acknowledgements.docx
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acknowledgements.docx
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acknowledgements
acknowledgements
篇一:
tn901说明书TN9红外温度计模块用户手册目录1概述.....................................................................................................................................................................................3版本2004.7.........................................................................................................................................................................32理论基础.............................................................................................................................................................................42.1工作原理.......................................................................................................................................................................42.2特点...............................................................................................................................................................................52.3视场...............................................................................................................................................................................62.4发射率...........................................................................................................................................................................73规格.....................................................................................................................................................................................73.1极限值...........................................................................................................................................................................73.2直流参数1...................................................................................................................................................................73.3测试规范.......................................................................................................................................................................93.4TN0;TN9引脚排列....................................................................................................................................................104串行输出...........................................................................................................................................................................114.1框图.............................................................................................................................................................................114.2SPI时序.......................................................................................................................................................................124.2.1信息格式.............................................................................................................................................................134.2.2例子.....................................................................................................................................................................134.2.3怎么样修改发射率?
(怎么样修改发射率数据到EEPROM)..........................................................................145接口演示板:
HUB-D........................................................................................................................................................156PC接口程序......................................................................................................................................................................161概述本文描述了TNm(TN0;TN9)系列产品的使用方法。
版本2005.3版权:
版权所有。
XX,禁止全文或者部分复印该文件。
本文件的内容有修改不另行通知.LimitedWarranty:
Thisdatasheetcontainsinformationspecifictoproductsmanufacturedatthetimeofitspublication,Contentshereindonotconstituteawarranty.TrademarkAcknowledgements:
Alltrademarksarethepropertyoftheirrespectiveowners.2理论基础2.1工作原理Fig1.theInfraredRadiationSpectreumInfrared,justlikeanylightray,isanElectromagneticRadiation,withlowerfrequency(orlongerwavelength)thanvisuallight.Anythingaboveabsolutezero(-273.15degreesCelsiusor0degreesKelvin),radiatesintheinfrared.Evenicecube,snow,yourrefrigeratoremitinfrared.TheStefan-BoltzmannLaw,wherethetotalradiationenergyisproportionaltothefourthpoweroftheabsolutetemperatureandWienDisplacementLaw,theproductofthepeakwavelengthandthetemperatureisfoundtobeaconstant,areimplementedintheTNminfraredthermometermodule.TheinfraredradiationofmeasuretargetiscollectedbyainfraredmirrorthroughaIRfilterof5or8umcutinfrequencytotheinfraredthermopiledetector.ThedetectorsignalwillbeamplifiedanddigitalizebythelownoiseandhighlinearityOPandADconvertor.Theambienttemperaturesensor(usuallyincludedinthesamepackageasthethermopiledetector)issetinthespaceneartheopticalsystemtodetectthefastchangeoftheambienttemperature.Thesignalprocessingsectionreceivesthesignalsfromthesetemperaturesensorstocalculatethetargetsurfacetemperaturebyamathematicalalgorithm.2.2特点TNm红外温度计模块采用高灵敏度、高精度、的功耗的,保证了采用的优良特性。
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MEMS热电堆可以准确的测量出环境温度,采用温度补偿技术在TNm红外温度计模块上。
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ZyTemp开发出独有的集成了所有硬件的集成电路的组成了红外片上系统。
应用该创造性的红外片上系统(SoC)技术,TNm红外温度模块具有很高的集成度和性价比。
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ZyTemps的产品可以承受10℃的热冲击。
我们的产品擅长在宽范围温度变化环境中保持精度。
例如:
传统的红外测温仪温度变化带来的误差达到1.6℃,需要30分钟的稳定时间;而ZyTempsTNm产品误差仅仅是0.7℃,仅需要7分钟的稳定时间.?
TNm产品只需要3伏电源供电,而多数其他红外温度计需要9伏电压供电?
ZyTemp保证温度标准溯源倒NIST或者国际测量实验室.所有的TNm产品经过溯源的红外温度标准源校准,校准的数据和产品的序列号保存在模块上EEPROM内。
篇二:
Demotivation-影响及结果Demotivation:
AffectivestatesandlearningoutcomesJosephFalout,a,,JamesElwood,andMichaelHood,NihonUniversity,CollegeofScienceandTechnology,7-24-1Narashinodai,Funabashi,Chiba274-8501,JapanbTsukubaUniversity,1-1-1Tennoudai,Tsukaba,Ibaraki305-8577,JapanNihonUniversity,CollegeofCommerce,5-2-1Kinuta,Setagaya,Tokyo157-8570,cJapanAvailableonline23June2009.AbstractDemotivationcannegativelyinfluencethelearner’sattitudesandbehaviors,degradeclassroomgroupdynamicsandteacher’smotivation,andresultinlong-termandwidespreadnegativelearningoutcomes.900universityEFLlearnersweresurveyedtoinvestigatethedemotivatingfactorsinlearningEnglishasaforeignlanguage(EFL)inJapan,andtherelationshipbetweenpastdemotivatingexperiencesandpresentproficiencies.Affectivestatesandcapacitytoself-regulatelearningwerecomparedamonglearnerswithvaryingacademicinterests,experiences,andproficiencies.Demotivatingfactorsweregroupedintothreecategories:
externalconditionsofthelearningenvironment,internalconditionsofthelearner,andreactivebehaviorstodemotivatingexperiences.Internalandreactivefactorswereshowntocorrelatewithlong-termEFLlearningoutcomes.Findingsfromthisstudyindicatedthatbeginning,less-proficientlearnersinnon-Englishmajorswereleastlikelytocontroltheiraffectivestatestocopewithdemotivatingexperiences.Finally,thispaperdiscussesstepsthatmightpreventorminimizedemotivationandfacilitateremotivation.Keywords:
Motivation;Demotivation;Remotivation;Self-regulation;Grammar-translation1.Introduction―Motivationtotackleassignmentsvoluntarilyandwillinglyislacking,‖responded85%ofthe362deanssurveyedatninety-fivenationaluniversitiesinJapan,accountingforthenationally-perceiveddropinacademicperformanceatthetertiarylevel().Inafollow-upsurveyof33,432learnersfrom335publicandprivateuniversities,theaveragerespondentreportedalackinmotivationtostudyacrossallacademicsubjects().Demotivatedlearnersarearecurringtopicinacademicconferencesandteachers’roomsacrossJapan,particularlyregardingthelearningofEnglishasaforeignlanguage(EFL).Teachersrecognizethatmotivationisco-regulatedamongallthepeopleintheclassroom.Theyrealizehowonehighlymotivatedlearnercanpositivelyinfluencetheclassroomexperienceandhowonedemotivatedlearnercanhaveanoppositeeffect.Throughtheinterpersonalprocessesofgroupdynamics,onesubgroupdifferenceinthemotivationoftheirlearnersthroughmotivationalpractices(and).Thepurposeofthepresentstudyistoinvestigatetheunderlyingprocessesinvolvedindemotivationtohelpguidepolicymakers,administrators,andteacherstowardpreventingorminimizingitsharmfuleffectsonlearning.2.LiteraturereviewDemotivation,asdefinedby,isadecreaseordropinlevelofmotivation.Itdoesnotresultfrom(a)distractionsofamoreattractiveoption,(b)agraduallossofinterestacrossaperiodoftime,or(c)internaltriggers.Demotivationstartsfromanexternallocus,ademotivatingtrigger,beforeitbecomesaninternalizedprocess,andmotivationmustexistbeforetherecanbeasubsequentdecrease.Absenceofanymotivationisthestateofamotivation,markedbypassivity.Amotivatedpeoplefeelalackofcompetenceorcontrolovertheirexternalenvironments,afeelingofhelplessnesscausedbylackofcontingencybetweenbehaviorsandoutcomes().They―gothroughthemotionswithnosenseofintendingtodowhattheyaredoing‖untiltheyquittheactivity().catalogedwhatlearnersperceivedascausesoftheirdemotivationinuniversityclassroomsinavarietyofacademicsubjects.Incomparinglearnerattributionsofdemotivationandmotivation,theyfoundthattheabsenceofdemotivatorsintheclassroom—suchasunenthusiasticteaching,dissatisfactionwithgrading,andboringsubject—hadamorepositiveinfluenceonmotivationthanthepresenceofmotivatorssuchasanenthusiasticandinspiringteacher.Theresearchersconcludedthatteacherscouldpromotelearnermotivationsimplybypreventingdemotivation.Secondlanguage(L2)researchershavesoughttoidentifyattributionsofdemotivationspeci
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