Part Of IB
1, kev kuaj xyuas yog los ntawm ib txoj hauv kev ntawm lub cev, paub qhov txawv ntawm cov ntsuas ntsuas muaj nyob rau hauv qee qhov ntau, txhawm rau txiav txim siab seb qhov ntsuas ntsuas puas tsim nyog lossis seb muaj pes tsawg tus ntsuas.Cov txheej txheem ntawm kev sib piv qhov tsis paub qhov ntsuas ntsuas nrog tus qauv ntau ntawm cov xwm txheej tib yam, txiav txim siab ntau yam ntawm cov qauv ntsuas ntsuas los ntawm pab pawg ntsuas, thiab qhia qhov ntau tus lej.
Nyob rau hauv lub tshav pob ntawm automation thiab nrhiav kom tau, txoj hauj lwm ntawm kev tshawb nrhiav tsis yog tsuas yog kev soj ntsuam thiab ntsuas cov khoom tiav lossis cov khoom tiav ib nrab, tab sis kuj txhawm rau tshuaj xyuas, saib xyuas thiab tswj cov txheej txheem tsim khoom lossis txav khoom kom ua tau zoo tshaj plaws. xwm txheej xaiv los ntawm tib neeg, nws yog ib qho tsim nyog los kuaj xyuas thiab ntsuas qhov loj me thiab hloov pauv ntawm ntau yam tsis tau txhua lub sijhawm.Lub tshuab no ntawm kev tshawb nrhiav lub sijhawm tiag tiag thiab ntsuas cov txheej txheem tsim khoom thiab cov khoom txav mus los tseem hu ua engineering inspection technology.
Muaj ob hom kev ntsuas: ntsuas ncaj qha thiab ntsuas tsis ncaj
Kev ntsuas ncaj qha yog ntsuas tus nqi ntsuas ntawm lub ntsuas ntsuas ntsuas yam tsis muaj kev suav, xws li: siv lub ntsuas kub ntsuas kub, siv lub ntsuas ntsuas ntsuas ntsuas qhov ntsuas hluav taws xob.
Kev ntsuas tsis ncaj yog ntsuas ntau lub cev muaj feem cuam tshuam nrog kev ntsuas, thiab suav tus nqi ntsuas los ntawm kev sib raug zoo.Piv txwv li, lub hwj chim P yog hais txog voltage V thiab tam sim no I, uas yog, P = VI, thiab lub hwj chim yog xam los ntawm kev ntsuas qhov voltage thiab tam sim no.
Kev ntsuas ncaj qha yog qhov yooj yim thiab yooj yim, thiab feem ntau siv hauv kev xyaum.Txawm li cas los xij, yog tias qhov ntsuas ncaj qha tsis tuaj yeem ua tau, kev ntsuas ncaj qha tsis yooj yim lossis qhov ntsuas ncaj qha yuam kev yog qhov loj, qhov ntsuas tsis ncaj tuaj yeem siv.
Lub tswv yim ntawm photoelectric sensor thiab sensor
Lub luag haujlwm ntawm lub sensor yog hloov cov khoom tsis muaj hluav taws xob rau hauv cov khoom siv hluav taws xob uas muaj qhov sib raug zoo, uas yog qhov tseem ceeb ntawm kev sib cuam tshuam ntawm cov khoom siv hluav taws xob tsis muaj hluav taws xob thiab cov khoom siv hluav taws xob.Nyob rau hauv tus txheej txheem ntawm kev tshawb nrhiav thiab tswj, lub sensor yog ib qho tseem ceeb hloov khoom siv.Los ntawm lub zog taw tes ntawm view, lub sensor yuav muab faib ua ob hom: ib tug yog lub zog tswj sensor, kuj hu ua active sensor;Lwm qhov yog lub zog hloov pauv sensor, tseem hu ua passive sensor.Lub zog tswj sensor hais txog lub sensor yuav raug ntsuas rau hauv kev hloov pauv ntawm cov hluav taws xob tsis zoo (xws li kev hloov pauv, kev hloov pauv), lub sensor xav tau ntxiv cov khoom siv hluav taws xob zoo siab, tuaj yeem ntsuas qhov ntsuas qhov hloov pauv mus rau qhov hluav taws xob, kev hloov pauv tam sim no.Lub zog hloov dua siab tshiab sensor tuaj yeem ncaj qha hloov qhov ntsuas kev hloov pauv mus rau qhov hloov pauv ntawm qhov hluav taws xob thiab tam sim no, yam tsis muaj qhov excitation sab nraud.
Feem ntau, qhov tsis yog hluav taws xob ntau npaum li cas yuav tsum ntsuas tsis yog hom hluav taws xob tsis muaj hluav taws xob uas lub ntsuas hluav taws xob tuaj yeem hloov pauv, uas yuav tsum tau ntxiv cov cuab yeej lossis cov cuab yeej siv rau pem hauv ntej ntawm lub sensor uas tuaj yeem hloov cov khoom tsis yog hluav taws xob ntsuas rau hauv tsis yog hluav taws xob ntau uas lub sensor tuaj yeem tau txais thiab hloov pauv.Cov khoom siv lossis cov cuab yeej uas tuaj yeem hloov qhov ntsuas tsis muaj hluav taws xob rau hauv hluav taws xob muaj hluav taws xob yog lub ntsuas hluav taws xob.Piv txwv li, thaum ntsuas qhov ntsuas hluav taws xob nrog lub ntsuas qhov ntsuas qhov tsis kam, nws yuav tsum tau muab cov ntsuas ntsuas qhov ntsuas mus rau lub zog elastic ntawm kev muag siab, lub zog elastic hloov lub siab mus rau hauv lub zog quab yuam, thiab lub zog ntsuas lub zog hloov mus rau hauv lub zog elasticity. hloov tsis kam.Ntawm no lub ntsuas ntsuas yog lub sensor, thiab lub elastic caij yog lub sensor.Ob lub sensor thiab lub sensor tuaj yeem hloov qhov ntsuas tsis yog hluav taws xob txhua lub sijhawm, tab sis lub ntsuas ntsuas ntsuas qhov ntsuas tsis yog hluav taws xob rau hauv cov hluav taws xob tsis muaj hluav taws xob, thiab lub ntsuas ntsuas ntsuas qhov ntsuas tsis yog hluav taws xob rau hauv hluav taws xob.
2, photoelectric sensoryog raws li cov nyhuv photoelectric, lub teeb teeb liab rau hauv lub teeb liab hluav taws xob sensor, dav siv hauv kev tswj tsis siv neeg, aerospace thiab xov tooj cua thiab TV thiab lwm yam.
Photoelectric sensors feem ntau suav nrog photodiodes, phototransistors, photoresistors Cds, photocouplers, inherited photoelectric sensors, photocells thiab duab sensors.Ib lub rooj ntawm lub ntsiab hom muaj nyob rau hauv daim duab hauv qab no.Hauv kev siv tswv yim, nws yog ib qho tsim nyog los xaiv qhov tsim nyog sensor kom ua tiav cov txiaj ntsig xav tau.Txoj cai xaiv dav dav yog:high-speed photoelectric nrhiav kom tauCircuit Court, ntau yam illuminance meter, ultra-high-speed laser sensor yuav tsum xaiv photodiode;Qhov yooj yim pulse photoelectric sensor ntawm ob peb txhiab Hertz thiab qis-ceev mem tes photoelectric hloov hauv qhov yooj yim Circuit Court yuav tsum xaiv lub phototransistor;Txawm hais tias cov lus teb ceev qeeb, qhov kev tiv thaiv choj sensor nrog kev ua haujlwm zoo thiab lub photoelectric sensor nrog cov cuab yeej tiv thaiv, lub photoelectric sensor nyob rau hauv qhov tsis siv neeg teeb pom kev zoo ntawm txoj kev teeb, thiab qhov sib txawv kuj sib txawv nrog lub zog ntawm lub teeb yuav tsum xaiv. Cds thiab Pbs photosensitive ntsiab;Rotary encoders, ceev sensors thiab ultra-high-speed laser sensors yuav tsum tau ua ke photoelectric sensors.
Photoelectric sensor hom Piv txwv ntawm photoelectric sensor
PN kev sib tshuamPN Photodiode(Si, Ge, GaAs)
PIN Photodiode (Si khoom)
Avalanche photodiode(Si, Ge)
Phototransistor (PhotoDarlington tube) (Si khoom)
Integrated photoelectric sensor thiab photoelectric thyristor (Si khoom)
Non-pn junction photocell (cov khoom siv CdS, CdSe, Se, PbS)
Thermoelectric Cheebtsam (cov khoom siv (PZT, LiTaO3, PbTiO3)
Electron tube hom phototube, lub koob yees duab raj, photomultiplier raj
Lwm yam xim rhiab sensors (Si, α-Si cov ntaub ntawv)
Khoom duab sensor (Si khoom, CCD hom, MOS hom, CPD hom
Position detection element (PSD) (Si material)
Photocell (Photodiode) (Si rau cov ntaub ntawv)
Post lub sij hawm: Lub Xya hli ntuj-18-2023