好学医电在线

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<section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><section><svg viewbox="0 0 1 1"></svg></section></section><section><section powered-by="gulangu"><p><strong>明日复明日，明日何其多。</strong></p></section><section powered-by="gulangu"><p>○</p></section><section powered-by="gulangu"><p><strong>无畏的太阳</strong></p></section><section powered-by="gulangu"><p>○</p></section><section powered-by="gulangu"><p><span>医疗|学习|钻研|电子电路|原理</span><br  /></p></section></section><section><section><svg viewbox="0 0 1 1"></svg></section></section></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><p><img src="image/20201019/139f84baa45da7b2324972b33b89e564_1.jpg" /></p></section></section><section powered-by="gulangu"><p><strong>欢迎关注</strong></p></section></section><section><section powered-by="gulangu"><section><p><img src="image/20201019/ecfabb3a4bc2731ecc96e8e0685fb2ae_2.png" /></p></section></section><section powered-by="gulangu"><p><strong>好学医电在线</strong></p></section></section></section><section powered-by="gulangu"><p><strong>请留下你指尖的温度</strong></p><p><strong>让太阳拥抱你</strong></p><p><strong>记得这是一个有温度的公众号</strong></p></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><br  /></section></section></section><section><section powered-by="gulangu"><section><section><br  /></section></section></section></section><section><section powered-by="gulangu"><section><p><strong></strong></p><p>全自动生化分析仪（ZY-1200）</p><p><strong><span>&nbsp;</span></strong><br  /></p><p><br  /></p></section></section></section></section></section><section powered-by="gulangu"><section><section><section powered-by="gulangu"><section><br  /></section></section></section></section></section></section><section><section powered-by="gulangu"><section><br  /></section></section></section></section></section><section powered-by="gulangu"><p><br  /></p></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><br  /></section></section></section><section><section powered-by="gulangu"><section><p><strong>故障现象</strong></p></section></section></section></section><section powered-by="gulangu"><p><strong><span>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</span></strong></p><p><strong><span>&nbsp; &nbsp; &nbsp;设备做出来的被测样品的测定的数值不准确（2组波长对应的值偏低），同时能看到报警“灯泡能量异常”</span></strong><strong><span>。</span></strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/139c748b9a89be7c5e55351f920ccf65_3.png" /></p></section></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><br  /></section></section></section><section><section powered-by="gulangu"><section><p><strong>分析过程</strong></p></section></section></section></section><section powered-by="gulangu"><p><span><strong>一、<span>原理</span></strong></span></p><p><strong></strong></p><p><strong><span>&nbsp; &nbsp;&nbsp;这台全自动生化分析仪的光路系统大致由：灯泡（光源）、聚光镜、准直镜、光栅、狭缝、滤光片、检测器（一列发光二极管）组成。</span></strong></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/f790655d166af1158ed65e14261e12ca_4.png" /></p></section></section><section powered-by="gulangu"><section><p><img src="image/20201019/6d039099fee2bb71c2181c5a5a9f4c59_5.png" /></p></section></section><section powered-by="gulangu"><p><strong>&nbsp; &nbsp; 各个环节联系起来大致光线的传输过程就是：灯泡（12V，20W放置在散热片里面）发射出来的复合光，通过聚光镜将光线聚集到一起（最大化的利用光源能量），经准直镜将入射光变成平行的光，再经狭缝（避免杂光进来），入射到光栅，由光栅将复合光分解成多种单色光，反射到滤光片上（吸收各个单色光）再给检测器（一列发光二极管）进行光电转换，最后经信号处理板子，分析，计算，放大等，出来的信号传送到显示屏。</strong></p></section><section powered-by="gulangu"><p><strong>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</strong><strong>二、<span>分析</span></strong></p><p><strong>&nbsp; &nbsp; &nbsp;&nbsp;</strong></p><p><strong><span>&nbsp; &nbsp; &nbsp; 1、“根据灯泡能量异常”这条报警信息，可以马上想到灯泡可能年限已久，需要更换灯泡。</span></strong></p><p><strong><span>&nbsp; &nbsp; &nbsp; 但是考虑到全自动生化分析仪是比较大型的精密仪器。</span></strong></p><p><strong><span>&nbsp; &nbsp; &nbsp; 于是从厂家那边了解到，更换完灯泡前，要点击维护→更换灯泡，进入维护界面，界面显示16个波长的值（340-800），可以从这里看到更换完灯泡后值的偏差，一般新设备值要在1.0以上，旧的设备0.7以上也可以。&nbsp;</span></strong></p><p><strong><span>&nbsp; &nbsp; &nbsp; 按照这个方法更换完灯泡发现340跟578 这2个波长的值不对，波长340对应值0.36，波长578对应值0.5，均低于上面提到的标准值0.7，点击上面的报警选项依旧看到“灯泡能量异常”的报警，因此判定灯泡没坏。</span></strong></p><p><strong><span>&nbsp; &nbsp; &nbsp; 怀疑设备并没有问题，可能只是因为水质原因，或者是比色杯没有清洗干净，导致光源被削弱，引起的报警。</span></strong></p><p><strong><span>&nbsp; &nbsp; &nbsp; 重新换完纯净水，拿来新的清洗过的比色杯，再点开灯泡维护界面，发现故障依旧。</span></strong></p><p><strong><span>&nbsp; &nbsp; &nbsp; 现在将问题锁定在光路系统的各个环节。</span></strong></p><p><strong></strong><span>&nbsp;<strong>2、因为前面故障现象是只有2个波长的值不对，其他14个波长均正 常。</strong></span></p><p><span><strong>&nbsp; &nbsp; &nbsp; 说明只是局部出现异常，能引起局部异常的只有一个那就是滤光片，因为它吸收单色光，是由一块一块组成的，有可能就是其中一块出现问题，导致的局部异常。</strong></span></p><p><span><strong>&nbsp; &nbsp; &nbsp; 其它部件如果出问题，全部波长都要出问题，因此断定是滤光片损坏。</strong></span></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/15c6ec1654f317c4098ac82fd9622658_6.png" /></p></section></section><section powered-by="gulangu"><p><strong></strong></p><p><strong>&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</strong></p></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><br  /></section></section></section><section><section powered-by="gulangu"><section><p><strong>解决方法</strong></p></section></section></section></section><section powered-by="gulangu"><p><span><strong>&nbsp; &nbsp; &nbsp; 拆开设备上面的外壳，能直接看到整个光路系统，将暗盒上面的盖子拆下来，可以看到滤光片，旋掉底部2个十字螺丝，取出滤光片，发现滤光片上面有白色的结晶块，表面略为模糊，用棉签处理掉白色结晶块，最后用酒精擦拭完后，发现表面依旧显得很旧，很模糊，已经断定无法修复。更换新的滤光片已经修复。</strong></span></p></section><section powered-by="gulangu"><section><p><img src="image/20201019/9ab230a10b148dadb7bc010eeff9324b_7.png" /></p></section></section><section powered-by="gulangu"><p><br  /></p></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><p>欢</p></section></section></section><section><section powered-by="gulangu"><section><p>迎</p></section></section></section><section><section powered-by="gulangu"><section><p>关</p></section></section></section><section><section powered-by="gulangu"><section><p>注</p></section></section></section></section><section powered-by="gulangu"><p><br  /></p></section><section powered-by="gulangu"><section><section powered-by="gulangu"><section><p><img src="image/20201019/139f84baa45da7b2324972b33b89e564_1.jpg" /></p></section></section></section><section><section powered-by="gulangu"><section><section></section></section></section></section><section><section powered-by="gulangu"><p>好学医电在线</p><p>和他的朋友们</p></section></section></section><section powered-by="gulangu"><section><section><svg viewbox="0 0 1 1"></svg></section></section><section><section><svg viewbox="0 0 1 1"></svg></section></section></section></section>