Photoelectric kua theem sensor yog ib qho ntawm cov thev naus laus zis tseem ceeb ntawm kev ntsuas dej hauv pas dej da dej tu neeg hlau. Qhov sensor no paub qhov hloov pauv ntawm cov kua dej los ntawm qhov sib txawv ntawm qhov sib txawv ntawm lub teeb hauv dej thiab huab cua. Nws txoj kev khiav hauj lwm yog ua raws li lub refraction thiab reflection ntawm lub teeb, thiab lub sab hauv tsim yog tsim los ntawm optical electronics Cheebtsam, xws li infrared emission tubes thiab photosensitive receivers, tag nrho cov uas yog kaw nrog resin los xyuas kom meej stability thiab durability. Qhov kev tsim no ua rau tsis muaj cov khoom txav hauv lub sensor, zam qhov kev xav tau ntawm kev saib xyuas los ntawm kev hnav lossis kev siv tshuab tsis ua haujlwm, thiab ua tiav lub hom phiaj ntawm kev ua haujlwm pub dawb, kev kuaj dawb thiab kev saib xyuas dawb.
Cov khoom tseem ceeb ntawm photoelectric kua theem sensor muaj xws li infrared transmitting raj thiab photosensitive receiver, thiab lub luag hauj lwm tseem ceeb ntawm kev saib xyuas yog ib tug tshwj xeeb prism qauv. Thaum cov dej theem nyob rau hauv ib txwm muaj teeb tsa los ntawm lub sensor, lub teeb emissions los ntawm lub transmitting raj yog refracted los ntawm lub lens mus rau lub txais raj, tsim ib tug ruaj khov teeb liab teeb liab. Thaum cov dej theem qis dua ntawm qhov chaw sensor, lub teeb yuav rov qab mus rau hauv cov kua, thiab tus txais yuav tsis tau txais lossis tsuas yog tau txais lub teeb tsis muaj zog, uas yuav ua rau lub tswb nrov. Cov txheej txheem no tso cai rau lub pas dej ntxuav neeg hlau los saib xyuas cov dej hauv pas dej hauv lub sijhawm tiag tiag kom ntseeg tau tias nws ua haujlwm ntawm qib zoo kom tsis txhob muaj cov khoom puas lossis kev tu tsis zoo vim muaj dej tsawg lossis siab.
