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<p style="white-space: normal;"><img class="rich_pages js_insertlocalimg" data-backh="253" data-backw="578" data-ratio="0.43859649122807015" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_gif/dx3KibwtDhvd30KriaSbvhoncZUg9ZbETjscR1rN5dSCfznIuBFJJWmiauFOFKJq6LKLDom0CYRBzWtBO9Qp0jHhw/640?wx_fmt=gif" data-type="gif" data-w="798" style="text-align: center;width: 100%;height: auto;" /><br /></p><p><br /></p><p><strong><span style="font-size: 15px;color: rgb(0, 92, 173);"><img class="rich_pages js_insertlocalimg" data-backh="500" data-backw="500" data-ratio="1" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_png/dx3KibwtDhvdtQEmazticnFkAProYegG6Vv2miaG6cyI3IsIHLMeiaiazY5SMPSiaczCaegn5IAVLavHKRlZicEc3o3Zw/640?wx_fmt=png" data-type="png" data-w="500" style="text-align: center;white-space: normal;width: 100%;height: auto;" /></span></strong></p><p style="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;white-space: normal;background-color: rgb(255, 255, 255);box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="max-width: 100%;color: rgb(0, 92, 173);box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="max-width: 100%;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;overflow-wrap: break-word !important;">机器类型：飞利浦彩色超声多普勒诊断仪</span></strong></span></p><p style="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;white-space: normal;background-color: rgb(255, 255, 255);box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="max-width: 100%;color: rgb(0, 92, 173);box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="max-width: 100%;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;overflow-wrap: break-word !important;">机器型号：PHILIPS HD15</span></strong></span></p><p style="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;white-space: normal;background-color: rgb(255, 255, 255);box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="max-width: 100%;color: rgb(0, 92, 173);box-sizing: border-box !important;overflow-wrap: break-word !important;"><strong style="max-width: 100%;box-sizing: border-box !important;overflow-wrap: break-word !important;"><span style="max-width: 100%;font-size: 15px;box-sizing: border-box !important;overflow-wrap: break-word !important;"><br /></span></strong></span></p><p style="margin-bottom: 10px;margin-top: 5px;"><strong><span style="font-size: 15px;color: rgb(0, 92, 173);">一、故障现象：</span></strong><span style="font-size: 15px;"><br style="color: rgb(102, 102, 102);font-family: "Microsoft YaHei";font-size: 13px;text-align: start;white-space: normal;background-color: rgb(247, 247, 247);" />机器启动正常，但进入超声二维界面后没有回声，不能成像。</span></p><section style="margin-bottom: 10px;margin-top: 10px;"><span style="font-size: 15px;"><img class="rich_pages js_insertlocalimg" data-backh="189" data-backw="568" data-ratio="0.33274647887323944" data-s="300,640" src="http://mmbiz.qpic.cn/mmbiz_jpg/dx3KibwtDhvdtQEmazticnFkAProYegG6VILcXVPia7TY4sMicSDAjXVQfjghO9GSyOaDBvA95jvh4YFHJ2Ud1j9PQ/640?wx_fmt=jpeg" data-type="jpeg" data-w="568" style="text-align: center;white-space: normal;width: 100%;height: auto;" /></span></section><p><span style="font-size: 15px;"></span><span style="font-size: 15px;color: rgb(0, 92, 173);"><strong>二、故障分析：</strong></span><span style="font-size: 15px;"><br style="color: rgb(102, 102, 102);font-family: "Microsoft YaHei";font-size: 13px;text-align: start;white-space: normal;background-color: rgb(247, 247, 247);" />现场观察探头回声区域仅在近场有微弱回声，机器能正常识别探头但探头未处于正常激励工作状态。从探头工作原理进行分析，超声探头在获得激励脉冲后发射超声波，经过一段时间延迟后再由探头接收人体反射的回声信号，超声诊断仪对该回声信号进行后续处理并通过显示器显示可用于临床诊断的超声图像，因此判断机器用于激励探头的高压输出存在故障。<br style="color: rgb(102, 102, 102);font-family: "Microsoft YaHei";font-size: 13px;text-align: start;white-space: normal;background-color: rgb(247, 247, 247);" />拆开机器外壳后，首先观察机器启动后电源所有指示灯均是绿色常亮，说明电源各电压输出正常。打开机器E-box机箱，其中AIM板主要负责控制±HV传输并为前端提供主时钟信号，向探头提供工作电压，因此判断机器故障是由AIM板故障引起。<br style="color: rgb(102, 102, 102);font-family: "Microsoft YaHei";font-size: 13px;text-align: start;white-space: normal;background-color: rgb(247, 247, 247);" /> <br style="color: rgb(102, 102, 102);font-family: "Microsoft YaHei";font-size: 13px;text-align: start;white-space: normal;background-color: rgb(247, 247, 247);" /></span><span style="font-size: 15px;color: rgb(0, 92, 173);"><strong>三、检测修理：</strong></span><span style="font-size: 15px;"><br style="color: rgb(102, 102, 102);font-family: "Microsoft YaHei";font-size: 13px;text-align: start;white-space: normal;background-color: rgb(247, 247, 247);" />更换AIM板，故障排除，机器恢复正常工作。</span></p><p style="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;white-space: normal;background-color: rgb(255, 255, 255);text-align: center;box-sizing: border-box !important;overflow-wrap: break-word !important;"><br /></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 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发表于 2020-10-19 22:38:26