火焰探测器优秀课件.ppt
火焰探测器第1页，本讲稿共13页Welding plate 焊接板焊接板 第2页，本讲稿共13页Operational amplifier运放（运放（Chip 芯片）芯片）The555chip555芯片Chip socket 芯片插座 coreplate芯片The chip is refers integrated circuit wafers,volume is small.芯片是指内含集成电路的硅片，体积很小芯片是指内含集成电路的硅片，体积很小.第3页，本讲稿共13页Potentiometer电位器Potentiometer is a variable resistor.Usually consists of a resistor body and the rotating or sliding system,which relies on a moving contact in the resistor body movement,obtaining partial voltage output.电位器是可变电阻器的一种。通常电位器是可变电阻器的一种。通常是由电阻体与转动或滑动系统组成，是由电阻体与转动或滑动系统组成，即靠一个动触点在电阻体上移动，即靠一个动触点在电阻体上移动，获得部分电压输出。获得部分电压输出。第4页，本讲稿共13页Thermistor 热敏电阻热敏电阻 The thermistor is changes with the temperature,the resistance of the resistance change.随着温度变化阻值变化的电阻.第5页，本讲稿共13页Switching diode 开关二极管 Semiconductor diode having a unidirectional conductive properties,Thediodewillbeinthecircuittocontrolthecurrentisswitchedonorofftherole,becominganidealelectronicswitch.半导体二极管具有单向导电性能,该二极管将是在电路起到控制的电流交换或关闭的作用,成为一个理想的电子开关.第6页，本讲稿共13页LED 发光二级管：LightemittingdiodeLED,usesgalliumarsenide,galliumaluminumarsenideandgalliumphosphide,material,itsinternalstructureasap-njunction,havingasingleconductivity.（发光二极管简称LED，采用砷化镓、镓铝砷、和磷化镓等材料制成，其内部结构为一个PN结，具有单向导电性。发光二级管 砷化镓 镓铝砷 磷化镓 第7页，本讲稿共13页Ceramic capacitors 103瓷片电容瓷片电容103 Tiles capacitance is a ceramic material as medium,in the ceramic surface is coated with a thin layer of metal,and then after high-temperature sintering as a capacitor electrode.Typically used for high stability oscillation circuit,as the circuit,bypass capacitors and padding capacitor.瓷片电容是一种用陶瓷材料作介质,在陶瓷表面涂覆一层金属薄膜,再经高温烧结后作为电极而成的电容器。通常用于高稳定振荡回路中，作为回路、旁路电容器及垫整电容器。第8页，本讲稿共13页 Electrolytic capacitor 电解电容 22uF/25V Electrolytic capacitor is a capacitor of a metal foil as the cathode and the positive closely adhered to the metal oxide is a dielectric,a cathode made of conductive material,electrolyte and other materials together,because the electrolyte is the main part of the cathode,electrolytic capacitor so named.电解电容是电容的一种，金属箔为正极与正极电解电容是电容的一种，金属箔为正极与正极紧贴金属的氧化膜是电介质，阴极由导电材料、紧贴金属的氧化膜是电介质，阴极由导电材料、电解质和其他材料共同组成，因电解质是阴极电解质和其他材料共同组成，因电解质是阴极的主要部分，电解电容因此而得名。的主要部分，电解电容因此而得名。第9页，本讲稿共13页resistance 电阻电阻 100、1K、10K、20K Resistance to say conductor on the current block size.The resistance of a conductor is bigger,said conductors of electric current greater the impediment.电阻用来表示导体对电流阻碍作用的大小。导体的电阻越大，表示导体对电流的阻碍作用越大。第10页，本讲稿共13页Buzzer 蜂鸣器蜂鸣器Buzzerisanintegratedstructureoftheelectronicbuzzer.蜂鸣器是一种一体化结构的电子讯响器Solder wire 焊锡丝焊锡丝 Solder wire is made of tin alloy and additives is composed of two parts.Alloy composition of tin lead,lead-free tin alloy additives homogeneous perfusion to the middle part of.焊锡丝是由锡合金和助剂两部分组成。合金成份分为锡焊锡丝是由锡合金和助剂两部分组成。合金成份分为锡铅、无铅助剂均匀灌注到锡合金铅、无铅助剂均匀灌注到锡合金中间部位。中间部位。第11页，本讲稿共13页Wire铁丝Metalwire金属丝 The general made of copper or aluminum,silver is also useful The general made of copper or aluminum,silver is also useful for(conductive,heat resistance),used to lead the current or for(conductive,heat resistance),used to lead the current or heat conduction.heat conduction.一般由铜或铝制成，也有用银线所制（导电、热性好），用来疏导一般由铜或铝制成，也有用银线所制（导电、热性好），用来疏导一般由铜或铝制成，也有用银线所制（导电、热性好），用来疏导一般由铜或铝制成，也有用银线所制（导电、热性好），用来疏导电流或者是导热。电流或者是导热。电流或者是导热。电流或者是导热。第12页，本讲稿共13页第13页，本讲稿共13页
