarket，thewholecharactersoftheproductsmaybeontopinthesamefield.Keywords：Halldominoeffect；Hallsensor；fuzzycontrol；intelligentcontrol；localizer收稿日期：2011-09-30；修订日期：2011-12-20作者简介：蔡明（1969-）