{"id":14025,"date":"2023-09-10T17:25:12","date_gmt":"2023-09-10T17:25:12","guid":{"rendered":"https:\/\/www.rayzeek.com\/?p=14025"},"modified":"2023-12-26T08:43:18","modified_gmt":"2023-12-26T08:43:18","slug":"what-is-infrared-radiation-ir","status":"publish","type":"post","link":"https:\/\/www.rayzeek.com\/pt\/glossario\/o-que-e-radiacao-infravermelha-ir","title":{"rendered":"O que \u00e9 a radia\u00e7\u00e3o infravermelha (IR)"},"content":{"rendered":"

O que \u00e9 a radia\u00e7\u00e3o infravermelha (IR)<\/h2>

A radia\u00e7\u00e3o infravermelha, tamb\u00e9m conhecida como infravermelho ou IR, refere-se a um tipo de radia\u00e7\u00e3o electromagn\u00e9tica que se enquadra numa gama espec\u00edfica de comprimentos de onda no espetro eletromagn\u00e9tico. Caracteriza-se por comprimentos de onda que variam entre cerca de 700 nan\u00f3metros (nm) e 1 mil\u00edmetro (mm), o que a torna mais longa do que as ondas de luz vis\u00edveis mas mais curta do que as ondas de r\u00e1dio. Em termos de frequ\u00eancia, a radia\u00e7\u00e3o infravermelha tem frequ\u00eancias superiores \u00e0s das micro-ondas mas inferiores \u00e0s da luz vis\u00edvel, variando entre cerca de 300 gigahertz e 400 terahertz (THz).<\/p>

A radia\u00e7\u00e3o infravermelha \u00e9 invis\u00edvel ao olho humano. Embora n\u00e3o possamos ver a luz infravermelha, esta pode ser detectada por sensores de calor, o que a torna intimamente associada ao calor e \u00e0 imagem t\u00e9rmica. Na ind\u00fastria da ilumina\u00e7\u00e3o, a radia\u00e7\u00e3o infravermelha \u00e9 relevante em v\u00e1rias aplica\u00e7\u00f5es. Por exemplo, \u00e9 normalmente utilizada em aplica\u00e7\u00f5es de aquecimento, como espa\u00e7os exteriores ou ambientes industriais onde \u00e9 necess\u00e1rio um aquecimento direcionado. A radia\u00e7\u00e3o infravermelha tamb\u00e9m \u00e9 utilizada em sistemas de seguran\u00e7a, onde os sensores podem detetar a sua presen\u00e7a para monitorizar o movimento ou detetar potenciais intrusos.<\/p>

Procura solu\u00e7\u00f5es de poupan\u00e7a de energia activadas por movimento?<\/h3>

Contacte-nos para obter sensores de movimento PIR completos, produtos de poupan\u00e7a de energia activados por movimento, interruptores com sensor de movimento e solu\u00e7\u00f5es comerciais de Ocupa\u00e7\u00e3o\/Vazio.<\/p>

Enviar um e-mail<\/p><\/a><\/div><\/div>

Formul\u00e1rio de contacto<\/p><\/a><\/div><\/div>

Conversar online<\/p><\/a><\/div><\/div><\/div><\/div>

A radia\u00e7\u00e3o infravermelha partilha algumas semelhan\u00e7as com a luz vis\u00edvel. Tal como a luz vis\u00edvel, pode ser focada, reflectida e polarizada, permitindo efeitos de ilumina\u00e7\u00e3o e aplica\u00e7\u00f5es precisas utilizando lentes, espelhos e filtros. Esta carater\u00edstica torna-a uma ferramenta valiosa na ind\u00fastria da ilumina\u00e7\u00e3o para obter resultados de ilumina\u00e7\u00e3o espec\u00edficos.<\/p>

Inspire-se nos portf\u00f3lios de sensores de movimento Rayzeek.<\/h3>

N\u00e3o encontra o que pretende? N\u00e3o se preocupe. H\u00e1 sempre formas alternativas de resolver os seus problemas. Talvez um dos nossos portef\u00f3lios possa ajudar.<\/p>

Sensores de movimento PIR<\/p><\/a><\/div><\/div>

Interruptores com sensor de movimento<\/p><\/a><\/div><\/div>

Sensores de ocupa\u00e7\u00e3o<\/p><\/a><\/div><\/div>

Sensor de movimento do ar condicionado<\/p><\/a><\/div><\/div>

Fitas de luz com sensor de movimento<\/p><\/a><\/div><\/div>

Sensores de movimento DC de baixa tens\u00e3o\/Dimmers<\/p><\/a><\/div><\/div>

Kits de sensores de movimento sem fios<\/p><\/a><\/div><\/div><\/div><\/div>

Perguntas Frequentes<\/h2>\n\n

Como \u00e9 que a luz infravermelha afecta os seres humanos<\/h3><\/div><\/div>\n\n

Com a exposi\u00e7\u00e3o prolongada \u00e0s ondas de infravermelhos, os indiv\u00edduos podem sentir sintomas como uma sensa\u00e7\u00e3o de calor intenso, dores de cabe\u00e7a, tonturas e at\u00e9 n\u00e1useas. \u00c9 importante notar que os raios infravermelhos curtos podem ser particularmente prejudiciais para os olhos, podendo levar ao desenvolvimento de cataratas ao longo do tempo.<\/p><\/div><\/div><\/div><\/div>\n\n

Como funciona a radia\u00e7\u00e3o infravermelha<\/h3><\/div><\/div>\n\n

O processo de radia\u00e7\u00e3o infravermelha envolve o movimento das liga\u00e7\u00f5es das mol\u00e9culas, resultando na liberta\u00e7\u00e3o de energia que \u00e9 percebida como calor. Este fen\u00f3meno ocorre em todos os objectos, incluindo os cubos de gelo. A quantidade de energia t\u00e9rmica emitida por um objeto \u00e9 diretamente proporcional \u00e0 sua temperatura. Esta energia emitida \u00e9 normalmente referida como a assinatura t\u00e9rmica ou calor\u00edfica do objeto.<\/p><\/div><\/div><\/div><\/div>\n\n

O que \u00e9 considerado radia\u00e7\u00e3o infravermelha<\/h3><\/div><\/div>\n\n

A radia\u00e7\u00e3o infravermelha (IR) \u00e9 uma forma de radia\u00e7\u00e3o electromagn\u00e9tica que se enquadra na gama de comprimentos de onda de 760 nm a 100.000 nm. Quando se trata de terapia com luz de baixo n\u00edvel (LLLT) ou terapia de fotobiomodula\u00e7\u00e3o (PBM), esta utiliza normalmente luz com comprimentos de onda entre 600 nm e 100 nm, especificamente no espetro vermelho e infravermelho pr\u00f3ximo, para regular a atividade biol\u00f3gica.<\/p><\/div><\/div><\/div><\/div>\n\n

Qual \u00e9 o exemplo mais comum de infravermelhos em casa?<\/h3><\/div><\/div>\n\n

Provavelmente, um dos exemplos mais comuns de tecnologia de infravermelhos utilizada nos lares \u00e9 o controlo remoto do televisor. Os controlos remotos est\u00e3o equipados com sensores que emitem um laser de infravermelhos para um sensor no televisor, permitindo a transmiss\u00e3o de comandos espec\u00edficos, como ligar o televisor ou ajustar o volume.<\/p><\/div><\/div><\/div><\/div>\n\n

Para que \u00e9 habitualmente utilizada a luz infravermelha<\/h3><\/div><\/div>\n\n

A luz infravermelha \u00e9 amplamente utilizada para v\u00e1rios fins. Algumas aplica\u00e7\u00f5es t\u00edpicas da luz infravermelha incluem a utiliza\u00e7\u00e3o de sensores de calor, imagens t\u00e9rmicas e equipamento de vis\u00e3o nocturna. Al\u00e9m disso, a luz infravermelha \u00e9 utilizada em opera\u00e7\u00f5es com e sem fios em redes.<\/p><\/div><\/div><\/div><\/div>\n\n

As luzes de infravermelhos s\u00e3o boas para si<\/h3><\/div><\/div>\n\n

Ao contr\u00e1rio da luz ultravioleta, que pode ser prejudicial para o corpo, a luz infravermelha tem efeitos ben\u00e9ficos. Ajuda na regenera\u00e7\u00e3o e repara\u00e7\u00e3o das c\u00e9lulas, melhora a circula\u00e7\u00e3o sangu\u00ednea e promove uma cicatriza\u00e7\u00e3o mais r\u00e1pida dos tecidos profundos. Para al\u00e9m disso, pode ajudar a aliviar a dor.<\/p><\/div><\/div><\/div><\/div>\n\n

Existem perigos nos infravermelhos?<\/h3><\/div><\/div>\n\n

A exposi\u00e7\u00e3o prolongada \u00e0 radia\u00e7\u00e3o infravermelha (IV) pode levar a uma turva\u00e7\u00e3o progressiva e irrevers\u00edvel do cristalino do olho. Al\u00e9m disso, pode causar danos na retina, resultando numa perda de vis\u00e3o conhecida como escotoma. Mesmo uma absor\u00e7\u00e3o m\u00ednima de IR pode resultar em sintomas como vermelhid\u00e3o ocular, incha\u00e7o ou hemorragia.<\/p><\/div><\/div><\/div><\/div>\n\n

Quanto tempo se deve ficar debaixo de uma luz infravermelha<\/h3><\/div><\/div>\n\n

Resposta: Recomenda-se que permane\u00e7a im\u00f3vel durante toda a dura\u00e7\u00e3o do tratamento enquanto o aparelho de luz infravermelha estiver a ser utilizado. Normalmente, o tratamento dura cerca de 20 minutos.<\/p><\/div><\/div><\/div><\/div>\n\n

O que bloqueia a luz infravermelha<\/h3><\/div><\/div>\n\n

A folha de alum\u00ednio \u00e9 um material altamente condutor que bloqueia eficazmente a radia\u00e7\u00e3o infravermelha. Devido \u00e0 sua condutividade, proporciona um bloqueio significativo contra todas as formas de luz infravermelha.<\/p><\/div><\/div><\/div><\/div>\n\n

Posso utilizar a luz infravermelha todos os dias?<\/h3><\/div><\/div>\n\n

A resposta \u00e9 afirmativa. Desde que se respeitem as directrizes fornecidas pelo fabricante, \u00e9 permitido utilizar a terapia da luz vermelha diariamente. Para as pessoas que sofrem de dores cr\u00f3nicas, \u00e9 aconselh\u00e1vel estabelecer um regime di\u00e1rio que inclua a utiliza\u00e7\u00e3o da terapia da luz vermelha.<\/p><\/div><\/div><\/div><\/div>\n\n

Pode obter-se demasiada luz infravermelha<\/h3><\/div><\/div>\n\n

A investiga\u00e7\u00e3o m\u00e9dica demonstrou que a exposi\u00e7\u00e3o excessiva \u00e0 luz infravermelha (IV) pode resultar em v\u00e1rias doen\u00e7as oculares, como cataratas, \u00falceras da c\u00f3rnea e queimaduras da retina. Para minimizar o risco de exposi\u00e7\u00e3o prolongada \u00e0 luz infravermelha, os indiv\u00edduos podem utilizar medidas de prote\u00e7\u00e3o, tais como usar produtos equipados com filtros IR ou revestimentos reflectores.<\/p><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

A radia\u00e7\u00e3o infravermelha, tamb\u00e9m conhecida como infravermelho ou IR, refere-se a um tipo de radia\u00e7\u00e3o electromagn\u00e9tica que se enquadra numa gama espec\u00edfica de comprimentos de onda no espetro eletromagn\u00e9tico.<\/p>","protected":false},"author":4,"featured_media":12863,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"article_term":"","article_term_alternate":"","article_term_def":"","article_hook":"","auto_links":"[{\"keyword\": \"visible light\", \"idxall\": 3, \"keywordtitlesimi\": 0.9163452982902527, \"keywordslugsimi\": 0.9163452982902527, \"paratitlesimi\": 0.7244627475738525, \"paraslugsimi\": 0.7244627475738525, \"slug\": \"what-is-visible-light\", \"title\": \"What is Visible Light\", \"id\": 14198}, {\"keyword\": \"visible light\", \"idxall\": 3, \"keywordtitlesimi\": 0.8551647663116455, \"keywordslugsimi\": 0.8551647663116455, \"paratitlesimi\": 0.6921966075897217, \"paraslugsimi\": 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