Today thermal power stations by the SIEMENS AG are more than ever complex high-tech products. They provide a continuous and reliable electrical power supply for industry and population worldwide. They do this using fossil fuels very efficient and therefore exceptionally friendly for our environment. To achieve this highest quality of every single component is absolutely imperative. Thus heavily stressed parts like the turbine blades are tested with the latest measurement techniques for example with infrared thermography.
During the production of the turbine blades for thermal power stations the Siemens AG uses ceramic coatings since higher entry temperatures to the turbine blades are reachable which increases efficiency. Thereby it is necessary to ensure the correct application of the coatings without any losses at the flow channels. Mr. Sczepurek together with his team takes the responsibility for the
required test techniques and processes. Out of the range of non-destructive testing methods he chose infrared thermography as it allows for checking large turbine areas particularly fast and reliable at the same time.
InfraTec supports this quality assurance by supplying highperformance and reliable infrared cameras from its own ImageIR® series manufactured in Dresden. The geometric resolution of 640 x 512 pixels being high for commercial, cooled thermal cameras provides together with a fast frame rate the necessary prerequisites to realize the test of every turbine reliably but also in economically justifiable time.
A fast motorized focussing as well as a data acquisition to the split milisecond and a camera control by a capable and customizable software of InfraTec also plays an important role. The flexible interface concept of the ImageIR® camera moreover allows for a seamless integration into the existing system environment. Additionally, the infrared cameras of the ImageIR® series can be combined with external excitation devices due to its precise trigger possibility. Thus, further parameters of turbine blades can be determined within the methodology of active heat flow thermography. Their analysis and
practical application result in a further increase in efficiency for the customers of the thermal power stations of the SIEMENS AG.
SIEMENS AGEnergy Sector Fossil Power Generation Division
www.energy.siemens.com
InfraTec Solution: ImageIR® 8300
在我们的日常生活中,红外热像仪是非常常见的,很多用途都用的到它。红外热像仪是一种用来探测目标物体的红外辐射,并通过光电转换、电信号处理等手段,将目标物体的温度分布图像转换成视频图像的高科技产品。
红外热成像测量技术,它的理论基础是一切物体当温度达到绝对零度(0.0K或-273.15℃)以上时都会发射电磁辐射这一物理现象。红外热成像系统中集成的探测器可以捕捉物体表面产生的红外光谱范围内的辐射能并将其转变成电信号。
红外热成像仪是什么?红外热成像仪是运用光电技术检测物体热辐射的红外线特定波段信号,将该信号转换成可供人类视觉分辨的图像和图形,并可以进一步算出温度值。浅显点来说,红外热成像仪是打破人类视觉障碍,将那些由于屏蔽而无法看到的部分转换为可视化的图像,可以帮忙许多范畴进行勘探、检测、区分等的运用。
红外热像仪在各种设备中有突出的应用,在早前它的功能相对单一,仅仅提供热成像服务,后期还需要经过人工的监控或手动的合成等来达到相应的目的,但是现在的红外热像仪可以直接生成图像,并且用于体温的检测,那么为什么选择非制冷红外热像仪?
东北大学资源与土木工程学院测绘遥感与数字矿山研究所主要从事“遥感-岩石力学”、“地震遥感”、“环境地质”及“3S技术在地质及矿业中的应用”等方面的研究。
近些年消防热成像仪在火灾扑救中的热度一直持续高涨、久居不下。这是因为它可帮助火灾指挥员正确布置力量,红外热像仪会将传感所获取的电信号进行处理,再经成像装置变换成与物体表面温度相对应的热像图,从而确定热点位置和温度。
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