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英语翻译传统电子安全报警系统主要是通过传感器自动检测,产生报警信号,从现场发出报警信号或通过专门电缆近距离报警,从而引起

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/17 22:44:20
英语翻译
传统电子安全报警系统主要是通过传感器自动检测,产生报警信号,从现场发出报警信号或通过专门电缆近距离报警,从而引起人们的警觉.通过多年的研究和发展,现在的报警器可以说是门类众多.由于报警器的飞速发展和社会各个领域的急切需要,能应用的领域越来越多,特别是在民用领域更是急速发展.近年来,红外线报警器已经成为报警领域的一个热点,由于其采用的是不可见的红外线探测,所以具有隐蔽性好、安全等特点.红外线传感器按机理不同可以分为光探测型和热探测型.光探测传感器是利用光子效应的红外探测器.这类传感器响应速度快、灵敏度高、检测特性好,但需要冷却,使用不方便.而且器件的检测灵敏度与红外波长有关.热探测传感器是利用热释电效应的红外探测器.在接收到目标的红外辐射后温度升高,温度的升高又引起传感器内部某些物理量的变化,通过检测物理量的变化来确定红外线辐射.这类传感器在室温条件下工作,检测灵敏度也很高,响应速度也很快,而且与红外线辐射波长无关,可探测功率只受背景辐射的限制,应用很方便.本文设计的是被动式热释电红外探测器.文 中主要论述了热释电的原理、热释电探测器的特性、BISS0001传感信号处理器、555定时器组成的多谐振荡报警电路等内容.最后设计完成了热释电红外探测报警器的硬件电路.
The traditional electron safe alarm system mainly is through thesensor automatic detection,produces the alarm,sends out the alarmfrom the scene or reports to the police through the special electriccable near distance,thus causes people's vigilance.Through manyyears research and the development,the present alarm apparatus maysay is the class is multitudinous.As a result of the alarm apparatusrapid development and the social each domain anxious need,can theapplication domain be more and more many,specially is rapidlydevelops in the civil domain.In recent years,the infrared alarmapparatus already became reports to the police a domain hot spot,because it used was not the obviously infrared acquisition,thereforehad the hiding to be good,characteristic and so on security.Theinfrared sensor is different according to the mechanism may divideinto the light survey and the hot survey.
The light acquisition sensor is uses the photon effect the infraredacquisition aid.This kind of sensor speed of response quick,thesensitivity high,the examination characteristic is good,but needs tocool,uses not conveniently.Moreover the component examinationsensitivity and the infrared wave length concern.The hot acquisitionsensor is uses hotly releases the electricity effect the infraredacquisition aid.After receives the goal the infrared radiationtemperature increment,the temperature elevates causes the sensorinterior certain physical quantities changes,through examinationphysical quantity change definite infrared emission.This kind ofsensor works under the room temperature condition,examinationsensitivity also very high,speed of response also very quick,moreover has nothing to do with with the infrared emission wavelength,may survey the power only to receive the background radiationthe limit,the application is very convenient.This article designs isthe passive form hotly releases the electricity infrared acquisitionaid.In the article mainly elaborated has hotly released theelectricity the principle,hotly releases content and so on manyalarm circuit which the electric detector the characteristic,the BISS0001 signal processor,555 timers composed.Finallydesigned completes has hotly released the electricity infrareddetection alarm apparatus the hardware electric circuit.