紅外線傳感器及其應(yīng)用

23頁(yè) 1.1萬(wàn)字 可以做為科技類小論文，也可以作為其他論文的外文翻譯，有中英文對(duì)應(yīng)翻譯。

紅外線傳感器是利用物體產(chǎn)生紅外輻射的特性，實(shí)現(xiàn)自動(dòng)檢測(cè)的傳感器。在物理學(xué)中，我們已經(jīng)知道可見光、不可見光、紅外光及無(wú)線電等都是電磁波，它們之間的差別只是波長(zhǎng)(或頻率)的不同而已。將各種不同的電磁波按照波長(zhǎng)(或頻率)排成可排成為電磁波譜。人的眼睛能看到的可見光按波長(zhǎng)從長(zhǎng)到短排列，依次為紅、橙、黃、綠、青、藍(lán)、紫。紅外線屬于不可見光波的范疇，它的波長(zhǎng)一般在0.76—600μm之間(稱為紅外區(qū))。而紅外區(qū)通常又可分為近紅外(0.73～1.5μm)、中紅外(1.5一l0μm)和遠(yuǎn)紅外(10μm以上)，在300μm以上的區(qū)域又稱為“亞毫米波”。近年來(lái)，紅外輻射技術(shù)已成為一門發(fā)展迅速的新興學(xué)科。它已經(jīng)廣泛應(yīng)用于生產(chǎn)、科研、軍事、醫(yī)學(xué)等各個(gè)領(lǐng)域。
一， 紅外輻射的產(chǎn)生及其性質(zhì)
紅外輻射是由于物體(固體、液體和氣體)內(nèi)部分子的轉(zhuǎn)動(dòng)及振動(dòng)而產(chǎn)生的。這類振動(dòng)過(guò)程是物體受熱而引起的，只有在絕對(duì)零度(-273.16℃)時(shí)，一切物體的分子才會(huì)停止運(yùn)動(dòng)。所以在絕對(duì)零度時(shí)，沒(méi)有一種物體會(huì)發(fā)射紅外線。換言之，在一般的常溫下，所有的物體都是紅外輻射的發(fā)射源。例如火焰、軸承、汽車、飛機(jī)、動(dòng)植物甚至人體等都是紅外輻射源。紅外線和........


Infra-red sensor and its application

Infra-red sensors make use of objects have the characteristics of infrared radiation, automatically detecting sensors. In physics, we know visible light is not visible light, infrared light and radio are all electromagnetic waves, which is the difference between the wavelength (or frequency) is different. Will be different according to the wavelength of electromagnetic waves (or frequency) can be formed into row of the electromagnetic spectrum. Human eyes can see by the wavelength of visible light from long to short order, followed by red, orange, yellow, green, green, blue and purple. Infra-red visible light waves do not belong to the scope of its wavelength in general between the 0.76-600μm (known as infrared). The infrared area usually can be divided into near-infrared (0.73 ~ 1.5μm), mid-infrared (1.5-l0μm) and far-infrared (10μm above), more than 300μm in the region, also known as "sub-millimeter wave." In recent years, infrared radiation technology has become a fast-growing emerging discipline. It has been widely used in the production, scientific research, military, medical and other fields.
1, infrared radiation and its nature
Infrared radiation is due to objects (solid, liquid and gas) elements within the rotation and vibration generated. Such is the process of vibration caused by the heat of objects, only in the absolute zero (-273.16 ℃).......