Types of Sensors各种类型的传感器外文翻译.docx

Types of Sensors各种类型的传感器外文翻译.docx

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TypesofSensors各种类型的传感器外文翻译

TypesofSensors

Ⅰ.Pressuresensors

ModelFDS05-PDiffusedSiliconPressureSensor:

Teeintelligentindustrialpressuresensoradoptstheimportedsensorofhighquality.withgreatdefendinggrade，itcanworkinanycausticcondition.Bylinkingexternal,linkingexternalcanola，itcanmeasurethetemperatureofthemediumwithhightemperature.Itisstableandcapableoflimitingcurrentinpositivedirectionandprotectinginnegativedirection.Itiswiththeabilityofintelligenttemperatureandlinearitycompensationwiththetemperatureof一40℃~+140℃.Itiswidelyusedinpetrifaction,metallurgy,electricpowerandlightspinning.

Ⅱ.Loadcell&torquesensors

SuspendedarmtypeBx5:

Itselastomericadoptscutting（orcurved）hanginggirderconfiguration,soitislowinheightandwithhighconfigurationintensity.Itisgoodagainstfatigueandeccentricity.Itisstableandreliableinproductperformances，highinprecision,andconvenientinmount-upanduse.Itissuitableforforcemeasurementandweightingsuchasstrapbalance,chutebalance,flatbalanceandgroundbalance.Loadingtype:

pulloxpush.

Ⅲ.Temp&humsensors

MoteMSTBTemperatureTransducer:

Asensormoduleisfittedinthetemperaturetrans-ducker’sterminalblock，whichusesaspecificchiptomagnifyandhaslinearizationapproachtoimprovethemeasurementprecision.Tiecoldjunctionneedsnocompensation.Saitiswithhighdirectloadcapacity,largetransferdistanceandstrongabilityofants-externalinterference。

Itiswidelyusedfortemperaturemeasurementinelectricpower,petroleum,chemicals，buildingmaterials,andscientificresearch.

Ⅳ.Displacementsensors

EddyCurrentDisplacementVibrationSensorST-1:

Electricvortexsensorsarenon-con-tactdisplacementandvibration，sensorswhichadopthighfrequencyelectricvortexeffectprinciple.theycandonon-contactmeasurementforthemovingparametersofthemovingmetalobject,especiallyfortheobjectswithinmeasurementrange.Theyareusedfortong-termcheckingandmeasuringofvibrationsanddisplacementinmechanismandheatdilationofvortexandmachineshell，on-lineautomaticcheckingandautomaticcontrollingofproductionline，measurementofmanifoldsmalldistanceendsmallmovinginscientificresearchandsoon.Atpresent,theyarewidelyusedinenergysources.chemicals,medicine，vehicles,metallurgy，ranchingmaking,warindustry,scientificresearch,teachingandotherfields.

V.Flowsensors

VortexFlowsensorLUGB-A:

LUGB-Aseriesintelligentvortexflowsensorsarelocaledisplayinstrumentswhosemaincomponentsarevortexflowsensorandhard-coreissingechipmicroprocessorofmicro-power.Theproductsadoptmicrocomputerandmicro-powertechniques,Theyaresaronginfunction,compactinconfigurationandsimpleinmanipulation.theyaregreatinstruments

forflowmeasurementofliquid,gasandsteaminpetroleum,chemicals,electricpower,metallurgyandotherfields.

Ⅵ.Liquid-levelsensors

UltrasonicAirborneLevelMeterHD700:

TheultrasonicliquidlevelmeterHD700adoptstheprincipleofmeasurementoftime-of-arrivaltomeasuretheheightofthelevel。

Itisnon-contactinstrument,goodresistancetodisturbanceandcausticity，easytomount-up，maintainandusesuitableforbeingusedinsophisticatedenvironmentoftheindustrylocale.Itadoptsthespecificultrasonicsensorwhichhassmallpowerandreceivingandsendinginsmallblandarea.Itishighinprecision，stablewithline-measurement，capableoftemperaturecompensationandagainsttocausticity，Theheightofthelevelisdisplayeddigitally,andthe4-20mAsignalisoutputtedatthesametime.

Ⅶ.Displayinstruments

DigitalSingleInputIntelligentInstrumentX5T:

X5Tseriesintelligentinstruments，combinedwithvariousanalogsensorsandtransmitters,implementmeasurementdisplay，transformation,.trackrecordandwarningoftemperature，pressure，flow，liquidlevel，elements，forcedisplacement.

Ⅷ.V&Asensors

CurrentTransducerLA58一P:

Currentsensorofcloseloop（compensated）usingHallprinciple.IthasaninsulatingcrustinaccordwithLJG94-VUstandard，installedonprintingplugboard.Characteristicssuchasexcellentprecision，welllinearity，lowtemperatureexcursion,optimalreacttime，widefrequencyband,noplugdamageandstronganti-jamming.Usefieldsuchasalternatingcurrentfrequencytiming,servopole,statictransformdraggedbydirectcurrentdynamo，batterypowersupply,UPS，SMPSandelectricweldingpowersupply.

VoltageTransducerLV28-P:

Voltagesensorofcloseloop（compensated）usingHallprinciple，IthasaninsulatingcrustinaccordwithUL94-V0standard.Whenwemeasure。

one’，voltage,thescalebetweenoriginalcurrentandmeasuredvoltagemustbeconfirmedbyuserselected。

exteriorresistanceRl，andalsoR1shouldbeplacedonoriginalloopinseries.Characteristics:

excellentprecision,welllinearity，lawtemperatureexcursion,optimalreacttime,widefrequencyhand，noplugdamageandstronganti-jamming.Usefield:

alternatingcurrentfrequencytiming,servopole,statictransformdraggedbydirectcurrentdynamo,batterypowersupply,UPS,SMPSandelectricweldingpowersappily.

PressureandpressureTransmitters

Pressureariseswhenaforceisappliedoveratearea.ProvidedtheforceisoneNewton（N）anduniformlyavertheareaofonesquaremeter（rn2），thepressurehasbeendesignatedonePascal（Pa=N/rn2）。

Pressureisauniversalprocessingcondition.Itisalsoaconditionoflifeonthisplanet:

wediveatthebottomofanatmosphericoceanthatextends

Upwardformanymiles.Thismassofairhasweight，andthisweightpressingdownwardcausesatmosphericpressure.Water，afundamentalnecessityoflife，issuppliedtomostofusunderpressure.Inthetypicalprocessplant，pressureinfluencesboilingpointtemperaturescondensingpointtemperatures，processefficiency，costs，andotherimportantfactors.Themeasurementandcontrolofpressure，orlackofit（vacuum）inthetypicalprocessplantiscritical.

Theworkinginstrumentsintheplantusuallyincludethesimplepressuregauges，theprecisionrecordersandindicators，andthepneumaticandelectronicpressuretransmitters.Apressuretransmittermakesapressuremeasurementandgenerateseitheraproportionalorelectricalsignalisproportionaltothepressurebeingsensed.

Intheprocessplant,itisimpracticaltolocatethecontrolinstrumentsgutintheplaceteartheprocessItisaltotruethatmostmeasurementsareoateasilytransmittedfromsomelocatingPressuremeasurementisanexception，butifahighpressureofsomedangerouschemicalistobeindicatedorrecordedseveralhundredfeetfromthepointofdangerouschemicalistobeindicatedorrecordedseveralhundredfeetfromthePontofmeasurement,ahazardmaybeformthepressureorfromthechemicalcarried.

Toeliminatethisproblem，asignaltransmissionsystemwasdeveloped.Thissystemisusuallyeitherpressure（airpressure）orelectrical.Usingthetransmissionsystem，itwellbepossibletoinstallmostoftheindicating，recording，aridcontrolinstrumentsinonebastion,Thismakesitpracticalforaminimumnumberofoperatorstoruntheplantefficiently

Whenapneumatictransmissionsystemisemployed，themeasurementsignalisconvettedintopneumaticsignalbythetransmitterscaldfrom0to100percentofthereassuredvalue.thistransmitterismountedclosetothepointofmeasurementintheprocess,Thetransmitteroutput-airpressurefarapneumatictransmitter--ispipedtotherecordingorcontrolinstrument.Thestandardoutputrangeforapneumatictransmitteris20to

100kPa，whichisalmostuniversallyused.

Whenanelectronicpressuretransmitterisused，thepressureisconvertedtoelectricalsignalthatmaybetheelectriccurrentorvoltage.Itsstandardrangeisfrom4to20mAforthecurrentsignalorfrom1to5VDCforthevoltagesignal.Now,anothertypeofelectricalsignal，whichisbecomingcommon，isthedigitalordiscretesignal.Theuseofinstrumentsandcontrolsystemsbasedoncomputersormicroprocessorsisincreaseduseofthistypeofsignal.

Sometimesitisimportantforanalysistoobtaintheparametersthatdescribethesensor/transmitterbehavior.Thegainisfairlysimpletoobtainoncethespanisknownconsideranelectronicpressuretransmitterwitharangeof0~600kpa.Thegainisdefinedasthechangeinoutputdividedbythechangeininput。

inthiscasetheoutputelectricalsignal（4~20rnADC）andtheinputisprocesspressure（0~60kPa）.Thusthegain

Kr=（20mA-4rnA）/（600KP-0kPa）=16mA/600KPa=0.027mA/kPa

TemperatureMeasurement

Temperaturemeasurementisimportanttheindustrialcontrol,asdirectindicationsofthesystemorproductstateandasindirectindicationsofsuchfactorsasreactionratesenergyflow，turbineefficiency，andlubricantquality.Presenttemperaturescaleshavebeeninuseforshout200years，Theearliestinstrumentswerebasedonthethermalexpansionofgasesandliquids.Suchfilledsystemsarestillemployed，althoughmanyothertypesofinstrumentsareavailable.Representativetemperaturesensorsinclude:

thefilledthermalsystems,theliquid-in-glassthermometers，thethermocouples,theresistancetemperaturedetectors（R'I'DS），theHermiston，thebimetallicdevicesopticalandradiationpyrometersandthetemperature-sensitivepaints.

Theadvantages}felectricalsystemsincludehighaccuracyandsensitivity,practicalityofswitchingorscanningseveralmeasurementpoints，largerdistancespossiblebetweenmeasuringelementsandcontrollers，thereplacement（ratherthancompletesystem），thefastresponse，andtheabilityxomeasurehighertemperature.Amongtheelectricaltemperaturesensors，thethermocouplessensors，thethermocouplesandresistancetemperaturedete