文档介绍：光纤温度传感器的研制与开发
摘要
本文从光纤的基础入手,首先介绍了光纤的基础知识,诸如:光缆结构,光导纤维的导光原理等,然后结合传感器引入了光纤传感器的定义,分类及工作原理;而本次设计研究的对象是光纤温度传感器的定义,因此以温度为被测量对象,根据实际需要,结合具体传感器自身的特点,选用了半导体吸收型光纤传感器并介绍了其根本结构,基本原理,同时,针对这种方法所存在的缺点提出了几种改进方案并加以阐述;随后给出了半导体吸收型光纤温度传感器的实现电路,由此一个成熟的光纤温度传感器就设计完毕了。
当然光纤温度传感器有多种实用的设计方法,本文在探讨了半导体吸收型光纤温度传感器之后,又提到了PN结或硅晶体三极管类型的传感器,并把他们进行了比较,并给出最终结论:本课题应用半导体吸收型光纤温度传感器这种方法。
关键词:
光纤,温度,光纤传感器,半导体
Abstract
This paper has introduced that how fiber-optic propagate light, and then introduced the definition, the sort, and the principle of fiber-optic sensors. Because of measuring the temperature, we choose a kind of sensor which uses the semiconductor according to the practice and the own characteristic of the fiber-optic sensors. For this kind of sensor has some disadvantage, we improved the scheme and then give an idea of the circuit of the sensor.
There have so many kinds of sensors, we then introduced others including the sensor which uses bimetal and the sensor which uses PN-junction and pared the latter schemes with the former one. At last, we give the conclusion that in this paper the scheme we has chosen is the sensor that uses semiconductor.
Key words:
Fiber-optic ,temperature, fiber-optic sensors, semiconductor
Abstract ii
绪论 1
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测量装置结构 13
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PIN光电二极管 14
(APD) 15
(LED) 16
光纤传感器的光源要求 17
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光接收机 21
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、LED数字式驱动电路 24
半导体吸收型光纤传感器的接收电路 25
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测温PN结或硅晶体三极管作为传感器 27
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结论 31

绪论
我们知道传感器(sensor)是实现测试和自动控制(包括遥感、遥测、遥控)的首要环节。传感器亦称换能器、变换器,是将被测的某一物理量(或信号)按一定的规律转换成