Taw qhia rau qhov chaw ntawm Ranging yuam kev ntawm Photoelectric Range Finders
Qhov kev ua yuam kev ntawm photoelectric range finder tau muab faib ua ob ntu:
(1) Proportional yuam kev: ib qho kev ua yuam kev proportional rau qhov ntsuas qhov ntev, feem ntau yog tshwm sim los ntawm zaus yuam kev, atmospheric refractive index yuam kev thiab lub tshuab nqus tsev lub teeb nrawm ntsuas qhov yuam kev mus rau qhov sib txawv. Qhov cuam tshuam ntawm qhov ceev ntawm lub teeb ntsuas qhov yuam kev ntawm tus nqi sib txawv yog negligible.
(2) Kho qhov yuam kev: qhov yuam kev ntawm qhov ntsuas, uas tsis muaj dab tsi cuam tshuam nrog qhov ntsuas qhov ntev, suav nrog kev txheeb xyuas qhov yuam kev ntawm xoom point yuam kev, qhov yuam kev hauv nruab nrab ntawm lub ntsuas ntsuas thiab daim iav, qhov ntsuas theem yuam kev, amplitude thiab theem yuam kev, theem inhomogeneity yuam kev ntawm lub luminous raj thiab lub voj voog yuam kev. Qhov yuam kev tsis tu ncua feem ntau yog los ntawm tib lub sijhawm cuam tshuam ntawm lub teeb liab photoelectric hauv lub ntsuas, thiab qhov loj ntawm qhov yuam kev tshwm sim ntau zaus raws li qhov ntev ntawm qhov ntsuas ntsuas ntsuas.
Ntawm lawv, qhov yuam kev proportional, lub sij hawm yuam kev thiab xoom point yuam kev yog lub ntsiab system yuam kev ntawm photoelectric range finder.
Raws li ib tug loj tus naj npawb ntawm cov ntaub ntawv ntsuas, nws yog pom tau hais tias vim muaj tej yam xws li theem inhomogeneity ntawm lub luminescent raj thiab lub txais lub raj ntawm lub twj paj nruag thiab lub amplitude thiab theem tsis ua hauj lwm, lub ntsuas kuj muaj ib tug kho yam khoom uas muaj feem xyuam rau qhov kev ncua deb. Ntxiv rau qhov yuam kev zaus thiab atmospheric refractive index yuam kev. Cov lej kho qhov ntev yog sib sau ua ke hu ua qhov sib npaug tas li!. Qhov kev kho tus lej ntawm qhov yuam kev xoom yog hu ua tus additive tas li. Kev ua yuam kev tuaj yeem raug tshem tawm los ntawm kev siv cov kev kho kom tau txais cov txiaj ntsig kev ua yuam kev hauv lub sijhawm ua pov thawj. Yog li ntawd, kev txheeb xyuas qhov yuam kev ntawm photoelectric rangefinder system feem ntau suav nrog peb yam hauv qab no:
(1) Kev txheeb xyuas qhov yuam kev raws sijhawm;
(2) Kev txheeb xyuas cov khoom ntxiv tas li;
(3) Kev txheeb xyuas qhov sib npaug.
