传感器中英文演讲ppt课件.ppt
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1、12电气于守洋 李阳华齐建明,Living in a rapidly developing societyssat,we have the chance to enjoy many things people who has died can not. 生活在一个快速发展的社会,我们有机会享受很多事情已经死亡的人不能。,Some one may like smart cars有些人可能喜欢智能汽车,Some one may be purepj(r) Military enthusiastsnju:zsts有人可能是纯军事爱好者,But every machine can not work wi
2、thout many special devices in it. These special devices are called “transducer”trnzdju:s(r) or“sensor”,which are widely used in everywhere. Sensors to machine is what sense organs to a people .Lots sensors make up the nervous system of the machine ,then the machine can be controlled by people to do
3、what they want .但每台机器没有很多特别的设备不能工作。这些特殊设备被称为“传感器”或“传感器”,广泛用于无处不在。传感器的机器是人的感觉器官。很多传感器组成机器的神经系统,那么这台机器就可以由人们去做他们想要的东西。,Now ,lets have a realization on the different senses of machine.现在,让我们有一个感官的不同机器上实现。,Photosensitive sensor光敏传感器,Acoustic sensors声学传感器,Gas sensor 气体传感器,chemical sensor化学传感器,Pressure ,t
4、emperature ,fluid sensor压力、温度、流体传感器,Photosensitive sensor(光敏传感器),Photosensitive sensor is one of the most common sensor, its sort is various, mainly include: photocell(光电管), photomultiplier tubes(光电倍增管), photosensitive resistance(光敏电阻), light activated triode(光敏三极管), solar cells (太阳能电池)and infrared
5、sensors(红外线传感器), ultraviolet ltrvalt sensors(紫外线传感器), optical ptk()l fiber type photoelectric sensor(光纤式光电传感器), color sensor, CCD and CMOS image sensor, etc.,Light sensor is the most current production, one of the most widely used sensors, it plays an important role in automatic control(自动控制) and no
6、n-electricity measurement mem()nt technology(非电量电测技术). The simplest photosensitive sensor is photosensitive resistance(光敏电阻), it will create electric current when photons(光子) hit joint(结合处).,Working principle,Light sensors can converts light signals into electrical signals with photosensitive elemen
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