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class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.analog.com\/cn\/_\/media\/analog\/en\/landing-pages\/technical-articles\/overview-of-ultrasound-imaging-systems-and-the-electrical-components-required-for-main-subfunctions\/4696fig01.gif?rev=374bec62b5104e628330219303308b2d\" alt=\"\u8d85\u58f0\u6210\u50cf\u7cfb\u7edf\u529f\u80fd\u6846\u56fe\u3002\u5173\u4e8eMaxim\u63a8\u8350\u7684\u8d85\u58f0\u65b9\u6848\u3002\" \/><\/figure>\r\n\r\n\r\n\r\n<p>\u8d85\u58f0\u6210\u50cf\u7cfb\u7edf\u529f\u80fd\u6846\u56fe\u3002\u5173\u4e8eMaxim\u63a8\u8350\u7684\u8d85\u58f0\u65b9\u6848\u3002<\/p>\r\n\r\n\r\n\r\n<h2 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class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.analog.com\/cn\/_\/media\/analog\/en\/landing-pages\/technical-articles\/overview-of-ultrasound-imaging-systems-and-the-electrical-components-required-for-main-subfunctions\/4696fig02.jpg?rev=7bfe23b77947484497b2da7d6e7e866a\" alt=\"\u8d85\u58f0\u6210\u50cf\u7cfb\u7edf\" \/><\/figure>\r\n\r\n\r\n\r\n<p>\u4e8c\u6b21\u8c10\u6ce2\u6210\u50cf\u6709\u4e24\u79cd\u57fa\u672c\u7684\u5b9e\u73b0\u65b9\u6cd5\u3002\u4e00\u79cd\u79f0\u4e3a\u6807\u51c6\u8c10\u6ce2\u6210\u50cf\uff0c\u5c3d\u53ef\u80fd\u6291\u5236\u53d1\u5c04\u4fe1\u53f7\u7684\u4e8c\u6b21\u8c10\u6ce2\uff0c\u4ece\u800c\u4f7f\u63a5\u6536\u5230\u7684\u4e8c\u6b21\u8c10\u6ce2\u4e3b\u8981\u6e90\u4e8e\u4eba\u4f53\u7684\u975e\u7ebf\u6027\u3002\u8fd9\u79cd\u6a21\u5f0f\u8981\u6c42\u4e8c\u6b21\u8c10\u6ce2\u7684\u53d1\u5c04\u80fd\u91cf\u81f3\u5c11\u4f4e\u4e8e\u57fa\u6ce2\u80fd\u91cf50dB\u3002\u6240\u4ee5\uff0c\u53d1\u5c04\u8109\u51b2\u7684\u5360\u7a7a\u6bd4\u8981\u6c42\u662f\u51c6\u786e\u768450%\u4e14\u8bef\u5dee\u5c0f\u4e8e\u00b10.2%\u3002\u53e6\u4e00\u79cd\u65b9\u6cd5\u79f0\u4e3a\u8109\u51b2\u53cd\u76f8\uff0c\u5229\u7528\u53cd\u76f8\u540e\u7684\u53d1\u5c04\u8109\u51b2\u4ea7\u751f\u540c\u4e00\u56fe\u50cf\u8def\u5f84\u7684\u76f8\u4f4d\u76f8\u53cd\u7684\u4e24\u8def\u63a5\u6536\u4fe1\u53f7\u3002\u5728\u63a5\u6536\u5668\u4e2d\u5bf9\u8fd9\u4e24\u8def\u53cd\u76f8\u63a5\u6536\u4fe1\u53f7\u6c42\u548c\uff0c\u6062\u590d\u7531\u4e8e\u4eba\u4f53\u975e\u7ebf\u6027\u4ea7\u751f\u7684\u8c10\u6ce2\u4fe1\u53f7\u3002\u8fd9\u79cd\u8109\u51b2\u53cd\u76f8\u7684\u65b9\u6cd5\u5fc5\u987b\u5728\u53e0\u52a0\u65f6\u5c3d\u53ef\u80fd\u62b5\u6d88\u53d1\u5c04\u8109\u51b2\u7684\u53cd\u76f8\u6210\u5206\u3002\u6240\u4ee5\uff0c\u9ad8\u538b\u8109\u51b2\u53d1\u751f\u5668\u7684\u4e0a\u5347\u65f6\u95f4\u548c\u4e0b\u964d\u65f6\u95f4\u5fc5\u987b\u4e25\u683c\u4e00\u81f4\u3002<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\">\u6210\u50cf\u901a\u9053\u63a5\u6536\u673a<\/h2>\r\n\r\n\r\n\r\n<p>\u8d85\u58f0\u6210\u50cf\u901a\u9053\u7684\u63a5\u6536\u673a\u7528\u4e8e\u68c0\u6d4b\u4e8c\u7ef4(2D)\u4fe1\u53f7\u4ee5\u53ca\u5f69\u8d85\u6d41\u4f53\u6210\u50cf\u6240\u9700\u7684\u8109\u51b2\u591a\u666e\u52d2(PWD)\u4fe1\u53f7\u548c\u9891\u8c31PWD\u3002\u63a5\u6536\u673a\u5305\u62ecTx\/Rx\u5f00\u5173\u3001\u4f4e\u566a\u58f0\u653e\u5927\u5668(LNA)\u3001\u53ef\u53d8\u589e\u76ca\u653e\u5927\u5668(VGA)\u3001\u6297\u6df7\u53e0\u6ee4\u6ce2\u5668(AAF)\u548c\u6a21\/\u6570\u8f6c\u6362\u5668(ADC)\u3002<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">Tx\/Rx\u5f00\u5173<\/h4>\r\n\r\n\r\n\r\n<p>Tx\/Rx\u5f00\u5173\u53ef\u4ee5\u4fdd\u62a4\u4f4e\u566a\u58f0\u653e\u5927\u5668\u514d\u53d7\u9ad8\u538b\u53d1\u5c04\u8109\u51b2\u7684\u5f71\u54cd\uff0c\u540c\u65f6\u5728\u63a5\u6536\u95f4\u6b47\u671f\u95f4\u9694\u79bb\u4f4e\u566a\u58f0\u653e\u5927\u5668\u8f93\u5165\u548c\u53d1\u5c04\u673a\u3002\u8be5\u5f00\u5173\u4e00\u822c\u91c7\u7528\u4e00\u7ec4\u6b63\u786e\u504f\u7f6e\u7684\u4e8c\u6781\u7ba1\u9635\u5217\u5b9e\u73b0\uff0c\u5f53\u6709\u9ad8\u538b\u53d1\u5c04\u8109\u51b2\u51fa\u73b0\u65f6\uff0c\u5b83\u4eec\u4f1a\u81ea\u52a8\u95ed\u5408\u6216\u65ad\u5f00\u3002Tx\/Rx\u5f00\u5173\u5fc5\u987b\u5177\u5907\u5f88\u5feb\u7684\u6062\u590d\u65f6\u95f4\uff0c\u4ee5\u4fdd\u8bc1\u63a5\u6536\u673a\u5728\u53d1\u5c04\u4e00\u4e2a\u8109\u51b2\u540e\u80fd\u591f\u7acb\u523b\u5f00\u542f\u3002\u8fd9\u4e9b\u5feb\u901f\u6062\u590d\u65f6\u95f4\u5bf9\u4e8e\u6d45\u57cb\u6210\u50cf\u548c\u63d0\u4f9b\u4f4e\u5bfc\u901a\u7535\u963b\u786e\u4fdd\u63a5\u6536\u7075\u654f\u5ea6\u81f3\u5173\u91cd\u8981\u3002<\/p>\r\n\r\n\r\n\r\n<h4 class=\"wp-block-heading\">\u4f4e\u566a\u58f0\u653e\u5927\u5668(LNA)<\/h4>\r\n\r\n\r\n\r\n<p>\u63a5\u6536\u673a\u4e2d\u7684LNA\u5fc5\u987b\u5177\u6709\u51fa\u8272\u7684\u566a\u58f0\u6027\u80fd\u548c\u8db3\u591f\u589e\u76ca\u3002\u5bf9\u4e8e\u8bbe\u8ba1\u5408\u7406\u7684\u63a5\u6536\u673a\uff0cLNA\u5c06\u51b3\u5b9a\u6574\u4e2a\u63a5\u6536\u673a\u7684\u566a\u58f0\u6027\u80fd\u3002\u4f20\u611f\u5668\u5355\u5143\u901a\u8fc7\u8f83\u957f\u7684\u540c\u8f74\u7535\u7f06\u8fde\u63a5\u5230\u76f8\u5e94\u7684\u4f4e\u963b\u6297LNA\u7684\u8f93\u5165\u7aef\u3002\u5982\u679c\u6ca1\u6709\u9002\u5f53\u7684\u7535\u7f06\u7ec8\u7aef\u5339\u914d\uff0c\u7535\u7f06\u7535\u5bb9\u548c\u4f20\u611f\u5668\u5355\u5143\u7684\u6e90\u963b\u6297\u5c06\u5927\u5927\u5236\u7ea6\u4ece\u5bbd\u5e26\u4f20\u611f\u5668\u63a5\u6536\u4fe1\u53f7\u7684\u5e26\u5bbd\u3002\u4f20\u611f\u5668\u7535\u7f06\u5339\u914d\u81f3\u4f4e\u963b\uff0c\u6709\u52a9\u4e8e\u964d\u4f4e\u8fd9\u4e00\u6ee4\u6ce2\u7684\u5f71\u54cd\uff0c\u6709\u6548\u63d0\u9ad8\u56fe\u50cf\u8d28\u91cf\u3002\u4e0d\u5e78\u7684\u662f\uff0c\u8fd9\u79cd\u7aef\u63a5\u4e5f\u964d\u4f4e\u4e86LNA\u7684\u8f93\u5165\u4fe1\u53f7\uff0c\u56e0\u800c\u964d\u4f4e\u63a5\u6536\u7075\u654f\u5ea6\u3002\u7531\u6b64\u53ef\u89c1\uff0c\u4e3aLNA\u63d0\u4f9b\u6709\u6e90\u8f93\u5165\u7aef\u63a5\u975e\u5e38\u91cd\u8981\uff0c\u53ef\u4ee5\u5728\u4e0a\u8ff0\u6761\u4ef6\u4e0b\u63d0\u4f9b\u5fc5\u8981\u7684\u4f4e\u8f93\u5165\u963b\u6297\u7aef\u63a5\u548c\u51fa\u8272\u7684\u566a\u58f0\u6027\u80fd\u3002<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.analog.com\/cn\/_\/media\/analog\/en\/landing-pages\/technical-articles\/overview-of-ultrasound-imaging-systems-and-the-electrical-components-required-for-main-subfunctions\/4696fig03.jpg?rev=025d2c4a60044104ae69298fa8e6f430\" alt=\"\u8d85\u58f0\u56fe\u50cf\" \/><\/figure>\r\n\r\n\r\n\r\n<h4 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