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            <title><![CDATA[稳压二极管稳压值测量电路]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2020/202004171206149.html</link>
            <description><![CDATA[变压器可用收音机用的音频变压器代用，交流输出约为130V，SW1限流转换开关接22K电阻电流约为1mA，SW1开关接10K电阻电流约为2mA。电路可测量最大值145V的稳压二极管稳压值。]]></description>
            <pubDate>Fri, 17 Apr 2020 16:51:51</pubDate>
            <category>光电测量电路</category>
            <author>网络整理</author>
            <guid>https://www.elecfans.com/article/88/131/test/2020/202004171206149.html</guid>
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            <title><![CDATA[光电耦合器测试电路图大全（光敏晶体管/驱动管/发光二极管）]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2018/20180327652789.html</link>
            <description><![CDATA[本文主要介绍了光电耦合器测试电路图大全（光敏晶体管/驱动管/发光二极管）。光电耦合器运用广泛，依据光电耦合器特性，设计一个方便的测试光电耦合器电路，该电路简单、准确，使用方便。电路原理：当电源接通后，LED不发光。按下S2，LED会发光。调RP，LED的发光强度会发生变化，说明光电耦合器是好的。印刷电路板图如下图，电池采用3V纽扣电池，电池安装在印刷板的铜箔面，用铜片扣住并焊稳即可。]]></description>
            <pubDate>Tue, 27 Mar 2018 09:13:14</pubDate>
            <category>光电测量电路</category>
            <author></author>
            <guid>https://www.elecfans.com/article/88/131/test/2018/20180327652789.html</guid>
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            <title><![CDATA[光电脉搏检测电路图大全（四款模拟电路设计原理图详解）]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2018/20180206630918.html</link>
            <description><![CDATA[本文主要介绍了光电脉搏检测电路图大全（四款模拟电路设计原理图详解）。光电脉搏测量原理，从光源发出的红外光一部分被手指组织吸收，一部分透射出来;红外接收管在光源的对称位置，检测到的透射光，反映出心律跳动情况。由于手指动脉在血液循环过程中呈周期性的脉动变化，红外接收三极管输出信号也是周期性脉动的变化。该信号经放大、滤波、整形后输出，单片机电路对输入的脉冲信号进行计算处理后把结果送到LCD1602显示。]]></description>
            <pubDate>Sun, 25 Mar 2018 15:31:00</pubDate>
            <category>光电测量电路</category>
            <author></author>
            <guid>https://www.elecfans.com/article/88/131/test/2018/20180206630918.html</guid>
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            <title><![CDATA[光伏式光电检测电路图大全（四款模拟电路设计原理图详解）]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2018/20180206630867.html</link>
            <description><![CDATA[本文主要介绍了光伏式光电检测电路图大全（四款模拟电路设计原理图详解）。光电探测器所接收到的信号一般都非常微弱，而且光探测器输出的信号往往被深埋在噪声之中，因此，要对这样的微弱信号进行处理，一般都要先进行预处理，以将大部分噪声滤除掉，并将微弱信号放大到后续处理器所要求的电压幅度。这样，就需要通过前置放大电路、滤波电路和主放大电路来输出幅度合适、并已滤除掉大部分噪声的待检测信号。]]></description>
            <pubDate>Sun, 25 Mar 2018 14:48:00</pubDate>
            <category>光电测量电路</category>
            <author></author>
            <guid>https://www.elecfans.com/article/88/131/test/2018/20180206630867.html</guid>
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            <title><![CDATA[实用印制板短路检测器电路]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2012/20120705278845.html</link>
            <description><![CDATA[在制作印制板的过程中，印制腐蚀工艺完成后，会遇到一些问题，如、铜泊条之间不该连结的地方被连接了(搭桥)，即出现了短路故障。这里介绍一种印制板短路检测器电路，用它可以检]]></description>
            <pubDate>Thu, 05 Jul 2012 14:29:43</pubDate>
            <category>光电测量电路</category>
            <author>灰色天空</author>
            <guid>https://www.elecfans.com/article/88/131/test/2012/20120705278845.html</guid>
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            <title><![CDATA[光电检测电路实现远程唤醒和关闭]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2012/20120607275550.html</link>
            <description><![CDATA[本文设计一款实用电路，在有网络布线或者互相有直接接线的地方，都可以安装这种控制电路。在主机和被控的一台或几台设备中实现同步工作，完成远程唤醒和关闭。]]></description>
            <pubDate>Thu, 07 Jun 2012 11:44:08</pubDate>
            <category>光电测量电路</category>
            <author>灰色天空</author>
            <guid>https://www.elecfans.com/article/88/131/test/2012/20120607275550.html</guid>
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            <title><![CDATA[环境光检测及恒流源电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2012/20120314263703.html</link>
            <description><![CDATA[光敏电阻是利用半导体的光电效应制成的一种电阻值随入射光的强度变化而改变的电阻器，入射光强时电阻值减小。]]></description>
            <pubDate>Wed, 14 Mar 2012 11:17:46</pubDate>
            <category>光电测量电路</category>
            <author>秩名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2012/20120314263703.html</guid>
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            <title><![CDATA[物体定位检测电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2012/20120314263702.html</link>
            <description><![CDATA[信号探测采用被动式双元热释电红外传感器P2288，并在其表面罩上一个菲涅耳透镜用来提高其探测灵敏度。]]></description>
            <pubDate>Wed, 14 Mar 2012 11:14:08</pubDate>
            <category>光电测量电路</category>
            <author>秩名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2012/20120314263702.html</guid>
        </item><item>
            <title><![CDATA[简单易制的点火器检测仪]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2012/20120209259642.html</link>
            <description><![CDATA[通过实践证明，可以利用废旧燃气点火器的振荡部分(新的也就几元钱)进行改造，做一个简易测量仪器。这种仪器制作容易，使用方便可靠，做个外壳，体积小、重量轻、携带方便。下面]]></description>
            <pubDate>Thu, 09 Feb 2012 11:05:30</pubDate>
            <category>光电测量电路</category>
            <author>灰色天空</author>
            <guid>https://www.elecfans.com/article/88/131/test/2012/20120209259642.html</guid>
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            <title><![CDATA[简单电感测量装置电路]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2011/20110519198950.html</link>
            <description><![CDATA[该电路以谐振方法测量电感值，测量下限可达10nH，测量范围很宽，能满足正常情况下的电感量测量，电路结构简单，工作可靠稳定，适合于爱好者制作。]]></description>
            <pubDate>Thu, 19 May 2011 11:01:12</pubDate>
            <category>光电测量电路</category>
            <author>summao</author>
            <guid>https://www.elecfans.com/article/88/131/test/2011/20110519198950.html</guid>
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            <title><![CDATA[遥控接收头测试电路]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2011/20110506197469.html</link>
            <description><![CDATA[遥控接收头测试电路]]></description>
            <pubDate>Fri, 06 May 2011 17:52:18</pubDate>
            <category>光电测量电路</category>
            <author>summao</author>
            <guid>https://www.elecfans.com/article/88/131/test/2011/20110506197469.html</guid>
        </item><item>
            <title><![CDATA[照相光度计电路]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2011/20110503197054.html</link>
            <description><![CDATA[照相光度计电路由3dg6等元件构成。]]></description>
            <pubDate>Tue, 03 May 2011 11:39:48</pubDate>
            <category>光电测量电路</category>
            <author>summao</author>
            <guid>https://www.elecfans.com/article/88/131/test/2011/20110503197054.html</guid>
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            <title><![CDATA[超声波物体检测电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2011/20110129186298.html</link>
            <description><![CDATA[工作时，发送部分和接收部分同时进行，将SPKRl和SPKR2同方向对准检测目标，彼此相距约为0.3米。若目标不动，则收到的超声频率与发送频率相同，FM输出为零，M1无读数]]></description>
            <pubDate>Sat, 29 Jan 2011 18:31:08</pubDate>
            <category>光电测量电路</category>
            <author>电子发烧友</author>
            <guid>https://www.elecfans.com/article/88/131/test/2011/20110129186298.html</guid>
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            <title><![CDATA[F3S05内测光集成电路的应用电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2010/20101021224962.html</link>
            <description><![CDATA[F3S05是一块照相机专用的内测光集成电路,它的内部包括稳压,时间延迟,测光,温度]]></description>
            <pubDate>Thu, 21 Oct 2010 15:15:39</pubDate>
            <category>光电测量电路</category>
            <author>nana</author>
            <guid>https://www.elecfans.com/article/88/131/test/2010/20101021224962.html</guid>
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            <title><![CDATA[FS-2电测光集成电路的应用电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2010/20101021224961.html</link>
            <description><![CDATA[FS-2电测光电路与本网站介绍的ZH-3具有相同的功能,以光敏电阻为光-电转换元件,]]></description>
            <pubDate>Thu, 21 Oct 2010 15:09:02</pubDate>
            <category>光电测量电路</category>
            <author>nana</author>
            <guid>https://www.elecfans.com/article/88/131/test/2010/20101021224961.html</guid>
        </item><item>
            <title><![CDATA[ZH-3照相机集成电路的应用电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2010/20101021224960.html</link>
            <description><![CDATA[ZH-3是一块主要用于照相机,曝光表及光度计等作电测光用的集成电路.它包含了输]]></description>
            <pubDate>Thu, 21 Oct 2010 15:02:28</pubDate>
            <category>光电测量电路</category>
            <author>nana</author>
            <guid>https://www.elecfans.com/article/88/131/test/2010/20101021224960.html</guid>
        </item><item>
            <title><![CDATA[光电检测电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2010/20100809221497.html</link>
            <description><![CDATA[图为光电检测电路。该检测电路是由放大器A，反馈电阻RF和CF组成，其输出电压为u1=SPRF，其中，S为光电二极管的灵敏度，P为入射光功率。在检测弱光信号时，RF为提高增益，RF的]]></description>
            <pubDate>Mon, 09 Aug 2010 10:28:13</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2010/20100809221497.html</guid>
        </item><item>
            <title><![CDATA[光电检测电路原理图]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2010/20100731221156.html</link>
            <description><![CDATA[为方便表示，电路中的R2、R3即为前面等效电路模型中的RT、RF。前级部分由光电转换二极管与前级放大器组成，这也是光电检测电路的核心部分，其器件选用高性能低噪声运算放大器]]></description>
            <pubDate>Sat, 31 Jul 2010 09:49:16</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2010/20100731221156.html</guid>
        </item><item>
            <title><![CDATA[同心式光敏二极管典型应用电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2010/20100401213940.html</link>
            <description><![CDATA[同心式光敏二极管典型应用电路图
]]></description>
            <pubDate>Thu, 01 Apr 2010 09:13:03</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2010/20100401213940.html</guid>
        </item><item>
            <title><![CDATA[四象限式光敏二极管及其典型应用电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2010/20100401213939.html</link>
            <description><![CDATA[四象限式光敏二极管及其典型应用电路图
]]></description>
            <pubDate>Thu, 01 Apr 2010 09:11:17</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2010/20100401213939.html</guid>
        </item><item>
            <title><![CDATA[光敏二极管光控多功能触发器电路图]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2010/20100331213909.html</link>
            <description><![CDATA[光敏二极管光控多功能触发器电路图
]]></description>
            <pubDate>Wed, 31 Mar 2010 18:01:19</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2010/20100331213909.html</guid>
        </item><item>
            <title><![CDATA[耐压测试器的工作原理]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2009/20091227148607.html</link>
            <description><![CDATA[耐压测试器的工作原理
工作原理：测量电路如图1所示。变压器T的6V经D5整流、C3滤波后，提供调整管Q的基极电压。调整W可控制Q的导通程度。]]></description>
            <pubDate>Sun, 27 Dec 2009 16:53:50</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2009/20091227148607.html</guid>
        </item><item>
            <title><![CDATA[光线方向鉴别器]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2009/2009092894172.html</link>
            <description><![CDATA[光线方向鉴别器
]]></description>
            <pubDate>Mon, 28 Sep 2009 15:38:14</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2009/2009092894172.html</guid>
        </item><item>
            <title><![CDATA[光邻近检测器]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2009/2009092894164.html</link>
            <description><![CDATA[光邻近检测器

反射绝缘体(A)通过物体反射光检测到物体，当物体离]]></description>
            <pubDate>Mon, 28 Sep 2009 15:16:06</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2009/2009092894164.html</guid>
        </item><item>
            <title><![CDATA[语音模仿器（续）]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2009/2009092593440.html</link>
            <description><![CDATA[语音模仿器（续）
]]></description>
            <pubDate>Fri, 25 Sep 2009 10:13:16</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2009/2009092593440.html</guid>
        </item><item>
            <title><![CDATA[语音模仿器]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2009/2009092593438.html</link>
            <description><![CDATA[语音模仿器

语音模仿器的整个电路原理图如图所示，话筒MIC1拾取]]></description>
            <pubDate>Fri, 25 Sep 2009 10:11:22</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2009/2009092593438.html</guid>
        </item><item>
            <title><![CDATA[齐纳二极管测试仪]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2009/2009092493340.html</link>
            <description><![CDATA[齐纳二极管测试仪

这个多]]></description>
            <pubDate>Thu, 24 Sep 2009 15:14:44</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2009/2009092493340.html</guid>
        </item><item>
            <title><![CDATA[音频电表电路]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2009/2009092493338.html</link>
            <description><![CDATA[音频电表电路

这个简单的]]></description>
            <pubDate>Thu, 24 Sep 2009 15:08:51</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2009/2009092493338.html</guid>
        </item><item>
            <title><![CDATA[电源电压监测器]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2009/2009092493334.html</link>
            <description><![CDATA[电源电压监测器

&nbsp;
电压过压将引起U1振荡，使指示灯LED1]]></description>
            <pubDate>Thu, 24 Sep 2009 15:02:11</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2009/2009092493334.html</guid>
        </item><item>
            <title><![CDATA[运算放大器真流补偿漂移测试电路]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2009/2009092493321.html</link>
            <description><![CDATA[运算放大器真流补偿漂移测试电路
]]></description>
            <pubDate>Thu, 24 Sep 2009 14:49:56</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2009/2009092493321.html</guid>
        </item><item>
            <title><![CDATA[结型场效应晶体管（JFET）电压表]]></title>
            <link>https://www.elecfans.com/article/88/131/test/2009/2009092493316.html</link>
            <description><![CDATA[结型场效应晶体管（JFET）电压表

这个非常简单的]]></description>
            <pubDate>Thu, 24 Sep 2009 14:45:47</pubDate>
            <category>光电测量电路</category>
            <author>佚名</author>
            <guid>https://www.elecfans.com/article/88/131/test/2009/2009092493316.html</guid>
        </item><item>
            <title><![CDATA[交流插座测试器]]></title>
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]]></description>
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该消]]></description>
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&nbsp;
该]]></description>
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如果]]></description>
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            <title><![CDATA[简单的短路检测器]]></title>
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            <pubDate>Thu, 24 Sep 2009 12:06:58</pubDate>
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该电子压力计适用一个惠登斯电桥力]]></description>
            <pubDate>Thu, 24 Sep 2009 12:04:03</pubDate>
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            <title><![CDATA[线电压-万用表适配器]]></title>
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&nbsp;
这个交流线-万用表]]></description>
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            <title><![CDATA[1KHz的谐波失真测量表]]></title>
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&nbsp;
该电路用于测量失真，它将1KHz]]></description>
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            <title><![CDATA[LED扩展刻度的电压表]]></title>
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一个10V的齐纳]]></description>
            <pubDate>Thu, 24 Sep 2009 11:39:02</pubDate>
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            <title><![CDATA[用于通讯接收机的S表]]></title>
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]]></description>
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            <category>光电测量电路</category>
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            <title><![CDATA[PC机的DVM适配器]]></title>
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该]]></description>
            <pubDate>Thu, 24 Sep 2009 11:28:45</pubDate>
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这个电路适用于音频、视频和频率较低的射频]]></description>
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            <title><![CDATA[高阻抗电压表]]></title>
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            <pubDate>Thu, 24 Sep 2009 11:19:04</pubDate>
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            <title><![CDATA[模拟频率表]]></title>
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&nbsp;
这个1KHZ的线性刻度模拟频率表电路，使用]]></description>
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这个1KHZ的线性刻度模拟频率表电路，适用]]></description>
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            <title><![CDATA[单片集成电路电容测试仪]]></title>
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这个电路可用于匹配]]></description>
            <pubDate>Wed, 23 Sep 2009 16:42:41</pubDate>
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            <title><![CDATA[50MHZ射频（RF）电桥]]></title>
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图中所示电桥用来测量50MHz业余]]></description>
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