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電子工業(yè)內(nèi)窺鏡光源的用途

來源:http://www.xiaomijiaju.com/ 發(fā)布時間:2022-01-20 瀏覽量:0

工業(yè)內(nèi)窺鏡之所以能夠勝任設(shè)備內(nèi)部的缺陷檢測,一個重要的原因在于其帶有光源能夠照明被檢區(qū)域,而不依賴于被檢區(qū)域的照明條件,表面上看,這是為了應(yīng)對客觀檢測環(huán)境的需求,但實際上對于工業(yè)內(nèi)窺鏡的應(yīng)用推廣關(guān)重要
An important reason why the industrial endoscope can be competent for the defect detection inside the equipment is that it has a light source to illuminate the inspected area, which does not depend on the lighting conditions of the inspected area. On the surface, this is to meet the needs of the objective detection environment, but in fact, it is very important for the application and promotion of the industrial endoscope
有著30年的行業(yè)經(jīng)驗,為您介紹目前應(yīng)用廣泛的電子工業(yè)內(nèi)窺鏡光源的用途、種類及優(yōu)缺點比較。
With 30 years of industry experience, I will introduce the uses, types, advantages and disadvantages of endoscope light sources widely used in electronic industry.
電子內(nèi)窺鏡的光源,其用途就是提供照明,輔助獲取明亮的檢測圖像。檢測環(huán)境千差萬別,對照明的要求也是不同的,例如鑄件的深孔檢測,空間非常狹小,照明要求很容易滿足,而類似壓力容器這種大空間的檢測,需要大功率光源才能達(dá)到滿意的照明效果。 因此采用高亮度照明的光源,并且強度可以根據(jù)環(huán)境進(jìn)行調(diào)節(jié),滿足不同檢測環(huán)境的需求。
The light source of electronic endoscope is used to provide illumination and assist in obtaining bright detection images. The testing environment varies greatly, and the requirements for lighting are also different. For example, for deep hole testing of castings, the space is very narrow, and the lighting requirements are easy to meet. For large space testing such as pressure vessels, high-power light sources are required to achieve satisfactory lighting effects. Therefore, it is best to use a high brightness light source, and the intensity can be adjusted according to the environment to meet the needs of different detection environments.
內(nèi)窺鏡設(shè)備維修
在工業(yè)內(nèi)窺鏡應(yīng)用的早期,多采用弧光燈作為光源,根據(jù)所采用氣體的不同分為氙氣燈光源或鹵素?zé)艄庠吹取S捎谏珳嘏c日光的色溫相當(dāng)接近,光照強,因此弧光燈應(yīng)用還是很多的。缺點主要是啟動時間較長,由于要靠金屬電極之間的電弧來發(fā)光,達(dá)到預(yù)定亮度有一定耗時,再有就是成本較高、壽命相對較短,而且發(fā)熱,給設(shè)備散熱帶來一定的要求。
In the early stage of industrial endoscope application, arc lamp is mostly used as light source, which is divided into xenon lamp light source or halogen lamp light source according to the different gases used. Because the color temperature is quite close to the color temperature of sunlight and the illumination is strong, arc lamps are still widely used. The main disadvantage is that the start-up time is long. Because it depends on the arc between metal electrodes to emit light, it takes a certain time to achieve the predetermined brightness. In addition, it has high cost, relatively short service life and heating, which brings certain requirements for equipment heat dissipation.
隨著科學(xué)技術(shù)的發(fā)展,一些新光源相繼問世,其中LED光源很快被應(yīng)用到內(nèi)窺檢測領(lǐng)域,并有取代弧光燈的趨勢。LED光源的優(yōu)勢包括:
With the development of science and technology, some new light sources have come out one after another. Among them, LED light sources are soon applied to the field of endoscopic detection, and there is a trend to replace arc lamps. The advantages of LED light sources include:
能耗低,發(fā)熱低,低碳;
Low energy consumption, low heating, low carbon and environmental protection;
穿透性強,在各種復(fù)雜的工業(yè)檢測環(huán)境中都可以保持較高的辨識度
It has strong penetration and can maintain a high degree of identification in various complex industrial detection environments
壽命長達(dá)數(shù)萬小時,是氙氣燈的百倍有余,應(yīng)用于內(nèi)窺鏡設(shè)備中,基本不用考慮其壽命問題
The service life is tens of thousands of hours, which is more than 100 times that of xenon lamp. When applied to endoscope equipment, its service life basically does not need to be considered
沒有啟動時間的限制,可以瞬間點亮,為檢測節(jié)省時間
There is no limit on the start-up time. It can be lit instantly to save time for detection
體積小,形式多樣化,更方便集成在電子內(nèi)窺鏡設(shè)備中
The utility model has the advantages of small volume and diversified forms, and is more convenient to be integrated in the electronic endoscope equipment
色域廣,而且有更高的色彩飽和度,有助于成像逼真的畫質(zhì),這對于內(nèi)窺檢測來說關(guān)重要;
Wide color gamut and higher color saturation contribute to realistic image quality, which is very important for endoscopic detection;
亮度均勻,LED是一種平面狀光源,組合封裝后能實現(xiàn)較好的亮度均勻性,很好地輔助內(nèi)窺鏡顯示技術(shù)實現(xiàn)均勻的畫面效果。
The brightness is uniform. LED is a planar light source. After combined packaging, it can achieve good brightness uniformity, which can well assist the endoscope display technology to achieve uniform picture effect.
目前主流廠家大都采用LED光源,也有一些采用更新的激光光源技術(shù),激光光源是利用激發(fā)態(tài)粒子在受激輻射作用下發(fā)光的相干光源,具有單色性好、方向性強、亮度高的優(yōu)點,在成像領(lǐng)域具有一定的潛力。由于其相干的光學(xué)原理,在用于檢測照明時會隨機生成一些顆粒狀的圖案,俗稱光斑或散斑,易造成檢測圖像失真,影響成像效果。激光光源作為一項新技術(shù),其穩(wěn)定性有待接受市場的檢驗,失真的問題也有待改善,因此主流廠家做得比較少。更多還是采用前面介紹的LED光源
At present, most mainstream manufacturers use LED light sources, and some use newer laser light source technology. Laser light sources are coherent light sources that use excited particles to emit light under the action of stimulated radiation. They have the advantages of good monochromaticity, strong directivity and high brightness, and have a certain potential in the field of imaging. Due to its coherent optical principle, some granular patterns, commonly known as spot or speckle, will be randomly generated when used to detect illumination, which is easy to cause detection image distortion and affect imaging effect. As a new technology, the stability of laser light source needs to be tested by the market, and the problem of distortion needs to be improved. Therefore, mainstream manufacturers do less. More or use the LED light source introduced earlier
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