Infrared tawg

Electromagnetic los yog infrared tawg npog ib tug spectral cheeb tsam ntawm lub electromagnetic yoj, uas pom tus tib neeg lub qhov muag thiab nws cov liab ntsis thiab microwave los yog microwave tawg. Qhov loj sib txawv nyob rau hauv lub kho qhov muag khoom ntawm tshuaj cai ntawm cov xaav nyob rau hauv lub infrared thiab pom lub teeb. Piv txwv li, rau luv luv-yoj infrared tawg nyob rau hauv dej ob peb centimeters tuab opaque.

Hais txog 50% ntawm cov hnub ci tawg ntog rau no hom. Nws yog ib feem ntawm Khiav nkaum thiab incandescent teeb raws li zoo li ib co lasers muaj peev xwm ntawm emitting infrared tawg. Rau npe nws, siv photovoltaic thiab thermal receivers los yog tshwj xeeb duab.

Nyob rau hauv lub ntau yam ntawm infrared tawg muaj peb yam: luv luv-yoj, medium-yoj thiab ntev-yoj cheeb tsam. Ntev wavelengths raug muab faib ua sublimated los yog terahertz tawg.

Tib neeg daim tawv nqaij tsis totaub infrared tawg los ntawm kub khoom, raws li cov thermal nov ntawm nqaij tawv, ces nws yog hu ua "tshav kub." Cov wavelength faib tshav kub, nyob ntawm cov cua kub kub. Yog hais tias qhov kub thiab txias siab heev, lub wavelength yog luv luv, thiab cov kev siv ntawm nws cov emission saum toj no. Cov pog ions thiab atoms emit infrared tawg. Nyob rau hauv no ntau yam, nyob kuj tsis tshua muaj kub thiab yog electromagnetic tawg spectrum blackbody.

Astronomer William Herschel sab electromagnetic tawg nyob rau hauv 1800, tom qab uas infrared teeb tau raug kawm nyob rau hauv kom meej. Nws cov khoom Herschel txiav txim siv nyob hauv tus ntsuas. Raws li ib tug tshwm sim ntawm thwmsim, nws twb qhia hais tias txawv feem ntawm qhov pom spectrum kub ua txawv. Herschel tau pom cov nram no: cov nyiaj pab ntau tshaj thaum tshav kub kub, uas lies sab nraum lub uas liab xim, nws yog ua tau thiab nws pom refraction.

Niaj hnub nimno kuaj qhov chaw ntawm infrared tawg yog raws li nyob rau hauv cov khoom-xeev molecular roj lasers. Lawv yog cov adjustable thiab taag emission zaus.

Rau npe thermal tawg tshwj xeeb photographic daim hlau siv. Photoresistor photoelectric ntes thiab muaj ib tug ntau dav ntau ntawm rhiab heev.

Nws muaj qhov txawv muaj peev xwm mus infrared tawg. Nws cov khoom muaj xws li hais tias nws yuav siv tau nyob rau hauv ntau yam teb:

• tshuaj - nyob rau hauv physiotherapy;
• kom tsis muaj menyuam ntawm cov zaub mov cov khoom kom tuaj tua kab;
• tej thaj chaw deb tswj - nyob rau hauv TV tej thaj chaw deb ntawm lwm yam uas, tsis siv neeg thiab ruaj ntseg tshuab, tej qauv ntawm cov xov tooj txawb;
• painting - npaum zog thiab tus nqi yog tsawg tshaj nrog convection txoj kev;
• raws li ib tug anti-xeb neeg sawv cev;
• khoom noj khoom haus kev lag luam - electromagnetic vuag tej ntau yam muaj thermal thiab lom feem ntawm qhov khoom, uas yuav pab leeb biochemical transformations nyob rau hauv biopolymers;
• ua liaj ua teb kev lag luam;
• cua sov txojkev los tsev mus rau lub ntsiab thiab ntxiv cua kub;
• khij lub authenticity ntawm cov nyiaj, thiab lwm yam

Infrared tawg yuav ua kev puas tsuaj rau tib neeg lub qhov muag. Nyob rau hauv cov chaw uas muaj siab thaum tshav kub kub, infrared tawg yuav ua tau txaus ntshai rau lub qhov muag, thiab yog hais tias nws tsis tau nrog los ntawm ib tug pom lub teeb qhov chaw. Nyob rau hauv cov zaum nws yog tsim nyog los siv tiv thaiv goggles.

Nyob rau hauv lwm yam mob, infrared tawg ua raug mob rau cov tib neeg tsis tau. Nws yog kiag li muaj kev nyab xeeb thiab tsis muaj dab tsi uas zoo sib xws rau cov ultraviolet los yog X-rays.

Infrared tawg, siv rau ua noj ua haus, ua rau cov zaub mov yog heev six, raws li muaj tseem tag nrho cov zaub mov thiab cov vitamins, nrog rau ib tug microwave, nws tsis muaj dab tsi ua li cas.

Nyob rau hauv kev peb yuav hais tias zoo tsis muaj leej twg ntawm lub chaw nyob qhov twg lub infrared tawg yog tsis siv niaj hnub no.