{"id":14166,"date":"2023-09-24T15:24:26","date_gmt":"2023-09-24T15:24:26","guid":{"rendered":"https:\/\/www.rayzeek.com\/?p=14166"},"modified":"2023-12-26T08:44:53","modified_gmt":"2023-12-26T08:44:53","slug":"what-is-transmittance","status":"publish","type":"post","link":"https:\/\/www.rayzeek.com\/pt\/glossario\/o-que-e-transmitancia","title":{"rendered":"O que \u00e9 a transmit\u00e2ncia"},"content":{"rendered":"

O que \u00e9 a transmit\u00e2ncia<\/h2>

A transmit\u00e2ncia \u00e9 a medida da quantidade de luz que \u00e9 capaz de passar atrav\u00e9s de uma superf\u00edcie ou material. \u00c9 uma propriedade \u00f3tica fundamental que quantifica a capacidade de um material transmitir luz. <\/p>

Quando a luz interage com uma superf\u00edcie ou material, pode ser transmitida, reflectida ou absorvida. A transmit\u00e2ncia centra-se especificamente na parte da luz que passa pelo outro lado da superf\u00edcie. Est\u00e1 intimamente relacionada com o conceito de reflect\u00e2ncia, que mede a quantidade de luz que \u00e9 reflectida por uma superf\u00edcie.<\/p>

A transmit\u00e2ncia \u00e9 expressa como um r\u00e1cio, comparando a intensidade da luz transmitida (I) com a intensidade da luz incidente (I0). Este r\u00e1cio \u00e9 designado por T. O valor da transmit\u00e2ncia representa a percentagem de luz incidente que consegue atravessar o material.<\/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>

Por exemplo, considere-se um bloco de vidro semi-transparente. Se 30% da luz incidente for reflectida pela superf\u00edcie do vidro e 35% for absorvida pelas mol\u00e9culas do vidro, os restantes 35% de luz passar\u00e3o pelo outro lado do bloco. Neste caso, o bloco de vidro tem uma transmit\u00e2ncia de 35%.<\/p>

A transmit\u00e2ncia \u00e9 importante porque afecta o desempenho e a efici\u00eancia dos sistemas de ilumina\u00e7\u00e3o. Ao compreender a transmit\u00e2ncia de diferentes materiais, os profissionais da ilumina\u00e7\u00e3o podem tomar decis\u00f5es informadas sobre a sele\u00e7\u00e3o de materiais e a conce\u00e7\u00e3o de sistemas de ilumina\u00e7\u00e3o para alcan\u00e7ar os n\u00edveis de ilumina\u00e7\u00e3o e a efici\u00eancia energ\u00e9tica desejados.<\/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

O que significa a transmiss\u00e3o de luz 12%<\/h3><\/div><\/div>\n\n

A transmiss\u00e3o visual da luz, tamb\u00e9m conhecida como VLT, refere-se \u00e0 percentagem de luz vis\u00edvel que pode passar atrav\u00e9s de uma lente. No caso de uma lente com um VLT de 12%, isso significa que apenas 12% da luz consegue passar, enquanto os restantes 88% s\u00e3o bloqueados.<\/p><\/div><\/div><\/div><\/div>\n\n

O que significa a transmiss\u00e3o de luz 13%<\/h3><\/div><\/div>\n\n

A Transmiss\u00e3o de Luz Vis\u00edvel (VLT) \u00e9 um termo comummente encontrado quando se estudam \u00f3culos de sol. Refere-se \u00e0 quantidade de luz que passa atrav\u00e9s da lente e chega ao olho. No caso da transmiss\u00e3o de luz 13%, significa que uma percentagem menor de luz est\u00e1 a ser transmitida atrav\u00e9s da lente. Isto indica que os \u00f3culos de sol t\u00eam um VLT inferior em compara\u00e7\u00e3o com os \u00f3culos de sol normais, que normalmente t\u00eam um VLT de 15 a 25%.<\/p><\/div><\/div><\/div><\/div>\n\n

O que \u00e9 um exemplo de transmiss\u00e3o de luz?<\/h3><\/div><\/div>\n\n

A transmiss\u00e3o de luz \u00e9 o processo em que a luz atravessa um material transparente ou transl\u00facido. Um exemplo de transmiss\u00e3o de luz \u00e9 quando a luz do sol entra numa sala atrav\u00e9s de uma janela, enchendo-a de ilumina\u00e7\u00e3o.<\/p><\/div><\/div><\/div><\/div>\n\n

Qual \u00e9 o objetivo da transmit\u00e2ncia<\/h3><\/div><\/div>\n\n

O objetivo da transmit\u00e2ncia \u00e9 ajudar a identificar subst\u00e2ncias desconhecidas e determinar a sua concentra\u00e7\u00e3o numa amostra. Utilizando um conjunto de padr\u00f5es e uma tabela de transmit\u00e2ncia para absorv\u00e2ncia, os valores de transmit\u00e2ncia podem ser rapidamente convertidos em absorv\u00e2ncia, tanto em laborat\u00f3rio como no terreno.<\/p><\/div><\/div><\/div><\/div>\n\n

O que significa uma percentagem elevada de transmiss\u00e3o de luz?<\/h3><\/div><\/div>\n\n

Assim, uma percentagem elevada de transmiss\u00e3o de luz indica que a absor\u00e7\u00e3o de luz \u00e9 m\u00ednima ou nula. Inversamente, uma percentagem de transmiss\u00e3o de luz baixa sugere uma maior quantidade de luz a ser absorvida. No caso de uma amostra absorver totalmente a luz, a percentagem de transmiss\u00e3o seria zero.<\/p><\/div><\/div><\/div><\/div>\n\n

O que \u00e9 a transmit\u00e2ncia e a absor\u00e7\u00e3o da luz<\/h3><\/div><\/div>\n\n

A transmit\u00e2ncia refere-se \u00e0 medi\u00e7\u00e3o da quantidade de luz que atravessa a amostra, enquanto a absorv\u00e2ncia se refere \u00e0 medi\u00e7\u00e3o da quantidade de luz que \u00e9 absorvida pela amostra.<\/p><\/div><\/div><\/div><\/div>\n\n

O que significa 100 transmit\u00e2ncia<\/h3><\/div><\/div>\n\n

Uma transmit\u00e2ncia de 100 indica que o composto permite a passagem de toda a frequ\u00eancia sem qualquer absor\u00e7\u00e3o.<\/p><\/div><\/div><\/div><\/div>\n\n

O que significa baixa transmit\u00e2ncia<\/h3><\/div><\/div>\n\n

Valores mais baixos de transmit\u00e2ncia do % indicam que o composto absorve uma parte da energia, resultando no aparecimento de picos descendentes.<\/p><\/div><\/div><\/div><\/div>\n\n

O que \u00e9 o valor de transmiss\u00e3o da luz<\/h3><\/div><\/div>\n\n

A transmit\u00e2ncia da luz vis\u00edvel (VLT) refere-se \u00e0 percentagem de luz vis\u00edvel que pode passar atrav\u00e9s de um material de envidra\u00e7amento. \u00c9 um fator importante para otimizar a ilumina\u00e7\u00e3o natural.<\/p><\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"

A transmit\u00e2ncia \u00e9 a medida da quantidade de luz que \u00e9 capaz de passar atrav\u00e9s de uma superf\u00edcie ou material. \u00c9 uma propriedade \u00f3tica fundamental que quantifica a capacidade de um material transmitir luz.<\/p>","protected":false},"author":4,"featured_media":12861,"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\": \"reflectance\", \"idxall\": 0, \"keywordtitlesimi\": 0.9341383576393127, \"keywordslugsimi\": 0.9341383576393127, \"paratitlesimi\": 0.7622657418251038, \"paraslugsimi\": 0.7622657418251038, \"slug\": \"what-is-reflectance\", \"title\": \"What is Reflectance\", \"id\": 13992}, {\"keyword\": \"performance and efficiency of lighting systems\", \"idxall\": 0, \"keywordtitlesimi\": 0.8374252080917359, \"keywordslugsimi\": 0.8374252080917359, \"paratitlesimi\": 0.6333796083927155, 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13762}]","article_topic":"","article_fact_check":"","mt_social_share":"","mt_content_meta":"","mt_glossary_display":"","glossary_heading":"","glossary":"transmittance","glossary_alter":"","glossary_def":"","article_task":"","footnotes":""},"categories":[102],"tags":[99],"class_list":["post-14166","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-glossary"],"yoast_head":"\nWhat is Transmittance - Rayzeek<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rayzeek.com\/pt\/glossario\/o-que-e-transmitancia\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What is Transmittance - Rayzeek\" \/>\n<meta property=\"og:description\" content=\"Transmittance is the measurement of the amount of light that is able to pass 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