Infrared rangefinder tus tsim
Lub infrared rangefinder feem ntau yog tsim los ntawm kev hloov pauv lub teeb pom kev zoo, chav txais txais, chav ntsuas theem, chav suav thiab tso saib, chav ntsuas kev tswj hwm thiab lub zog hloov pauv. Lub teeb ci feem ntau yog gallium arsenide (GaAs) semiconductor lub teeb emitting diode. Thaum lub sijhawm tam sim no dhau los ntawm PN kev sib tshuam ntawm GaAs diode, PN kev sib tshuam yuav tawm ze-infrared lub teeb nrog lub wavelength ntawm 0.72 μm thiab 0.94 μm, uas yog vim qhov electron-qhov recombination nyob rau hauv doped GaAs semiconductor. , lub zog tshaj yog tso tawm nyob rau hauv daim ntawv ntawm photons. Ntxiv mus, lub emission siv lub teeb yuav sib txawv nrog cov tshuaj tam sim no. Yog li ntawd, yog tias nws yog siv los ua lub teeb pom kev ntawm qhov rangefinder, lub amplitude modulation ntawm lub teeb emitted siv tau ncaj qha los ntawm kev hloov qhov loj ntawm cov khoom noj tam sim no, uas yog, cov khoom siv hluav taws xob semiconductor no muaj ob txoj haujlwm ntawm " radiation" thiab "modulation".
Lub infrared photodetection hloov dua siab tshiab ntaus ntawv siv tau txais modulated lub teeb feem ntau yog silicon photodiode los yog avalanche photodiode, thiab cov khoom siv no muaj "photovoltage effect". Thaum lub teeb extraneous ci rau nws txoj kev sib tshuam PN, vim tias qhov cuam tshuam ntawm photoelectric zog hloov tuaj yeem tsim qhov sib txawv ntawm PN ob tug ncej, nws qhov loj yuav ua raws.
Technical indicators thiab functions ntawm photoelectric range finder
Qhov siab tshaj plaws ntawm qhov short-range infrared photoelectric range finder yog 2 500m, thiab qhov ntsuas qhov deb tuaj yeem ncav cuag ± (3 hli ntxiv rau 2 × 10-6 × D) (qhov twg D yog qhov ntsuas qhov deb); qhov tsawg kawg nkaus nyeem ntawv yog 1 hli; Lub ntsuas hluav taws xob yog nruab nrog tsis siv neeg Lub teeb siv hloov kho lub teeb kuj tuaj yeem kho lub teeb siv lub teeb thaum ntsuas hauv qhov chaw nyuaj; qhov kub, cua siab thiab prism tas li tuaj yeem nkag mus rau qhov kho qhov tshwm sim; lub kaum sab xis tuaj yeem nkag tau los txiav txim siab txog kab rov tav thiab qhov siab sib txawv; qhov kev ncua deb tuaj yeem raug preset Ua tiav kev sib tw stakeout; Yog tias koj nkag mus rau qhov chaw nres tsheb kev tswj hwm thiab kev nce siab, nws tuaj yeem suav cov kev tswj hwm thiab qhov siab ntawm qhov chaw soj ntsuam. Txoj kev ntsuas qhov deb suav nrog kev ntsuas ib txwm thiab ntsuas ntsuas. Kev ntsuas ib txwm siv sijhawm 3s, thiab qhov nruab nrab tus nqi ntawm ntau qhov ntsuas tuaj yeem pom; qhov kev ntsuas ntsuas yuav siv sijhawm 0.8s, thiab qhov ntsuas qhov deb tau rov ua dua ntawm qhov tsis tu ncua.
