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        <title>光电报警电子电路图</title>
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            <title><![CDATA[简单的报警电路 蜂鸣器报警电路图解说明]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2022/202210131904290.html</link>
            <description><![CDATA[报警电路是一种为防止或预防某事件发生所造成的后果，以声音、光、气压等形式来提醒或警示我们应当采取某种行动的电路。随着科技的进步，报警电路已经被应用于系统故障、安全防范、交通运输、医疗救护、应急救灾、感应检测等领域。 蜂鸣器报警电路图则是一种非常简单实用的报警电路，应用非常广泛，结构简单，价钱便宜。 蜂鸣器是电声器材的一种，常常经过动态用于报警、提示、警示等场合。蜂鸣器与喇叭在用法上也有类似的本质，一般]]></description>
            <pubDate>Thu, 13 Oct 2022 12:01:35</pubDate>
            <category>光电报警电子电路图</category>
            <author>烜芯微科技</author>
            <guid>https://www.elecfans.com/article/88/131/192/2022/202210131904290.html</guid>
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            <title><![CDATA[光电报警电路图（光电传感器线路/红外二极管发射电路/光电报警电路）]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2021/202111011724915.html</link>
            <description><![CDATA[传统的报警器通常采用触摸式、开关报警器等方式，借助于模拟电路和数字逻辑电路，采用模块化的设计思想，电路简单容易实现，工作稳定。]]></description>
            <pubDate>Mon, 01 Nov 2021 16:37:46</pubDate>
            <category>光电报警电子电路图</category>
            <author></author>
            <guid>https://www.elecfans.com/article/88/131/192/2021/202111011724915.html</guid>
        </item><item>
            <title><![CDATA[防盗门报警器电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2021/202107161664172.html</link>
            <description><![CDATA[给大家分享两个防盗门报警器电路图；希望能够对大家有所启发。 这个防盗门报警器电路图是由555芯片组成的模拟汽笛声的一种报警器；大家可以参考。   这个电路相对比较复杂，电路由触发装置、单稳态延时电路、报警声发生器、音频功放电路、灯光控制电路、预置封锁电路和电源电路等部分组成。   BZ：金属蜂鸣器 C1：5UF电容器 C2：电容器 D1：IN4007二极管 FT：微型闪光灯 L1：氖灯 Q1：三极管 Q2：可控硅整流器 R1:200Ω电阻 R2：820Ω电阻 R3：10M电阻器]]></description>
            <pubDate>Fri, 16 Jul 2021 15:09:31</pubDate>
            <category>光电报警电子电路图</category>
            <author></author>
            <guid>https://www.elecfans.com/article/88/131/192/2021/202107161664172.html</guid>
        </item><item>
            <title><![CDATA[防盗报警器电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2019/201910311101978.html</link>
            <description><![CDATA[超低功耗断线式防盗报警器，具有简单易制、成本低廉、静态耗电小（仅有8μA）等特点，其非常适用于家庭、仓库、店铺及养殖场等场所的防盗。]]></description>
            <pubDate>Thu, 31 Oct 2019 11:11:59</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2019/201910311101978.html</guid>
        </item><item>
            <title><![CDATA[烟雾探测器如何选型 离子式和光电型的区别]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2018/20180821734838.html</link>
            <description><![CDATA[离子型烟雾探测器对于那些微小的烟雾粒子的感应要灵敏一些，而光电型烟雾探测器恰恰相反，光电型烟雾探测器对于那些稍大的烟雾粒子的感应较灵敏，如果火灾产生的烟尘都是比较大的颗粒，那么采用光电型烟雾探测器比较好，而如果火灾产生的烟尘都是比较小的颗粒，那么采用离子型烟雾探测器比较好]]></description>
            <pubDate>Tue, 21 Aug 2018 15:49:46</pubDate>
            <category>光电报警电子电路图</category>
            <author>周碧俊</author>
            <guid>https://www.elecfans.com/article/88/131/192/2018/20180821734838.html</guid>
        </item><item>
            <title><![CDATA[烟雾报警器闪红灯的解决办法详解]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2018/20180821734794.html</link>
            <description><![CDATA[烟雾报警器在正常运行状态下，大多数品牌的烟雾探测器是有指示灯闪烁的，直接容易理解的大白话这表示控制器在巡检该探测器，对这探测器的工作状态进行检查。如果报警状态指示灯就会常亮。]]></description>
            <pubDate>Tue, 21 Aug 2018 15:13:14</pubDate>
            <category>光电报警电子电路图</category>
            <author>周碧俊</author>
            <guid>https://www.elecfans.com/article/88/131/192/2018/20180821734794.html</guid>
        </item><item>
            <title><![CDATA[TI PGA450-Q1超声波汽车倒车解决方案涵电路图介绍]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2018/20180705706501.html</link>
            <description><![CDATA[TI 公司的PGA450-Q1是全集成超声波传感器接口器件,集成了电压稳压器,12位SAR ADC,8位微控制器,数字带通滤波器,DAC,两个NMOS低边驱动器,低噪音放大器,振荡器,LIN 2.1物理接口协议接口.主要用于汽车泊车, 盲区检测和物体检测.本文介绍了PGA450-Q1主要特性,功能方框图, 应用电路图, 评估板PGA450-Q1 EVM主要特性,电路图和PCB布局图. The PGA450-Q1 is a fully integrated interface device for ultrasonic transducers used in automotive park distance or object detection applications. It incorporates these system bloc]]></description>
            <pubDate>Sat, 22 Sep 2018 08:05:00</pubDate>
            <category>光电报警电子电路图</category>
            <author></author>
            <guid>https://www.elecfans.com/article/88/131/192/2018/20180705706501.html</guid>
        </item><item>
            <title><![CDATA[具有防盗报警功能电子电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2014/20140911353499.html</link>
            <description><![CDATA[为了满足人们外出时随身携带提包防盗的要求，具有防盗报警功能的提包应运而生。然而，功能较完善的防盗提包，价格昂贵，结构又较复杂，难以被人们接受；而功能简单的防盗提包，虽价格便宜，但实用性又差，这样，便导致具有防盗报警功能的提包不能得到推广普及。]]></description>
            <pubDate>Thu, 11 Sep 2014 14:27:13</pubDate>
            <category>光电报警电子电路图</category>
            <author>秩名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2014/20140911353499.html</guid>
        </item><item>
            <title><![CDATA[555组成的断线式报警器制作电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2014/20140424340884.html</link>
            <description><![CDATA[一、制作目的 当有人非法闯入时报警器报警 二、电路设计制作分析 ①、电路原理图 ②、原理分析 电路的核心部分由NE555组成，R1、R2、C1和NE555组成一个频率越为3KHz左右的多谐振荡电路，当电路接通电源时，振荡器开始工作蜂鸣器LS1发出响声；当1和2被短接时，振荡器的工作条件被破坏，LS1停止工作。 ③、电路分析 当打开电源时，如果控制开关闭合或动触点与静触点接触，报警器处于待机状态； 当控制开关开路时，门打开，报警器报警；（反之）报警]]></description>
            <pubDate>Thu, 24 Apr 2014 10:50:08</pubDate>
            <category>光电报警电子电路图</category>
            <author>天天向上</author>
            <guid>https://www.elecfans.com/article/88/131/192/2014/20140424340884.html</guid>
        </item><item>
            <title><![CDATA[用光敏器件实现光电报警的实验]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2012/20120705278837.html</link>
            <description><![CDATA[常见的光敏器件有光敏电阻、光电二极管、光电三极管、光耦等。本实验中使用了光电二极管和光电三极管。]]></description>
            <pubDate>Thu, 05 Jul 2012 14:11:49</pubDate>
            <category>光电报警电子电路图</category>
            <author>灰色天空</author>
            <guid>https://www.elecfans.com/article/88/131/192/2012/20120705278837.html</guid>
        </item><item>
            <title><![CDATA[短路断路功能的电桥式语音报警器]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2012/20120704278628.html</link>
            <description><![CDATA[本报警器，具有断路与短路报警功能，一旦触发报警，即使将警戒用的连线恢复原状，报警声亦不停止，连续发出宏亮的"抓贼呀!"的喊声，直至主人将报警的电源关断为止。]]></description>
            <pubDate>Wed, 04 Jul 2012 10:52:54</pubDate>
            <category>光电报警电子电路图</category>
            <author>灰色天空</author>
            <guid>https://www.elecfans.com/article/88/131/192/2012/20120704278628.html</guid>
        </item><item>
            <title><![CDATA[简单实用的电梯停电报警电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2012/20120704278617.html</link>
            <description><![CDATA[这里介绍一种声报警电路，如下图所示，只要电梯电源出现故障，在电梯的配电房即会发出声报警信号。该电路工作方式如下：电路由电池6V供电，一旦电梯交流电源出现故障，电路即发]]></description>
            <pubDate>Wed, 04 Jul 2012 10:14:45</pubDate>
            <category>光电报警电子电路图</category>
            <author>灰色天空</author>
            <guid>https://www.elecfans.com/article/88/131/192/2012/20120704278617.html</guid>
        </item><item>
            <title><![CDATA[红外线探测防盗报警器电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2012/20120523273178.html</link>
            <description><![CDATA[该 报警器 能探测人体发出的红外线，当人进入报警器的监视区域内，即可发出报警声，适用于家庭、办公室、仓库、实验室等比较重要场合防盗报警。 电路工作原理： 该装置由红外线]]></description>
            <pubDate>Wed, 23 May 2012 11:55:23</pubDate>
            <category>光电报警电子电路图</category>
            <author>秩名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2012/20120523273178.html</guid>
        </item><item>
            <title><![CDATA[锁控防盗报警电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2012/20120328265991.html</link>
            <description><![CDATA[锁控防盗报警电路图,该电路由RS触发器、选通振荡器、报警电路等组成。其中RS触发器由与非门F2、F3组成，选通振荡器由集成电路TWH8751和R、C组成。]]></description>
            <pubDate>Wed, 28 Mar 2012 14:30:02</pubDate>
            <category>光电报警电子电路图</category>
            <author>秩名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2012/20120328265991.html</guid>
        </item><item>
            <title><![CDATA[带有迷惑性质的防盗报警电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2012/20120320264891.html</link>
            <description><![CDATA[当电话处于挂机状态时，电话线路L1、L2之间有45～60V的电压，由于电容C1、C2的作用，不能触发由集成电路IC1等元器件组成的延时电路。]]></description>
            <pubDate>Tue, 20 Mar 2012 16:32:18</pubDate>
            <category>光电报警电子电路图</category>
            <author>灰色天空</author>
            <guid>https://www.elecfans.com/article/88/131/192/2012/20120320264891.html</guid>
        </item><item>
            <title><![CDATA[具有报警功能的简易密码锁]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2012/20120209259643.html</link>
            <description><![CDATA[这款新颖具有报警功能的简易密码锁，电路简洁清晰，功能较完善，不但保密性较强，而且还具有报警功能。只要按照设定的电子密码依次接通三个开关KO、K8、K6，才能将锁打开。]]></description>
            <pubDate>Thu, 09 Feb 2012 11:07:36</pubDate>
            <category>光电报警电子电路图</category>
            <author>灰色天空</author>
            <guid>https://www.elecfans.com/article/88/131/192/2012/20120209259643.html</guid>
        </item><item>
            <title><![CDATA[贵重物品检测电路设计]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2012/20120202258989.html</link>
            <description><![CDATA[为达到贵重物品检测的要求，将一单调谐回路谐振放大器至于卡片内，卡片挂在贵重物品上，卡片向外发出射频信号，当其出入宿舍时，与副边线圈发生谐振，负载电压发生变化，通过]]></description>
            <pubDate>Thu, 02 Feb 2012 14:14:10</pubDate>
            <category>光电报警电子电路图</category>
            <author>叶子</author>
            <guid>https://www.elecfans.com/article/88/131/192/2012/20120202258989.html</guid>
        </item><item>
            <title><![CDATA[单只闪烁发光二极管的应用电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2011/20110928218752.html</link>
            <description><![CDATA[如图所示为单只闪烁发光二极管的应用电路。
]]></description>
            <pubDate>Wed, 28 Sep 2011 11:31:41</pubDate>
            <category>光电报警电子电路图</category>
            <author>秩名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2011/20110928218752.html</guid>
        </item><item>
            <title><![CDATA[有害气体泄漏报警器电路设计]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2011/20110823211488.html</link>
            <description><![CDATA[该多功能报警器由电源电路、有害气体检测电路。本文提供了整个报警电路印制电路板图，如图2所示，根据此印制电路板图可以先制作电路板，电路板制好后，接着按要求根据报警电路]]></description>
            <pubDate>Tue, 23 Aug 2011 12:07:08</pubDate>
            <category>光电报警电子电路图</category>
            <author>叶子</author>
            <guid>https://www.elecfans.com/article/88/131/192/2011/20110823211488.html</guid>
        </item><item>
            <title><![CDATA[915MHz接收器警报电路设计]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2011/20110803208446.html</link>
            <description><![CDATA[这种设计思想说明了一个915MHz的接收器可以发出警报声，当发射器超出了预定的边界，MAX2623发射器(图2)超出指定perimeter.The触发距离移动时，图1 的接收电路会发出音响报警，取决于条件]]></description>
            <pubDate>Wed, 03 Aug 2011 11:16:46</pubDate>
            <category>光电报警电子电路图</category>
            <author>叶子</author>
            <guid>https://www.elecfans.com/article/88/131/192/2011/20110803208446.html</guid>
        </item><item>
            <title><![CDATA[可编程家庭安全报警系统电路制作详解]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2011/20110617202586.html</link>
            <description><![CDATA[在这个项目中，我们设计的低成本高性能的可编程家庭安全系统采用传感器作为输入几个LDR的。当上述传感器(S)被触发系统可拨打指定的电话号码的用户(使用内置的DTMF发生器)和激活的]]></description>
            <pubDate>Sat, 18 Jun 2011 15:26:18</pubDate>
            <category>光电报警电子电路图</category>
            <author>叶子</author>
            <guid>https://www.elecfans.com/article/88/131/192/2011/20110617202586.html</guid>
        </item><item>
            <title><![CDATA[闪光电子陀螺电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2010/20100225170725.html</link>
            <description><![CDATA[闪光电子陀螺电路图
闪光电子陀螺是一种从古代一直流传到今天的小玩艺。闪光电子陀螺则是现代科技与传统相结合的新颖电子玩具，它既保留了]]></description>
            <pubDate>Thu, 25 Feb 2010 16:31:02</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2010/20100225170725.html</guid>
        </item><item>
            <title><![CDATA[声光电子门铃电路原理图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2010/20100225170724.html</link>
            <description><![CDATA[声光电子门铃电路原理图
声光电子门铃是为家中耳背（听力不好）的老人或聋人特别设计的一款新型电子门铃。图5是声光电子门铃电路原理图。IC]]></description>
            <pubDate>Thu, 25 Feb 2010 16:30:04</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2010/20100225170724.html</guid>
        </item><item>
            <title><![CDATA[圆顶灯调光器电路--Dome Lamp Dimmer]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2010/20100115157911.html</link>
            <description><![CDATA[圆顶灯调光器电路--Dome Lamp Dimmer
There are times when a little light inside the car would greatly assist one of the passengers but the dome light is too bright for sa]]></description>
            <pubDate>Fri, 15 Jan 2010 08:48:47</pubDate>
            <category>光电报警电子电路图</category>
            <author>电子发烧友</author>
            <guid>https://www.elecfans.com/article/88/131/192/2010/20100115157911.html</guid>
        </item><item>
            <title><![CDATA[光控电子鸟电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/20091118108453.html</link>
            <description><![CDATA[光控电子鸟电路图
V1，V2构成互补自激振荡器，利用R，C的充放电模拟鸟儿的鸣叫声。
]]></description>
            <pubDate>Wed, 18 Nov 2009 18:02:56</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/20091118108453.html</guid>
        </item><item>
            <title><![CDATA[邻近报警器Ⅱ]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009100594910.html</link>
            <description><![CDATA[邻近报警器Ⅱ

该电路由一个COMS逻辑门组成,当一个物体接近人线时,]]></description>
            <pubDate>Mon, 05 Oct 2009 15:23:53</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009100594910.html</guid>
        </item><item>
            <title><![CDATA[邻近报警器Ⅰ]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009100594908.html</link>
            <description><![CDATA[邻近报警器Ⅰ
]]></description>
            <pubDate>Mon, 05 Oct 2009 15:19:26</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009100594908.html</guid>
        </item><item>
            <title><![CDATA[使函音响报警器]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009092593548.html</link>
            <description><![CDATA[使函音响报警器

该电路用来防止信纸和便函被漏看，置于导电材料（]]></description>
            <pubDate>Fri, 25 Sep 2009 15:25:22</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009092593548.html</guid>
        </item><item>
            <title><![CDATA[简易光激式报警器]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009092292867.html</link>
            <description><![CDATA[简易光激式报警器

当光束射到硫化器]]></description>
            <pubDate>Tue, 22 Sep 2009 16:00:17</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009092292867.html</guid>
        </item><item>
            <title><![CDATA[采用LPC938的高精度数控直流电流源的方案设计]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009091190690.html</link>
            <description><![CDATA[总体方案选择与设计
方案论证与比较
① 主电路及调整方式的选择
方案一 开关稳压调整
&nbsp;&nbsp;&nbsp; 开关稳压调整方式效率高，普遍应]]></description>
            <pubDate>Fri, 11 Sep 2009 17:37:28</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009091190690.html</guid>
        </item><item>
            <title><![CDATA[防盗报警优秀设计—核桃式防范方案]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009091190689.html</link>
            <description><![CDATA[　　据悉，该豪宅所有窗户及阳台，设计使用20对双光束围墙用红外对射探测器进行防范，貌似严密，其实这种双光束对射探测器光束防范高度仅为20cm，极易被跨越或钻、爬等方]]></description>
            <pubDate>Fri, 11 Sep 2009 17:34:41</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009091190689.html</guid>
        </item><item>
            <title><![CDATA[远距离无线编码报警器电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009070574988.html</link>
            <description><![CDATA[
远距离无线编码报警器电路]]></description>
            <pubDate>Sun, 05 Jul 2009 11:38:47</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009070574988.html</guid>
        </item><item>
            <title><![CDATA[有毒气体报警器电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009070574987.html</link>
            <description><![CDATA[
有毒气体报警器电路]]></description>
            <pubDate>Sun, 05 Jul 2009 11:38:11</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009070574987.html</guid>
        </item><item>
            <title><![CDATA[市电驱动的报警闪光灯电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009070574985.html</link>
            <description><![CDATA[
市电驱动的报警闪光灯电路]]></description>
            <pubDate>Sun, 05 Jul 2009 11:36:13</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009070574985.html</guid>
        </item><item>
            <title><![CDATA[具有语音告警功能的配电保护插座电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009070574984.html</link>
            <description><![CDATA[
具有语音告警功能的配电保护插座电路]]></description>
            <pubDate>Sun, 05 Jul 2009 11:35:33</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009070574984.html</guid>
        </item><item>
            <title><![CDATA[感应式高压语音报警器电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009070574983.html</link>
            <description><![CDATA[
感应式高压语音报警器电路]]></description>
            <pubDate>Sun, 05 Jul 2009 11:34:51</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009070574983.html</guid>
        </item><item>
            <title><![CDATA[防触电语音报警安全帽电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009070574982.html</link>
            <description><![CDATA[防触电语音报警安全帽电路]]></description>
            <pubDate>Sun, 05 Jul 2009 11:33:57</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009070574982.html</guid>
        </item><item>
            <title><![CDATA[电子警犬电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009070574981.html</link>
            <description><![CDATA[
电子警犬电路]]></description>
            <pubDate>Sun, 05 Jul 2009 11:33:09</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009070574981.html</guid>
        </item><item>
            <title><![CDATA[触摸式声音报警器电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009070574978.html</link>
            <description><![CDATA[
触摸式声音报警器电路]]></description>
            <pubDate>Sun, 05 Jul 2009 11:30:33</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009070574978.html</guid>
        </item><item>
            <title><![CDATA[触摸式报警器电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009070574977.html</link>
            <description><![CDATA[
触摸式报警器电路]]></description>
            <pubDate>Sun, 05 Jul 2009 11:29:52</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009070574977.html</guid>
        </item><item>
            <title><![CDATA[QJB气体监控报警器电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009070574976.html</link>
            <description><![CDATA[QJB气体监控报警器电路]]></description>
            <pubDate>Sun, 05 Jul 2009 11:28:55</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009070574976.html</guid>
        </item><item>
            <title><![CDATA[蜂鸣器报警电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009070474930.html</link>
            <description><![CDATA[蜂鸣器报警电路
无触点汽车转弯蜂鸣器电路

具有温度补偿的气敏蜂鸣器电路
]]></description>
            <pubDate>Sat, 04 Jul 2009 16:20:57</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009070474930.html</guid>
        </item><item>
            <title><![CDATA[火焰探测报警器电路]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009060265031.html</link>
            <description><![CDATA[火焰探测报警器电路
图2-16所示为采用光敏电阻为探测元件的火焰探测报警器电路图。PbS光敏电阻的暗电阻的阻值为1MΩ，亮电阻的阻]]></description>
            <pubDate>Tue, 02 Jun 2009 00:20:20</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009060265031.html</guid>
        </item><item>
            <title><![CDATA[转速低限报警器电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009052763736.html</link>
            <description><![CDATA[
转速低限报警器电路图]]></description>
            <pubDate>Wed, 27 May 2009 14:05:23</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009052763736.html</guid>
        </item><item>
            <title><![CDATA[住宅楼智能报警系统种的音响电路图2]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009052763734.html</link>
            <description><![CDATA[
住宅楼智能报警系统种的音响电路图2]]></description>
            <pubDate>Wed, 27 May 2009 14:04:49</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009052763734.html</guid>
        </item><item>
            <title><![CDATA[住宅楼智能报警系统种的音响电路图1]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009052763733.html</link>
            <description><![CDATA[
住宅楼智能报警系统种的音响电路图1]]></description>
            <pubDate>Wed, 27 May 2009 14:04:25</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009052763733.html</guid>
        </item><item>
            <title><![CDATA[轴湿报警器电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009052763732.html</link>
            <description><![CDATA[
轴湿报警器电路图]]></description>
            <pubDate>Wed, 27 May 2009 14:03:55</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009052763732.html</guid>
        </item><item>
            <title><![CDATA[中功率变音调警笛声发生器电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009052763731.html</link>
            <description><![CDATA[
中功率变音调警笛声发生器电路图]]></description>
            <pubDate>Wed, 27 May 2009 14:03:32</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009052763731.html</guid>
        </item><item>
            <title><![CDATA[有毒有害气体报警器电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009052763730.html</link>
            <description><![CDATA[
有毒有害气体报警器电路图]]></description>
            <pubDate>Wed, 27 May 2009 14:03:11</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009052763730.html</guid>
        </item><item>
            <title><![CDATA[液位监控报警电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/192/2009/2009052763729.html</link>
            <description><![CDATA[
液位监控报警电路图]]></description>
            <pubDate>Wed, 27 May 2009 14:02:47</pubDate>
            <category>光电报警电子电路图</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/192/2009/2009052763729.html</guid>
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