[欧姆龙] 拆解欧姆龙电子血压计

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查看43098 | 回复0 | 2024-12-9 20:19:47 | 显示全部楼层 |阅读模式
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某次活动中了个欧姆龙的电子血压计:可以测量血压,心率,小巧便携,使用简单,且只需两节电池。

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主要参数如下:   

·型号:HEM-8612

·显示:数字段码屏

·测量方式:示波测定法

·测量精度:压力:±3mmHg

·脉搏精度:±5%

·测量压力范围:0~299mmHg,脉搏:40~180次/分

·宣称符合AAMI标准(美国医疗器械促进协会),拆它看看肚子里有几碗粉儿。

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拿掉电池后腕带处有一颗十字螺丝,拆下来后就可以分离腕带,固定上下壳的螺丝有2个,拆掉即可分开了。

[img=553.739990234375,389.1400146484375]https://mmbiz.qpic.cn/mmbiz_jpg/xML2GYBfTfnyw0Qqic53cLycjPXCRRGNnccNqYojwn6YicpDY8BQzoLoeym3I5RTOnWOLQjl2H0ibEapRlfHhss3g/640?wx_fmt=jpeg[/img]

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拿掉上盖可以看到一个段码屏两个锅仔按键(还阉割了一刀,应该是储存功能)。段码屏有专用支架支撑。

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拿掉板子可以看到背壳里微型打气泵(给臂带充气打压),一个电磁阀(用来测量结束后放气)。

[img=553.739990234375,415.3399963378906]https://mmbiz.qpic.cn/mmbiz_jpg/xML2GYBfTfnyw0Qqic53cLycjPXCRRGNn5xibd6XwlDEzcVs8PmdW1LiaRxaVBks5ITicYssJkmVG7afmbXcmaYkDg/640?wx_fmt=jpeg[/img]

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主控采用东芝的T5CX3(IC1),资料是真难找啊,来自欧姆龙自己的压力传感器PP02(IC2),还有两颗eeprom BR24G08(IC3,IC4)。

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IC5应该是颗DCDC,用来驱动气泵的,LCD屏是导电胶热压上去的。

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背面挺整洁的,留了好多测试点。        
         
这款应该是8613的阉割版,可惜我手里没其他的血压仪没法对比他的精度怎么样。不过很小巧便携,测量仅需2分钟,还是挺方便的。

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