Sensors yog qhov yuav tsum muaj nyob rau hauv cov ntaub ntawv hnub nyoog thiab tuaj yeem pom yuav luag txhua qhov chaw. Nws yog tus yuam sij kom tau txais cov ntaub ntawv los ntawm lub ntiaj teb sab nraud. Tam sim no tib neeg tsuas yog tso siab rau lawv tus kheej lub cev kev xav, hauv kev kawm ntawm cov xwm txheej ntuj thiab cov cai thiab kev tsim khoom hauv lawv txoj haujlwm tsis txaus. Yuav kom ua tau raws li qhov no, yuav tsum muaj cov sensors. Yog li ntawd, nws tuaj yeem hais tias lub sensor yog qhov txuas ntxiv ntawm tib neeg lub ntsej muag, tseem hu ua hluav taws xob nta.
1, hom kev tiv thaiv
Resistive sensor yog ib qho khoom siv uas hloov cov ntsuas lub cev xws li hloov chaw, deformation, quab yuam, acceleration, av noo thiab kub rau hauv qhov tseem ceeb kuj. Lub ntsiab tiv thaiv hom, hom piezoresistive, thermal kuj, kub rhiab heev, gas rhiab heev, av noo rhiab tiv thaiv sensor qhov chaw.
2, yuag
Raws li ib qho tseem ceeb ntawm cov khoom siv hluav taws xob hnyav, lub ntsuas qhov hnyav yog ib yam khoom siv hluav taws xob hloov hluav taws xob uas tuaj yeem hloov lub ntiajteb txawj nqus mus rau hauv hluav taws xob teeb liab. Muaj ntau ntau hom sensors uas tuaj yeem paub txog kev hloov pauv ntawm lub zog thiab hluav taws xob, cov khoom siv feem ntau yog hom kev tiv thaiv hom, electromagnetic force type thiab capacitance type. Electromagnetic quab yuam hom yog tsuas yog siv nyob rau hauv hluav taws xob tshuav nyiaj li cas, capacitive hom yog siv nyob rau hauv ib feem ntawm lub tshuab hluav taws xob crane nplai, thiab feem ntau ntawm cov khoom hnyav siv los yog tsis kam strain hom hnyav sensor. Qhov kev tiv thaiv hom hnyav sensor muaj qhov zoo ntawm cov qauv yooj yim, siab raug, daim ntawv thov dav, thiab tuaj yeem siv rau hauv ib puag ncig tsis zoo. Yog li ntawd, qhov kev tiv thaiv hom hnyav sensor tau dav siv nyob rau hauv qhov hnyav apparatus.
3, hom piezoresistive
Piezoresistive sensor yog ib qho cuab yeej ua los ntawm diffusion tsis kam ntawm substrate ntawm cov khoom siv semiconductor raws li cov nyhuv piezoresistive ntawm cov khoom siv semiconductor. Lub substrate tuaj yeem siv ncaj qha los ua qhov ntsuas qhov ntsuas qhov ntsuas, thiab qhov cuam tshuam tsis zoo yog txuas rau hauv daim ntawv choj hauv substrate. Thaum lub substrate yog deformed los ntawm sab nraud quab yuam, qhov kev tiv thaiv qhov tseem ceeb yuav hloov, thiab tus choj yuav ua rau cov khoom tsis sib npaug.
Lub substrate (los yog diaphragm) cov ntaub ntawv siv los ua piezoresistive sensor yog feem ntau silicon nti thiab germanium nti, silicon nti yog ua los ntawm cov khoom rhiab thiab silicon piezoresistive sensor yog ntau thiab ntau xim, tshwj xeeb tshaj yog rau ntsuas lub siab thiab ceev ntawm cov khoom piezoresistive sensor daim ntawv thov yog feem ntau.
4, laser ua
Ib tug sensor uas siv laser technology los ua kev ntsuas. Nws muaj lub laser, lub laser ntes thiab ntsuas Circuit Court. Laser sensor yog ib yam tshiab ntawm kev ntsuas ntsuas, nws qhov zoo yog kom ua tiav kev ntsuas kev deb yam tsis muaj kev sib cuag, ceev ceev, siab precision, ntau yam, muaj zog tiv thaiv lub teeb thiab hluav taws xob cuam tshuam.
Thaum lub laser sensor ua haujlwm, lub laser emitting diode aims ntawm lub hom phiaj kom emit laser pulses. Lub laser yog reflected los ntawm lub hom phiaj thiab tawg nyob rau hauv tag nrho cov kev taw qhia. Ib feem ntawm lub teeb tawg yog xa rov qab mus rau lub sensor receiver, tau txais los ntawm qhov kho qhov muag system thiab muab tso rau hauv avalanche photodiode. Lub avalanche photodiode yog ib qho khoom siv kho qhov muag nrog kev ua haujlwm sab hauv, yog li nws tuaj yeem ntes cov teeb meem kho qhov muag tsis muaj zog thiab hloov mus rau cov teeb liab hluav taws xob sib xws. Kev ntsuas qhov tsis sib cuag ntawm cov chaw taws teeb tuaj yeem pom tau los ntawm kev taw qhia siab, siab monochromatism thiab siab ci ntawm laser.
