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1、Chapter8ProcessAutomaticControlSystem核心单词和词组AM：AmplitudeModulationFM：FrequencyModulationSignalMagnitude：信号幅度RF：radiofrequency：无线电频率，射频RadioFrequencyIdentification,RFID:射频识别Audiblefrequency：音频Broadcaststation：广播电台，广播站Radiate：发射，广播,辐射Submerge：沉浸，没入水中Icebath：
2、冰点槽thermostaticbath：恒温槽核心单词和词组Linearizer：n.线性化电路Line,Linear,Linearizereproduction：再生，再现，复制，繁殖Beconcernedwith：参与，干预Feedback：反馈Feedforward：前馈Bimetallic：双金属的Setpointdial：设定刻度，给定刻度Setpoint：设定值，给定值Thermostat：温度调节装置，自动调温器句子分析Theinputcanbespeech,music,ordatathati
3、sproducedatonelocationandtransmittedefficientlyoverlongdistances,permittingfaithfulrecoveryoftheoriginalinput.dataorinput??句子分析ThelettersAMstandforAmplitudeModulation.Theymeanthattheamplitudeormagnitudeofaradiofrequency(RF)signaliscausedtovaryaccordingtoth
4、emagnitudeofalower-frequencysignal(audio,correspondingtoaudiblefrequencies)句子分析ThefunctionoftransmitterinanAMbroadcastsystemistoaccepttheinputsignalfromaninputdevice(microphone),usethissignaltocontroltheamplitudeofaradiofrequencysignal(eachbroadcaststation
5、isassigneditsownradiofrequency),anddrivetheoutputdevice(theantenna)witharadiofrequencycurrenttoproduceelectromagneticwavesradiatingintospace.句子分析Thefunctionsofthereceiveraretoamplifyorincreasethestrengthoftherelativelyweaksignalobtainedfromtheantenna,tofil
6、terorselectthedesiredradiofrequencysignalfromthesignalsofallotherbroadcaststations,torecovertheaudiosignalfromtheamplitudevariationsoftheradiofrequencysignal,andtodrivealoudspeakerwiththisaudiosignal.句子分析Thepairofthermocouplejunctions,oneattachedtotheobjec
7、twhosetemperatureistobemeasured,theothersubmergedinanicebath(toestablishastablereferencepoint),presentstotheprocessoravoltagethatdependsonthetemperaturedifferencebetweentheobjecttobemeasuredandtheicebath.Who??句子分析Inmeasurementsystem,therefore,oneexpectstob
8、econcernedwithlocatingandremovinganysmallerrorsthatmightbeaddedtothesignalateachstepoftheprocessingsequence.8.2IntroductiontoProcessControlAhostof：许多，一大群Regulate：调节Self-regulation：自动调节Referencevalue：参考值，标准值Se
