恳请指教!将下面的一段中文翻译成英文。万分感谢!

恳请指教!将下面的一段中文翻译成英文。万分感谢!,第1张

China Automotive sensor market development of the status quo

Sensor technology is the forefront of modern technology, modern information technology is one of the three pillars, the level of a measure of a country's scientific and technological development level one of the important symbols. Sensor industry is recognized at home and abroad with the development of future high-tech industries, which with its high technology content, good economic returns, penetration ability, and the characteristics of broad market prospects for the world.

China's rapid development of sensor market, benefited from the rapid development of automobile market. At present, an ordinary family car on the installation of dozens of the approximately 100 sensors, and luxury cars on the number of sensors can be as many as 200. In 2006, China's automobile market size breakthrough 7200000, 5000000 Passenger breakthrough. 2007 domestic car sales will be more than 8 million, automotive sensors will be a corresponding rise in sales.

Hyundai Electronics from the application of electronic components to the structure of the vehicle electronic systems are essentially have entered a new stage of the increase, the most representative is the heart of sensors. According to the experts forecast from 2004 to 2009, global vehicle sensor will show the growth rate of about 9%, in 2008 the market demand is expected to be up to 1.487 billion. China car market is a hotbed of sensor development, the latest survey data show that in 2006 China's automotive sensor market sales 390 million US dollars, year-on-year growth rate of 42.8 per cent, during the period 2007 2010 China sales of automotive sensor market Compound annual growth rate will exceed 35 per cent. 2007 revenue is expected to reach 540 million US dollars, year-on-year growth rate of 36.3 per cent projected 2009 revenue will be nearly 1.05 billion US dollars, year-on-year growth rate of 40.5 per cent projected 2010 sales will exceed market 1.32 billion US dollars, an increase of 35.2%.

In recent years, the automotive technology upgrades to the sensor products brought higher quality requirements. Main performance at a lower cost, more features and higher reliability of the developed automotive electronics, the higher degree of automation, the greater the dependence of the sensor. Therefore, the car at home and abroad will be focused on the development of sensor technology as high-tech. Automotive sensor applications will not confined to the engine management system, but more and more with environmental protection, safety and intelligent linked. With the development of automotive semiconductor technology, automobiles will become more and more humane, or even to achieve all of the features of electrification, operating more comfort, convenience, environmental protection, vehicle safety, environment, entertainment, consumer demand will drive the rapid automotive sensor market development.

墙面渗水时,材料有个吸水率,当吸饱水后才会溢出来被人发现是渗漏,在此之前,人眼很难发现,但借助热像仪就可以方便的观察到,因为吸水的墙面比热系数和正常墙面不一样,所以温度成像也不一样。这就非常好检测其渗漏了。

热电探测器的主要优点是:全固态化器件、结构紧凑、寿命长;无运动部件,不产生噪音;不受环境影响;可靠性高。缺点是制冷器的性能系数(COP)较低,致冷量小,效率低。

热辐射交换制冷如在外层空间利用外层宇宙的高真空,深低温来制冷。它的显著特点是无运动部件、长寿命、功耗小、无振动干扰。缺点是对轨道和卫星的构形有要求,对环境要求严格,入轨后需经过一段时间的加热放气后才能工作。

气体等熵膨胀制冷:

气体在等熵膨胀时,借膨胀机的活塞向外输出机械功,膨胀后气体的内位能要增加,从而要消耗气体本身的内功能来补偿,致使膨胀后温度显著降低。如斯特林闭循环制冷器,其特点是功耗低、尺寸小、质量轻。

帕尔帖效应制冷即用N型半导体和P型半导体作用偶对,当有直流电通过时电偶对一端发热,另一端变冷,如热电制冷器,又称为半导体或温差电制冷器。


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