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<p style="white-space: normal;"><br /></p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">彩超设备是一种极为先进的诊断系统，其采用的大量的科学技术，例如核磁共振技术、Pureware纯净波探头技术及组织差异校正技术等;</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">一般彩超系统包括以下几个部分：探头、前段信号采集部分、电源模块控制部分、信号图像处理部分及输出显示部分。</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">下面分享下彩超常见故障案例及维修处理：</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box;font-weight: 700;">一：故障最多的是电源电路</span></p><p style="text-align: center;margin-top: 10px;margin-bottom: 10px;"><img class="rich_pages js_insertlocalimg" data-backh="433" data-backw="578" data-ratio="0.7496251874062968" data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdk36fSTBu3DKSPKfJvRQreKYl2pTzphUruCPOHUcP5cickHh6R43FBTAuTE5ia3peJyqbyia3X7jJBQ/640?wx_fmt=jpeg" style="width: 100%;height: auto;" data-w="667" /></p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">电源电路主要有串联型和开关型两类，基本由振荡，变压、整流、滤波、稳压等部分组成。作用是将交流电转换成稳定的交流和直流电压，给机器提供能量。电源电路的工作电流较大，发热量大，所以故障率高。如整流桥、稳压块等，当负载过重(即电流过大)，电网电压过高和温度过高(如散热不良)时，都可能造成这些元件的损坏。所以要加装交流稳压器来稳定电源电压;安装空调机来降低室内温度和定期清除机器内部的灰尘等等。采取这些措施是完全可以减少电源部分损坏的可能的，同时亦可大大减少机器的故障率。</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;"><span style="background-color: rgb(255, 255, 255);">电源电路的检修主要就是检查和修理这些部件，懂了电源电路的原理和作用，那么不</span>管<span style="background-color: rgb(255, 255, 255);">是进口机器还是国产机器，修理思路和方法也都一样，其实和修理其他电器，如电视机，电脑等的方法的思路都很相似。许多损坏的进口机器，用国产元件代替也能收到理想的效果。</span></p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box;font-weight: 700;">二：修理显示部分和修理电脑很相似</span></p><p style="text-align: center;margin-top: 10px;margin-bottom: 10px;"><img class="rich_pages js_insertlocalimg" data-backh="386" data-backw="578" data-ratio="0.6671664167916042" data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdk36fSTBu3DKSPKfJvRQreuKIFjQIjGqicXjWoHicwibJgOzgeJzGiaduFVnhwBahibXckEaWB9m2Xr3A/640?wx_fmt=jpeg" style="width: 100%;height: auto;" data-w="667" /></p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">彩超的显示部分其实就是一台电脑，专用的罢了：有主机、监视器和照相监视器。</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">监视器由视频放大，扫描和显示等几大部分组成，它将高分辨地显示出来自主机的超声图像，我们通过实践感到监视器的故障多出现在扫描部分，其中以行扫描的故障率为最高，与电源部分类似，行扫描部分正常工作时就是在高电压和大电流的状态下，它几乎消耗了整个监视器一半以上的电能，在正常工作时就有一系列的发热元件，如:行输出管、行输出变压器和行校正线圈等，当散热不良时，就可以造成这些元件因过热而损坏或使线路板开焊。</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">曾修有几台EUB200型彩超，主机工作正常，监视器无光，只有一条垂直亮线，经反复检查发现行扫描的行校正线圈因高热脱焊，重新焊接后故障排除，从中可以看出温度过高可引起彩超多处发生故障，所以通风与降温对B来说是非常重要的，这样可防患于未然，更好的保证机器正常工作。可以看出对这部分的维修和电脑的维修非常相似。</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box;font-weight: 700;">三：键盘故障</span></p><p style="white-space: normal;text-align: center;margin-top: 10px;margin-bottom: 10px;"><img class="rich_pages js_insertlocalimg" data-backh="386" data-backw="578" data-ratio="0.6671664167916042" data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdk36fSTBu3DKSPKfJvRQretE8lMia9CXOPJhtHe2Kx0EzQjAcYTyhiannN9yic2z3qfZY3VqNdYzJdQ/640?wx_fmt=jpeg" style="width: 100%;height: auto;" data-w="667" /></p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">其实彩超的键盘和电脑的也基本上相同：维修思路和方法也和修电脑键盘基本相同。也是由多种功能键和数字字母键组成，它是彩超操作最多的部分，由于机器的生产厂家和型号不同，键盘也略有所异，但大致可分为两种:一种是由独立的按钮开关组成的;一种是整体的触摸式按键，一般说来后者为近期产品。键盘最典型的故障就是接触不良，多数接触不良是由灰尘、触点氧化或触摸开关中的导电橡胶损坏所致，但以灰尘引起的接触不良为最多见。</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;"><span style="background-color: rgb(255, 255, 255);">有一台迈瑞彩超DC-N2S，故障现象是监视器显示正常，但屏幕上无回声图像，键盘控制失灵。检查主机发现故障，打开键盘后发现键盘内灰尘过多，认真清洁后机器恢复正常。此例充分说明彩超的防尘工作是十分重要的。彩超安放的标准条件是，有空调设备、</span>干<span style="background-color: rgb(255, 255, 255);">燥、通风、洁净的房间里，即使这样彩超还要定期清灰保养(每年至少1一2次)，这将可以大大减少彩超键盘和其它部分的故障。</span></p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box;font-weight: 700;">四：彩超探头</span></p><p style="box-sizing: border-box;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);margin-top: 10px;margin-bottom: 10px;"><span style="box-sizing: border-box;font-weight: 700;"><img class="rich_pages js_insertlocalimg" data-backh="386" data-backw="578" data-ratio="0.6671664167916042" data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdk36fSTBu3DKSPKfJvRQreYm7JHOZuFm0e3L2kSNLlAr3TRxrQWflVGdTWEv6rvDHGunNB9AOcog/640?wx_fmt=jpeg" style="text-align: center;white-space: normal;width: 100%;height: auto;" data-w="667" /></span></p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">彩超探头是彩超独有部件，其故障有独特性，但也不复杂。</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">通常用的彩超探头有线阵探头和机械扇扫探头。其中机械扇扫探头故障较多，常见故障为扇扫探头内有气泡，处理方法是:排气、灌油，在有关书中叙述过处理方法，这里不再重复，另一常见故障是扇扫探头不转，通常是探头本身驱动电机损坏，这时处理比较麻烦，需把探头锯开。</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box;font-weight: 700;">五：机器受振动引起的故障</span></p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">医用彩超是一台很复杂的电子仪器，其中有很多插板、插件、接线等。当受到较大振动时，这些插件有可能松动造成接触不良，使整机或机器的部分功能不能正常工作。有一次，我们修过一台All)-DA-SSD一630。复合机，该机连续多普勒不工作.其它功能正常。开机检查未发现故障，重新清理插件后，机器工作正常。此例告诉我们在移动彩超时一定要尽量少其振动，平时彩超的脚轮的锁开关一定要锁住，以免机器滑动与其它物体碰撞。综上所述，我们可以看出彩超的故障千变万化，有时使人眼花缭乱无从下手，但彩超维修工作也有它的技术性、科学性和规律性，只要认真分析、细致查找，再复杂的故障也能排除。但如稍有疏忽，就会多走弯路，甚至造成更多的损失。</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box;font-weight: 700;">维修小结</span></p><p style="text-align: center;margin-top: 10px;margin-bottom: 10px;"><img class="rich_pages" data-backh="468" data-backw="578" data-ratio="0.8111111111111111" data-s="300,640" data-type="jpeg" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdk36fSTBu3DKSPKfJvRQredgEq8CqLJcBhOiaibJVbf5sibic8WRBfOj6X0ic6wDuUtiaM1CRQgcib6eq3g/640?wx_fmt=jpeg" style="width: 100%;height: auto;" data-w="1080" /></p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">维修这种高、精、尖的彩超切勿盲目动手，在检修时必须严格遵守如下事项：</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">1、彩超结构复杂，维修难度大，所以拆卸时必须慎重，不可蛮干，要做好详细记录和标记，切勿接错。</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">2、检修者一定要看好电路图和方框图，根据故障现象分析电路，确定故障范围，千万不能让一知半解的人乱拆乱卸，以免扩大故障范围。</p><p style="box-sizing: border-box;margin-bottom: 18px;overflow-wrap: break-word;color: rgb(85, 85, 85);font-family: "Microsoft Yahei";font-size: 15px;text-align: start;white-space: normal;background-color: rgb(255, 255, 255);">3、彩超中的集成电路多数是由CMOS电路构成，此种电路较易被人体或机壳感应的静电击穿，故检修时仪器或工具必须可靠接地，特别是电烙铁的外壳一定要接地;</p><section style="white-space: normal;text-align: center;"><span style="font-size: 12px;background-color: rgb(255, 255, 255);font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", " ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;widows: 1;">-end-</span><br /></section><p style="font-variant-numeric: normal;font-variant-east-asian: normal;white-space: normal;max-width: 100%;min-height: 1em;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;widows: 1;font-size: 16px;text-align: left;background-color: rgb(255, 255, 255);box-sizing: border-box !important;overflow-wrap: break-word !important;"><br /></p><p style="font-variant-numeric: normal;font-variant-east-asian: normal;white-space: normal;max-width: 100%;min-height: 1em;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;widows: 1;font-size: 16px;text-align: left;background-color: rgb(255, 255, 255);box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="max-width: 100%;font-size: 12px;box-sizing: border-box !important;overflow-wrap: break-word !important;">来源：仁成医疗</span></p><p style="font-variant-numeric: normal;font-variant-east-asian: normal;white-space: normal;max-width: 100%;min-height: 1em;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;widows: 1;font-size: 16px;text-align: left;background-color: rgb(255, 255, 255);box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="max-width: 100%;font-size: 12px;box-sizing: border-box !important;overflow-wrap: break-word !important;">图片来源：网络</span></p><p style="font-variant-numeric: normal;font-variant-east-asian: normal;white-space: normal;max-width: 100%;min-height: 1em;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "ingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;widows: 1;font-size: 16px;text-align: left;background-color: rgb(255, 255, 255);box-sizing: border-box 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发表于 2020-10-20 12:15:22