Kub thiab siab sensor rau Cummins 3408627

Piezoelectric nyhuv

Thaum qee qhov dielectionics yog deformed los ntawm kev thov yuam kev hauv qee qhov kev taw qhia, them nyiaj yog tsim rau qee qhov chaw, thiab thaum lub zog sab nraud raug tshem tawm, lawv rov qab mus rau lub xeev tsis tau npaj tseg. Qhov tshwm sim no hu ua cov nyhuv piezoelectric nyhuv zoo. Thaum ib daim teb hluav taws xob tau thov rau hauv cov kev coj ua ntawm polarization, daim dielrictric yuav tsim cov tshuab deformation lossis tshuab siab nyob rau hauv ib qho kev taw qhia. Thaum sab nraud hluav taws xob teb tau raug tshem tawm, qhov deformation lossis kev ntxhov siab yuav ploj, uas yog hu ua Inverse Piezoeltric effect.

Piezoelectric caij

Piezoelectric sensor yog lub cev sensor thiab lub zog hluav taws xob sensor. Feem ntau siv cov ntaub ntawv piezoelectric yog Shi Ying Crystal (Sio2 _ 2) thiab hluavtaws piezoelectric ceramics.

Lub piezoelectric constant ntawm piezoelectric ceramics yog ob peb zaug uas ntawm Shi Ying Crystal, thiab nws rhiab heev yog qhov siab.

4) photoelectric transducer

1. Phib physelectric effect

Thaum lub teeb Irradiates ib qho khoom, nws tuaj yeem suav tias yog txoj hlua ntawm photons nrog lub zog eombarding tus kwv. Yog tias lub zog ntawm photons yog loj txaus, cov tshuab hluav taws xob hauv cov khoom yuav tau tshem ntawm cov kev txwv sab hauv thiab muaj cov teebmeem hluav taws xob, uas yog hu ua cov nyhuv piCholefric.

1) Raws li qhov kev txiav txim ntawm lub teeb, qhov tshwm sim uas hluav taws xob khiav tawm ntawm cov khoom siv sab nraud, xws li cov raj txheej photoelySultric thiab photomiciplier raj.

2) Nyob rau hauv qhov kev txiav txim ntawm lub teeb, qhov tshwm sim uas tsis muaj txiaj ntsig ntawm cov khoom siv hluav taws xob, duab zoo li cov photoresistor, photodiode, phototransistor thiab phototransistor.

3) Raws li qhov kev txiav txim ntawm lub teeb, ib qho khoom tsim hluav taws xob lub zog hauv lub ntsej muag, uas yog hu ua photovoltaic zoo rau txoj haujlwm ntawm qhov teeb meem teeb pom ntawm cov duab npe).

2 Yees duab Protector

Thaum tus photoresistor yog irradiated los ntawm lub teeb, migrate migrate los tsim hluav taws xob-qhov ua khub, uas ua rau cov khoom tsis muaj zog. Lub zog ua kom muaj lub teeb, qis dua qhov tsis kam. Qhov xwm txheej ploj, lub qhov hluav taws xob-qhov sib ua dua cov txiaj ntsig maj mam maj mam muab rov qab rau nws tus nqi qub.

3. Kws ua lub raj

Photosensitive hlab (photodiode, phototransistor, phototransistor, thiab lwm yam) zwm rau cov khoom siv hluav taws xob soob.

4. Electroluminescence

Cov linescence qhov tshwm sim uas tau tsim los ntawm cov khoom siv luminescent nyob rau hauv qhov kev nkag siab ntawm hluav taws xob yog hu ua hluav taws xob hluav taws xob. Electrolescence yog txheej txheem ntawm beoderving hluav taws xob hluav taws xob rau hauv lub zog. Lub teeb-emitting diode (LED) yog semiconductor electroluminescent ntaus ntawv nrog cov ntaub ntawv tshwj xeeb. Thaum lub pn kev sib tshuam yog xa tawm suab sib cav, ntau dhau yog tsim vim muaj electron-qhov kev siv hluav taws xob, uas tau tso tawm hauv daim ntawv ntawm photons thiab emits lub teeb.