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1、Principle of Sensors传感器原理智能和网络传感术Intelligence and Network Sensing Technologies 9.1 智能传感器 Smart Sensors 智能式传感器的结构形式智能式传感器的结构形式智能式传感器的结构形式智能式传感器的结构形式the structure form of intelligent sensor the structure form of intelligent sensor 智能传感器就是将信息检测与信息处理功能结合在一起,主要由传感器单元、信号处理单元、微处理器等组成,其基本结构框图如图所示。Intelligen
2、t sensor is a combination of information detection and information processing functions,which is mainly composed of sensor unit,signal processing unit,microprocessor,etc.Its basic structure block diagram is shown in the figure智能传感器主要有以下三种结构形式智能传感器主要有以下三种结构形式智能传感器主要有以下三种结构形式智能传感器主要有以下三种结构形式Intelligen
3、t sensors mainly have the following three structural forms Intelligent sensors mainly have the following three structural forms 分立模块式分立模块式分立模块式分立模块式:把传统的传感器与其配套的调理电路、微处理器、输出接口与显示电路等相互独立的模块组装在同一壳体内扩展和提高传感器的功能。Discrete modular type:Discrete modular type:The function of the sensor is expanded and impro
4、ved by assembling the traditional sensor and its independent modules such as conditioning circuit,microprocessor,output interface and display circuit in the same shell.集成式集成式集成式集成式:采用微机械加工技术和大规模集成电路工艺技术,利用半导体材料硅作为基本材料来制作敏感元件,将敏感器件、信号调理电路、微处理器单元等集成在一块芯片上构成的。Integrated type:Integrated type:Using micro
5、-machining technology and large-scale integrated circuit technology,the semiconductor material silicon is used as the basic material to make sensitive elements,and the sensitive devices,signal conditioning circuits and microprocessor units are integrated on a chip.混合式混合式混合式混合式:将传感器、转换电路、微处理器和信号调理电路等
6、环节,根据实际需要,以不同的组合方式分别集成在不同的芯片上,构成小的功能单元模块,最后再组合在一个壳体内。Hybrid type:Hybrid type:According to the actual needs,the sensor,conversion circuit,microprocessor and signal conditioning circuit are integrated on different chips in different combinations to form small functional unit modules,and finally combin
7、ed in a shell.智能传感器的应用智能传感器的应用智能传感器的应用智能传感器的应用Application of intelligent sensor Application of intelligent sensor 应用应用应用应用1 1:智能温度传感器设计:智能温度传感器设计:智能温度传感器设计:智能温度传感器设计Application 1:Intelligent Temperature Sensor Design Application 1:Intelligent Temperature Sensor Design 设计方案1:Design Scheme 1:图中传感器采用热敏
8、电阻,测量电路采用电桥电路,信号放大采用仪表放大器AD620,单片机采用AVR系列的单片机ATmegal6,显示模块采用 LCD1602。In the figure,the sensor adopts thermistor,the measuring circuit adopts bridge circuit,the signal amplification adopts instrumentation amplifier AD620,the single chip microcomputer adopts AVR series single chip microcomputer ATmega
9、l6,and the display module adopts LCD1602.智能传感器的应用智能传感器的应用智能传感器的应用智能传感器的应用Application of intelligent sensor Application of intelligent sensor 应用应用应用应用1 1:智能温度传感器设计:智能温度传感器设计:智能温度传感器设计:智能温度传感器设计Application 1:Intelligent Temperature Sensor Design Application 1:Intelligent Temperature Sensor Design 传感器采
10、用数字式集成温度传感器,单片机采用AVR系列的单片机ATmegal6,显示模块采用 LCD1602。The sensor adopts digital integrated temperature sensor,the single chip microcomputer adopts ATmegal6 of AVR series,and the display module adopts LCD1602.设计方案2:Design 2:signal amplificationLCD displayRS232 interfaceHost computerDS18B20智能传感器的应用智能传感器的应用智能传感器的应用智能传感器的应用Application of intelligent sensor Application of intelligent sensor 应用应用应用应用2 2:固体图像传感器:固体图像传感器:固体图像传感器:固体图像传感器Application 2:Solid state image sensorApplication 2:Solid state image sensor