Lub laser rangefinder ua haujlwm li cas?
Laser rangefinders feem ntau siv ob txoj hauv kev los ntsuas qhov deb: txoj kev pulse thiab theem txheej txheem. Cov txheej txheem ntawm pulse txoj kev sib txawv yog raws li nram no: lub laser emitted los ntawm lub rangefinder yog reflected los ntawm cov khoom yuav tsum tau ntsuas thiab ces tau txais los ntawm lub rangefinder, thiab rangefinder cov ntaub ntawv lub sij hawm ntawm lub laser puag ncig mus ncig teb chaws tib lub sij hawm. Ib nrab ntawm cov khoom ntawm qhov ceev ntawm lub teeb thiab lub sijhawm mus ncig yog qhov kev ncua deb ntawm qhov rangefinder thiab cov khoom raug ntsuas. Qhov tseeb ntawm qhov ntsuas qhov deb los ntawm txoj kev pulse feem ntau yog hais txog ntxiv /- 1 meter. Tsis tas li ntawd, qhov ntsuas qhov muag tsis pom qhov chaw ntawm hom rangefinder feem ntau yog li 15 meters.
Dab tsi yog qhov tseem ceeb ntawm daim ntawv thov ntawm laser rangefinders?
Laser rangefinders tau siv dav hauv cov haujlwm hauv qab no: hluav taws xob, kev txuag dej, kev sib txuas lus, ib puag ncig, kev tsim kho, geology, tub ceev xwm, kev tiv thaiv hluav taws, blasting, navigation, railway, tiv thaiv kev ua phem / tub rog, kev ua liaj ua teb, hav zoov, vaj tse, kev lom zem. / sab nraum zoov kev ua si, thiab lwm yam ..
Vim li cas thiaj muaj qhov sib txawv ntawm qhov hu ua "kev nyab xeeb" thiab "tsis zoo" laser rangefinders?
Raws li lub npe qhia, laser rangefinders ua haujlwm nrog lasers ua cov khoom tseem ceeb ua haujlwm. Tam sim no, cov ntaub ntawv ua haujlwm ntawm cov khoom siv ntawm tes laser rangefinders ntawm lub khw feem ntau suav nrog cov hauv qab no: semiconductor lasers nrog ua haujlwm wavelengths ntawm 905 nanometers thiab 1540 nanometers, thiab YAG lasers nrog ua haujlwm wavelengths ntawm 1064 nanometers. Lub wavelength ntawm 1064 nanometers yog teeb meem rau tib neeg cov tawv nqaij thiab ob lub qhov muag, tshwj xeeb tshaj yog yog hais tias lub qhov muag raug yuam kev ntawm lub laser ntawm 1064 nanometers, kev puas tsuaj rau lub qhov muag tej zaum yuav mus tas li. Yog li ntawd, nyob rau hauv txawv teb chaws, lub 1064-nanometer laser yog kiag li banned nyob rau hauv lub handheld laser rangefinder. Hauv Suav teb, qee lub tuam txhab kuj tsim 1064-nanometer laser rangefinders.
Rau 905nm thiab 1540nm laser rangefinders, peb hu lawv "kev nyab xeeb". Rau 1064 nm laser rangefinder, peb hu nws "tsis muaj kev nyab xeeb" vim tias nws muaj peev xwm ua rau tib neeg lub cev.
