{"id":62538,"date":"2026-01-27T07:10:49","date_gmt":"2026-01-27T07:10:49","guid":{"rendered":"https:\/\/www.dewetron.com\/?p=62538"},"modified":"2026-01-27T07:10:50","modified_gmt":"2026-01-27T07:10:50","slug":"frequency-analysis-in-signal-processing","status":"publish","type":"post","link":"https:\/\/www.dewetron.com\/cn\/news\/frequency-analysis-in-signal-processing\/","title":{"rendered":"\u4fe1\u53f7\u5904\u7406\u4e2d\u7684\u9891\u7387\u5206\u6790"},"content":{"rendered":"<div id=\"\" class=\"wp-block-text-columns margin-bottom-small\n      \">\n  <div class=\"container\">\n    <div class=\"row justify-content-center\">\n              <div class=\"col-12\">\n          <h2><\/h2>\n          <div class=\"content-size-normal\">\n            <p>\u8bb8\u591a\u7269\u7406\u73b0\u8c61\uff08\u5982\u632f\u52a8\u3001\u58f0\u5b66\u6216\u7535\u4fe1\u53f7\uff09\u672c\u8d28\u4e0a\u90fd\u662f\u4e0e\u9891\u7387\u76f8\u5173\u7684\u3002\u5728\u6d4b\u91cf\u8fd9\u4e9b\u4fe1\u53f7\u65f6\uff0c\u539f\u59cb\u6570\u636e\u4e0d\u4ec5\u5305\u542b\u4e3b\u8981\u4fe1\u53f7\u672c\u8eab\uff0c\u8fd8\u5305\u62ec\u566a\u58f0\u3001\u5171\u632f\u548c\u8c10\u6ce2\u7b49\u9644\u52a0\u4fe1\u606f\u3002\u8fd9\u4e9b\u7279\u5f81\u53c2\u6570\u5728\u4f7f\u7528\u7eaf\u65f6\u57df\u5206\u6790\u65b9\u6cd5\u65f6\u5f80\u5f80\u96be\u4ee5\u8bc6\u522b\uff0c\u800c\u901a\u8fc7\u9891\u7387\u5206\u6790\u5219\u53ef\u4ee5\u76f8\u5bf9\u8f7b\u677e\u5730\u83b7\u53d6\u7ed3\u679c\u3002<\/p>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u63a2\u8ba8\u9891\u7387\u5206\u6790\u7684\u57fa\u7840\u6982\u5ff5\u3001\u5e38\u89c1\u65b9\u6cd5\u3001\u5178\u578b\u5e94\u7528\u573a\u666f\uff0c\u4ee5\u53ca\u6211\u4eec\u7684\u6d4b\u91cf\u8f6f\u4ef6 OXYGEN \u5982\u4f55\u652f\u6301\u9891\u57df\u5206\u6790\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3>\u4ec0\u4e48\u662f\u9891\u7387\u5206\u6790\uff1f<\/h3>\n<p>\u4e3a\u4e86\u66f4\u597d\u5730\u7406\u89e3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u5148\u7b80\u5355\u56de\u987e\u4e00\u4e0b\u4fe1\u53f7\u5904\u7406\u7684\u57fa\u672c\u6982\u5ff5\u3002\u5728\u4fe1\u53f7\u5904\u7406\u9886\u57df\uff0c\u8fde\u7eed\u4fe1\u53f7\u901a\u5e38\u4e0d\u4ec5\u5728\u65f6\u57df\u4e2d\u8fdb\u884c\u5206\u6790\uff0c\u4e5f\u4f1a\u5728\u9891\u57df\u4e2d\u8fdb\u884c\u5206\u6790\u3002\u65f6\u57df\u5206\u6790\u63cf\u8ff0\u7684\u662f\u4fe1\u53f7\u968f\u65f6\u95f4\u7684\u53d8\u5316\uff0c\u800c\u9891\u7387\u5206\u6790\u5219\u63ed\u793a\u4e86\u4fe1\u53f7\u4e2d\u5305\u542b\u54ea\u4e9b\u9891\u7387\u6210\u5206\uff0c\u4ee5\u53ca\u8fd9\u4e9b\u9891\u7387\u5bf9\u6574\u4f53\u4fe1\u53f7\u7684\u8d21\u732e\u7a0b\u5ea6\u3002\u8981\u5168\u9762\u7406\u89e3\u4e00\u4e2a\u6d4b\u91cf\u4fe1\u53f7\uff0c\u901a\u5e38\u9700\u8981\u7ed3\u5408\u65f6\u57df\u548c\u9891\u57df\u4e24\u79cd\u89c6\u89d2\u3002<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.dewetron.com\/app\/uploads\/2026\/01\/One-Pager-Frequency-Analysis-1.png\" alt=\"\" width=\"800\" \/><\/p>\n<p style=\"text-align: center;\"><em>\u56fe1\uff1a\u4fe1\u53f7\u5728\u65f6\u57df\u4e2d\u7684\u663e\u793a\uff08\u5de6\uff09\uff0c\u5206\u89e3\u4e3a\u5176\u5404\u4e2a\u5206\u91cf\uff08\u4e2d\uff09\uff0c\u4ee5\u53ca\u5728\u9891\u57df\u4e2d\u7684\u53ef\u89c6\u5316\u5448\u73b0\uff08\u53f3\uff09<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>\u90a3\u4e48\uff0c\u8fd9\u5728\u5b9e\u9645\u4e2d\u610f\u5473\u7740\u4ec0\u4e48\u5462\uff1f\u7b80\u5355\u6765\u8bf4\uff0c\u9891\u7387\u5206\u6790\u53ef\u4ee5\u5c06\u590d\u6742\u4fe1\u53f7\u5206\u89e3\u4e3a\u5176\u57fa\u672c\u7684\u9891\u7387\u6210\u5206\u3002\u5b83\u4e0d\u518d\u5173\u6ce8\u4fe1\u53f7\u968f\u65f6\u95f4\u7684\u53d8\u5316\uff0c\u800c\u662f\u5173\u6ce8\u4fe1\u53f7\u7684\u9891\u7387\u7ec4\u6210\u3002\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u8bc6\u522b\u5468\u671f\u6027\u7279\u5f81\u3001\u4e3b\u9891\u7387\u3001\u8c10\u6ce2\u3001\u5171\u632f\u9891\u7387\u7b49\u7279\u5f81\uff0c\u800c\u8fd9\u4e9b\u4fe1\u606f\u5728\u539f\u59cb\u65f6\u57df\u6570\u636e\u4e2d\u5f80\u5f80\u4e0d\u5bb9\u6613\u83b7\u53d6\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3>\u9891\u7387\u5206\u6790\u662f\u5982\u4f55\u5de5\u4f5c\u7684\uff1f<\/h3>\n<p>\u5206\u6790\u4fe1\u53f7\u9891\u7387\u5185\u5bb9\u7684\u65b9\u6cd5\u6709\u5f88\u591a\u79cd\uff0c\u5177\u4f53\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u5e94\u7528\u573a\u666f\u4ee5\u53ca\u9700\u8981\u63d0\u53d6\u7684\u4fe1\u606f\u7c7b\u578b\u3002\u6709\u4e9b\u5206\u6790\u4fa7\u91cd\u4e8e\u8bc6\u522b\u4e3b\u9891\u7387\uff0c\u6709\u4e9b\u5219\u5173\u6ce8\u539f\u59cb\u4fe1\u53f7\u5305\u542b\u7684\u9891\u7387\u6210\u5206\u5982\u4f55\u968f\u65f6\u95f4\u6216\u8fd0\u884c\u6761\u4ef6\u53d8\u5316\u3002<\/p>\n<p>\u5728\u6240\u6709\u9891\u7387\u5206\u6790\u65b9\u6cd5\u4e2d\uff0c\u5085\u91cc\u53f6\u53d8\u6362\uff08Fourier Transform\uff09 \u4ee5\u53ca\u5176\u9ad8\u6548\u5b9e\u73b0\u5f62\u5f0f\u2014\u2014\u5feb\u901f\u5085\u91cc\u53f6\u53d8\u6362\uff08FFT\uff09\uff0c\u662f\u6700\u57fa\u7840\u4e5f\u662f\u6700\u5e38\u7528\u7684\u5de5\u5177\u3002<\/p>\n<p>&nbsp;<\/p>\n<h5>\u4ec0\u4e48\u662f\u5feb\u901f\u5085\u91cc\u53f6\u53d8\u6362\uff08FFT\uff09\uff1f<\/h5>\n<p>\u5feb\u901f\u5085\u91cc\u53f6\u53d8\u6362\uff08FFT\uff09 \u662f\u4e00\u79cd\u6570\u5b66\u53d8\u6362\u65b9\u6cd5\uff0c\u7528\u4e8e\u5c06\u65f6\u57df\u4fe1\u53f7\u8f6c\u6362\u4e3a\u9891\u57df\u4fe1\u53f7\u6765\u8fdb\u884c\u663e\u793a\u3002\u4e0e\u5c55\u793a\u4fe1\u53f7\u968f\u65f6\u95f4\u53d8\u5316\u65b9\u5f0f\u4e0d\u540c\uff0cFFT \u663e\u793a\u7684\u662f\u4fe1\u53f7\u4e2d\u5305\u542b\u54ea\u4e9b\u9891\u7387\u6210\u5206\uff0c\u4ee5\u53ca\u5404\u4e2a\u9891\u7387\u7684\u5f3a\u5ea6\u3002<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"aligncenter\" src=\"https:\/\/www.dewetron.com\/app\/uploads\/2026\/01\/One-Pager-Frequency-Analysis-2.png\" alt=\"\" width=\"800\" \/><\/p>\n<p style=\"text-align: center;\">\u56fe2\uff1a\u5de6\uff1a\u7531\u591a\u4e2a\u6b63\u5f26\u6ce2\u5206\u91cf\u7ec4\u6210\u7684\u77e9\u5f62\u4fe1\u53f7\uff1b\u4e2d\uff1a\u65f6\u95f4\u57df\u5230\u9891\u7387\u57df\u7684\u5085\u91cc\u53f6\u53d8\u6362\uff1b\u53f3\uff1a\u4ec5\u663e\u793a\u6b63\u9891\u7387\u7684\u4e00\u4fa7\u9891\u8c31\u56fe<\/p>\n<p>&nbsp;<\/p>\n<p>FFT \u662f\u4e00\u79cd\u9ad8\u6548\u7b97\u6cd5\uff0c\u5373\u4f7f\u5728\u5904\u7406\u5927\u91cf\u6570\u636e\u65f6\uff0c\u4e5f\u80fd\u5feb\u901f\u5b8c\u6210\u8ba1\u7b97\u3002\u5176\u7ed3\u679c\u901a\u5e38\u4ee5\u5e45\u503c\u8c31\u6216\u529f\u7387\u8c31\u7684\u5f62\u5f0f\u5448\u73b0\u3002<\/p>\n<p>&nbsp;<\/p>\n<h5>\u5e38\u89c1\u7684\u6570\u5b66\u5de5\u5177\u4e0e\u5206\u6790\u65b9\u6cd5<\/h5>\n<p>\u8bb8\u591a\u9ad8\u7ea7\u9891\u7387\u5206\u6790\u65b9\u6cd5\u90fd\u662f\u57fa\u4e8e FFT\uff0c\u5e76\u7ed3\u5408\u989d\u5916\u7684\u6570\u5b66\u5904\u7406\uff0c\u4ee5\u83b7\u5f97\u66f4\u6df1\u5165\u7684\u5206\u6790\u7ed3\u679c\u3002\u5e38\u89c1\u7684\u65b9\u6cd5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u5e45\u5ea6\u8c31\u548c\u529f\u7387\u8c31<br \/>\n\u663e\u793a\u4e0d\u540c\u9891\u7387\u5bf9\u4fe1\u53f7\u7684\u8d21\u732e\u5f3a\u5ea6\uff0c\u4fbf\u4e8e\u8bc6\u522b\u4e3b\u9891\u548c\u8c10\u6ce2\u3002<\/li>\n<li>\u9891\u8c31\u8272\u56fe\uff08Spectrogram\uff09<br \/>\n\u5c55\u793a\u4fe1\u53f7\u9891\u7387\u6210\u5206\u968f\u65f6\u95f4\u7684\u53d8\u5316\uff0c\u5c06\u65f6\u95f4\u548c\u9891\u7387\u4fe1\u606f\u663e\u793a\u5728\u540c\u4e00\u56fe\u4e2d\u3002<\/li>\n<li>\u9636\u6b21\u5206\u6790\u4e0e\u8c10\u6ce2\u5206\u6790<br \/>\n\u6309\u8f6c\u901f\u6216\u57fa\u9891\u5206\u6790\u9891\u7387\u6210\u5206\uff0c\u5e38\u7528\u4e8e\u65cb\u8f6c\u673a\u68b0\u548c\u7535\u529b\u7cfb\u7edf\u3002<\/li>\n<li>\u9891\u57df\u6ee4\u6ce2<br \/>\n\u7528\u4e8e\u63d0\u53d6\u6216\u6291\u5236\u7279\u5b9a\u9891\u7387\u8303\u56f4\uff0c\u4ece\u800c\u7a81\u51fa\u5173\u952e\u4fe1\u53f7\u6216\u51cf\u5c11\u566a\u58f0\u5e72\u6270\u3002<\/li>\n<li>\u52a0\u7a97\u4e0e\u5e73\u5747\u6280\u672f<br \/>\n\u901a\u8fc7\u51cf\u5c11\u566a\u58f0\u548c\u9891\u8c31\u6cc4\u6f0f\uff0c\u63d0\u9ad8\u9891\u8c31\u5206\u6790\u7684\u7cbe\u5ea6\u548c\u7a33\u5b9a\u6027\u3002<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>\u9891\u7387\u5206\u6790\u7684\u5e94\u7528\u573a\u666f\u4e0e\u610f\u4e49<\/h3>\n<p>\u9891\u7387\u5206\u6790\u5728\u6d89\u53ca\u52a8\u6001\u3001\u632f\u8361\u6216\u5468\u671f\u6027\u7279\u5f81\u573a\u666f\u7684\u5e94\u7528\u4e2d\u5c24\u4e3a\u91cd\u8981\u3002\u5b83\u80fd\u591f\u63ed\u793a\u65f6\u57df\u4e2d\u96be\u4ee5\u53d1\u73b0\u7684\u4fe1\u606f\uff0c\u56e0\u6b64\u88ab\u5e7f\u6cdb\u5e94\u7528\u4e8e\u591a\u4e2a\u884c\u4e1a\u548c\u9886\u57df\u3002<\/p>\n<p>\u6c7d\u8f66\u4e0e\u4ea4\u901a<\/p>\n<ul>\n<li>\u53d1\u52a8\u673a\u3001\u4f20\u52a8\u7cfb\u7edf\u548c\u7535\u673a\u7684 NVH \u5206\u6790<\/li>\n<li>\u8bc6\u522b\u4e0e\u8f6c\u901f\u76f8\u5173\u7684\u6548\u5e94\u548c\u5171\u632f<\/li>\n<\/ul>\n<p>\u822a\u7a7a\u822a\u5929\u4e0e\u7ed3\u6784\u6d4b\u8bd5<\/p>\n<ul>\n<li>\u6a21\u6001\u5206\u6790\u4e0e\u5171\u632f\u8bc6\u522b<\/li>\n<li>\u7ed3\u6784\u632f\u52a8\u4e0e\u75b2\u52b3\u5206\u6790<\/li>\n<\/ul>\n<p>\u7535\u529b\u4e0e\u80fd\u6e90<\/p>\n<ul>\n<li>\u7535\u7f51\u4e2d\u7684\u8c10\u6ce2\u5206\u6790<\/li>\n<li>\u8bc6\u522b\u7535\u80fd\u8d28\u91cf\u95ee\u9898\u548c\u7cfb\u7edf\u6270\u52a8<\/li>\n<\/ul>\n<p>\u5de5\u4e1a\u5236\u9020\u4e0e\u8fd0\u884c\u72b6\u6001\u76d1\u6d4b<\/p>\n<ul>\n<li>\u8f74\u627f\u6216\u9f7f\u8f6e\u6545\u969c\u7684\u65e9\u671f\u68c0\u6d4b<\/li>\n<li>\u57fa\u4e8e\u9891\u7387\u7684\u8bbe\u5907\u5065\u5eb7\u76d1\u6d4b<\/li>\n<\/ul>\n<p>\u58f0\u5b66\u4e0e\u566a\u58f0\u5206\u6790<\/p>\n<ul>\n<li>\u8bc6\u522b\u4e3b\u8981\u566a\u58f0\u6e90<\/li>\n<li>\u8bc4\u4f30\u9891\u7387\u52a0\u6743\u58f0\u7ea7<\/li>\n<\/ul>\n<p>\u79d1\u5b66\u7814\u7a76<\/p>\n<ul>\n<li>\u5929\u4f53\u7269\u7406\u5b66\u4e2d\u7684\u5468\u671f\u4fe1\u53f7\u5206\u6790<\/li>\n<li>\u5730\u9707\u5b66\u4e2d\u7684\u5730\u9707\u6ce2\u5206\u6790\u53ca\u5730\u4e0b\u7ed3\u6784\u7814\u7a76<\/li>\n<\/ul>\n<p>\u533b\u5b66<\/p>\n<ul>\n<li>\u5fc3\u7535\u56fe\uff08ECG\uff09\u548c\u8111\u7535\u56fe\uff08EEG\uff09\u5206\u6790<\/li>\n<li>\u8d85\u58f0\u4fe1\u53f7\u548c\u751f\u7406\u8282\u5f8b\u8bc4\u4f30<\/li>\n<\/ul>\n<p>\u901a\u4fe1\u6280\u672f<\/p>\n<ul>\n<li>\u8c03\u5236\u65b9\u6848\u548c\u4fe1\u53f7\u5e26\u5bbd\u5206\u6790<\/li>\n<li>\u5e72\u6270\u3001\u566a\u58f0\u548c\u9891\u8c31\u62e5\u585e\u68c0\u6d4b<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>\u4f7f\u7528 OXYGEN \u8fdb\u884c\u9891\u7387\u5206\u6790<\/h3>\n<p>\u4fe1\u53f7\u91c7\u96c6\u3001\u5904\u7406\u548c\u5206\u6790\u662f\u6211\u4eec\u7684\u6838\u5fc3\u80fd\u529b\uff0c\u56e0\u6b64\u6211\u4eec\u7684\u6d4b\u91cf\u8f6f\u4ef6 OXYGEN \u63d0\u4f9b\u4e86\u5168\u9762\u7684\u9891\u7387\u5206\u6790\u5de5\u5177\u3002<\/p>\n<p>\u4ece\u76f4\u89c2\u6613\u7528\u7684\u5206\u6790\u4e0e\u53ef\u89c6\u5316\u5de5\u5177\uff08\u5982\u9891\u8c31\u5206\u6790\u4eea\u548c\u9891\u8c31\u56fe\uff09\uff0c\u5230\u7075\u6d3b\u7684\u6ee4\u6ce2\u529f\u80fd\uff0c\u7528\u6237\u53ef\u4ee5\u8f7b\u677e\u63d0\u53d6\u5173\u952e\u9891\u7387\u8303\u56f4\u6216\u6291\u5236\u4e0d\u9700\u8981\u7684\u4fe1\u53f7\u6210\u5206\u3002<br \/>\n\u6b64\u5916\uff0cOXYGEN \u8fd8\u652f\u6301\u591a\u79cd\u5206\u6790\u65b9\u6cd5\uff0c\u5305\u62ec FFT\u3001STFT \u548c CPB \u5206\u6790\uff0c\u4ee5\u53ca\u66f4\u9ad8\u7ea7\u7684\u5e94\u7528\uff0c\u5982\u6a21\u6001\u6d4b\u8bd5\u3001\u9636\u6b21\u5206\u6790\u3001\u58f0\u7ea7\u5206\u6790\u7b49\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3 OXYGEN \u5728\u9891\u7387\u5206\u6790\u65b9\u9762\u7684\u5b8c\u6574\u529f\u80fd\u6982\u89c8\uff0c\u6b22\u8fce\u4e0b\u8f7d\u6211\u4eec\u7684\u4e13\u5c5e\u4e00\u9875\u5f0f\u4ecb\u7ecd\u8d44\u6599\uff1a<\/p>\n<p>&nbsp;<\/p>\n\n          <\/div>\n        <\/div>\n          <\/div>\n  <\/div>\n<\/div>\n\n\n<div id=\"\" class=\"wp-block-claim-links-gray margin-bottom-none\">\n  <div class=\"container-fluid bg-container py-7 bg-darkgray\">\n    <div class=\"container position-relative\">\n      <div class=\"claim col-12 col-lg-8 offset-lg-2 text-center text-light\">\n                  <h3 class=\"h3 text-uppercase\">\u4e0b\u8f7d<\/h3>\n                          <h4 class=\"mb-0\">\n            \u8981\u5168\u9762\u4e86\u89e3OXYGEN\u7684\u9891\u7387\u5206\u6790\u529f\u80fd\uff0c\u8bf7\u4e0b\u8f7d\u6211\u4eec\u7684\u4e13\u5c5e\u5355\u9875\u6307\u5357\uff1a\n          <\/h4>\n                          <div class=\"link-button d-flex flex-wrap mt-4 justify-content-center gap-4\">\n                          <a class=\"dewetron-btn\" href=\"https:\/\/ccc.dewetron.com\/dl\/69649ebb-2890-4384-8847-4eacd9c49a3c\" target=\"\">\n          \n      <span>\u9891\u7387\u5206\u6790<\/span>\n      <\/a>\n                                              <\/div>\n              <\/div>\n    <\/div>\n    <div class=\"triangle-left\">\n      <svg width=\"473\" height=\"469\" viewBox=\"0 0 473 469\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n<path d=\"M323.984 352.833H79.0486L13.0728 467.099V468.52H390.784L323.984 352.833Z\" fill=\"#B0B0AF\"\/>\n<path d=\"M134.967 0L-68 351.55L-2.02418 465.84L-0.810036 466.55L268.545 0H134.967Z\" fill=\"#B0B0AF\"\/>\n<path d=\"M472.154 352.833L275.853 12.8511L209.053 128.515L405.354 468.52L472.154 352.833Z\" fill=\"#B0B0AF\"\/>\n<\/svg>    <\/div>\n    <div class=\"triangle-right\">\n      <svg width=\"462\" height=\"644\" viewBox=\"0 0 462 644\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n<path d=\"M538.396 484.622H201.974L111.355 641.569V643.52H630.148L538.396 484.622Z\" fill=\"#B0B0AF\"\/>\n<path d=\"M278.779 0L0 482.86L90.6189 639.839L92.2865 640.814L462.251 0H278.779Z\" fill=\"#B0B0AF\"\/>\n<path d=\"M741.911 484.622L472.288 17.6514L380.537 176.518L650.159 643.52L741.911 484.622Z\" fill=\"#B0B0AF\"\/>\n<\/svg>    <\/div>\n  <\/div>\n<\/div>\n\n\n<div id=\"\" class=\"wp-block-news-slider margin-bottom-none\">\n  <div class=\"container-fluid bg-lightgray py-lg-8 py-6\">\n    <div class=\"header-wrapper container\">\n      <div class=\"row flex-row flex-wrap\">\n        <div class=\"col-12 col-lg-6\">\n          <div class=\"content-wrapper\">\n            <div class=\"content\">\n                                      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src=\"https:\/\/www.dewetron.com\/app\/uploads\/2023\/01\/header_frequency-accuracy.jpg\"\n        alt=\"\"\n        title=\"\"\n        loading=\"lazy\"\n                    onerror=\"this.src = 'https:\/\/www.dewetron.com\/app\/themes\/dewetron\/public\/images\/fallback.8952c5.jpg'\"\n            >\n<\/picture>\n                  <div class=\"card-content p-2\">\n                    <span class=\"category d-inline-flex\">Whitepaper<\/span>\n                    <h5 class=\"mb-2 mt-4 text-uppercase\">\n                      Frequency accuracy: how accurate is the DEWE3 system clock really?\n                    <\/h5>\n                                        <span class=\"read-more text-primary text-uppercase mt-4 d-block\">\n                      \u4e86\u89e3\u66f4\u591a\n                    <\/span>\n                  <\/div>\n      <span><\/span>\n      <\/a>\n              <\/div>\n                          <div class=\"news-card swiper-slide col-lg-4 col-12 bg-light \">\n                <a class=\"\" href=\"https:\/\/www.dewetron.com\/news\/application-note-absolute-signal-accuracy-in-daq\/\" target=\"\">\n          <picture>\n        <img decoding=\"async\"\n        class=\"img-fluid aspect-4-3\" size=\"full\"\n        src=\"https:\/\/www.dewetron.com\/app\/uploads\/2024\/04\/header_absolute-signal-accuracy-in-daq.jpg\"\n        alt=\"\"\n        title=\"\"\n        loading=\"lazy\"\n                    onerror=\"this.src = 'https:\/\/www.dewetron.com\/app\/themes\/dewetron\/public\/images\/fallback.8952c5.jpg'\"\n            >\n<\/picture>\n                  <div class=\"card-content p-2\">\n                    <span class=\"category d-inline-flex\">Application Note<\/span>\n                    <h5 class=\"mb-2 mt-4 text-uppercase\">\n                      Absolute signal accuracy in data acquisition\n                    <\/h5>\n                                        <span class=\"read-more text-primary text-uppercase mt-4 d-block\">\n                      \u4e86\u89e3\u66f4\u591a\n                    <\/span>\n                  <\/div>\n      <span><\/span>\n      <\/a>\n              <\/div>\n                          <div class=\"news-card swiper-slide col-lg-4 col-12 bg-light \">\n                <a class=\"\" href=\"https:\/\/www.dewetron.com\/news\/dewetrons-power-analyzer\/\" target=\"\">\n          <picture>\n        <img decoding=\"async\"\n        class=\"img-fluid aspect-4-3\" size=\"full\"\n        src=\"https:\/\/www.dewetron.com\/app\/uploads\/2024\/08\/header_power-analyzer-comparison_pa.jpg\"\n        alt=\"\"\n        title=\"\"\n        loading=\"lazy\"\n                    onerror=\"this.src = 'https:\/\/www.dewetron.com\/app\/themes\/dewetron\/public\/images\/fallback.8952c5.jpg'\"\n            >\n<\/picture>\n                  <div class=\"card-content p-2\">\n                    <span class=\"category d-inline-flex\">Hardware News<\/span>\n                    <h5 class=\"mb-2 mt-4 text-uppercase\">\n                      Comparison of DEWETRON&#8217;s power analyzer: What are the differences?\n                    <\/h5>\n                                        <span class=\"read-more text-primary text-uppercase mt-4 d-block\">\n                      \u4e86\u89e3\u66f4\u591a\n                    <\/span>\n                  <\/div>\n      <span><\/span>\n      <\/a>\n              <\/div>\n                          <div class=\"news-card swiper-slide col-lg-4 col-12 bg-light \">\n                <a class=\"\" href=\"https:\/\/www.dewetron.com\/news\/dewetrons-litepa-the-easy-to-integrate-standard-power-analyzer\/\" target=\"\">\n          <picture>\n        <img decoding=\"async\"\n        class=\"img-fluid aspect-4-3\" size=\"full\"\n        src=\"https:\/\/www.dewetron.com\/app\/uploads\/2024\/06\/header_litepa_.jpg\"\n        alt=\"\"\n        title=\"\"\n        loading=\"lazy\"\n                    onerror=\"this.src = 'https:\/\/www.dewetron.com\/app\/themes\/dewetron\/public\/images\/fallback.8952c5.jpg'\"\n            >\n<\/picture>\n                  <div class=\"card-content p-2\">\n                    <span class=\"category d-inline-flex\">Hardware News<\/span>\n                    <h5 class=\"mb-2 mt-4 text-uppercase\">\n                      DEWETRON&#8217;s LITE[PA]: The easy-to-integrate standard power analyzer\n                    <\/h5>\n                                        <span class=\"read-more text-primary text-uppercase mt-4 d-block\">\n                      \u4e86\u89e3\u66f4\u591a\n                    <\/span>\n                  <\/div>\n      <span><\/span>\n      <\/a>\n              <\/div>\n                          <div class=\"news-card swiper-slide col-lg-4 col-12 bg-light \">\n                <a class=\"\" href=\"https:\/\/www.dewetron.com\/cn\/news\/new-trion3-24xx-acc-lv-modules\/\" target=\"\">\n          <picture>\n        <img decoding=\"async\"\n        class=\"img-fluid aspect-4-3\" size=\"full\"\n        src=\"https:\/\/www.dewetron.com\/app\/uploads\/2026\/02\/TRION3-24xx_ACC-LV_header.jpg\"\n        alt=\"\"\n        title=\"\"\n        loading=\"lazy\"\n                    onerror=\"this.src = 'https:\/\/www.dewetron.com\/app\/themes\/dewetron\/public\/images\/fallback.8952c5.jpg'\"\n            >\n<\/picture>\n                  <div class=\"card-content p-2\">\n                    <span class=\"category d-inline-flex\">\u786c\u4ef6\u8d44\u8baf<\/span>\n                    <h5 class=\"mb-2 mt-4 text-uppercase\">\n                      \u4f7f\u7528\u5168\u65b0 TRION3-24xx-ACC\/LV \u6a21\u5757\u5b9e\u73b0\u9694\u79bb\u4f4e\u7535\u538b\u4e0e IEPE \u6570\u636e\u91c7\u96c6\n                    <\/h5>\n                                        <span class=\"read-more text-primary text-uppercase mt-4 d-block\">\n                      \u4e86\u89e3\u66f4\u591a\n                    <\/span>\n                  <\/div>\n      <span><\/span>\n      <\/a>\n              <\/div>\n                          <div class=\"news-card swiper-slide col-lg-4 col-12 bg-light \">\n                <a class=\"\" href=\"https:\/\/www.dewetron.com\/cn\/news\/oxygen-8-major-release\/\" target=\"\">\n          <picture>\n        <img decoding=\"async\"\n        class=\"img-fluid aspect-4-3\" size=\"full\"\n        src=\"https:\/\/www.dewetron.com\/app\/uploads\/2026\/02\/header_oxygen_8.0.jpg\"\n        alt=\"\"\n        title=\"\"\n        loading=\"lazy\"\n                    onerror=\"this.src = 'https:\/\/www.dewetron.com\/app\/themes\/dewetron\/public\/images\/fallback.8952c5.jpg'\"\n            >\n<\/picture>\n                  <div class=\"card-content p-2\">\n                    <span class=\"category d-inline-flex\">\u8f6f\u4ef6\u8d44\u8baf<\/span>\n                    <h5 class=\"mb-2 mt-4 text-uppercase\">\n                      OXYGEN 8.0 \u2014\u2014\u8fde\u63a5\u6027\u3001\u79fb\u52a8\u6027\u4e0e\u6613\u7528\u6027\u5168\u9762\u5347\u7ea7\u7684\u91cd\u5927\u7248\u672c\n                    <\/h5>\n                                        <span class=\"read-more text-primary text-uppercase mt-4 d-block\">\n                      \u4e86\u89e3\u66f4\u591a\n                    <\/span>\n                  <\/div>\n      <span><\/span>\n      <\/a>\n              <\/div>\n                          <div class=\"news-card swiper-slide col-lg-4 col-12 bg-light \">\n                <a class=\"\" href=\"https:\/\/www.dewetron.com\/cn\/news\/%e9%80%82%e7%94%a8%e4%ba%8e%e7%a7%bb%e5%8a%a8%e8%ae%be%e5%a4%87%e7%9a%84-oxygen-go-%e5%ba%94%e7%94%a8\/\" target=\"\">\n          <picture>\n        <img decoding=\"async\"\n        class=\"img-fluid aspect-4-3\" size=\"full\"\n        src=\"https:\/\/www.dewetron.com\/app\/uploads\/2026\/02\/OXYGEN-Go-Easy-Connectivity-teststand.png\"\n        alt=\"\"\n        title=\"\"\n        loading=\"lazy\"\n                    onerror=\"this.src = 'https:\/\/www.dewetron.com\/app\/themes\/dewetron\/public\/images\/fallback.8952c5.jpg'\"\n            >\n<\/picture>\n                  <div class=\"card-content p-2\">\n                    <span class=\"category d-inline-flex\">\u8f6f\u4ef6\u8d44\u8baf<\/span>\n                    <h5 class=\"mb-2 mt-4 text-uppercase\">\n                      \u9002\u7528\u4e8e\u79fb\u52a8\u8bbe\u5907\u7684 OXYGEN-GO \u5e94\u7528\n                    <\/h5>\n                                        <span class=\"read-more text-primary text-uppercase mt-4 d-block\">\n                      \u4e86\u89e3\u66f4\u591a\n                    <\/span>\n                  <\/div>\n      <span><\/span>\n      <\/a>\n              <\/div>\n                          <div class=\"news-card swiper-slide col-lg-4 col-12 bg-light \">\n                <a class=\"\" href=\"https:\/\/www.dewetron.com\/cn\/news\/frequency-analysis-in-signal-processing\/\" target=\"\">\n          <picture>\n        <img decoding=\"async\"\n        class=\"img-fluid aspect-4-3\" size=\"full\"\n        src=\"https:\/\/www.dewetron.com\/app\/uploads\/2026\/01\/One-Pager-Frequency-Analysis-Header.jpeg\"\n        alt=\"\"\n        title=\"\"\n        loading=\"lazy\"\n                    onerror=\"this.src = 'https:\/\/www.dewetron.com\/app\/themes\/dewetron\/public\/images\/fallback.8952c5.jpg'\"\n            >\n<\/picture>\n                  <div class=\"card-content p-2\">\n                    <span class=\"category d-inline-flex\">DAQ \u77e5\u8bc6<\/span>\n                    <h5 class=\"mb-2 mt-4 text-uppercase\">\n                      \u4fe1\u53f7\u5904\u7406\u4e2d\u7684\u9891\u7387\u5206\u6790\n                    <\/h5>\n                                        <span class=\"read-more text-primary text-uppercase mt-4 d-block\">\n                      \u4e86\u89e3\u66f4\u591a\n                    <\/span>\n                  <\/div>\n      <span><\/span>\n      <\/a>\n              <\/div>\n                          <div class=\"news-card swiper-slide col-lg-4 col-12 bg-light \">\n                <a class=\"\" href=\"https:\/\/www.dewetron.com\/cn\/news\/statistical-analysis-in-oxygen\/\" target=\"\">\n          <picture>\n        <img decoding=\"async\"\n        class=\"img-fluid aspect-4-3\" size=\"full\"\n        src=\"https:\/\/www.dewetron.com\/app\/uploads\/2025\/12\/Header-statistical-data-analysis.jpeg\"\n        alt=\"\"\n        title=\"\"\n        loading=\"lazy\"\n                    onerror=\"this.src = 'https:\/\/www.dewetron.com\/app\/themes\/dewetron\/public\/images\/fallback.8952c5.jpg'\"\n            >\n<\/picture>\n                  <div class=\"card-content p-2\">\n                    <span class=\"category d-inline-flex\">DAQ \u77e5\u8bc6<\/span>\n                    <h5 class=\"mb-2 mt-4 text-uppercase\">\n                      \u4ec0\u4e48\u662f\u7edf\u8ba1\u5206\u6790\uff1f\n                    <\/h5>\n                                        <span class=\"read-more text-primary text-uppercase mt-4 d-block\">\n                      \u4e86\u89e3\u66f4\u591a\n                    <\/span>\n                  <\/div>\n      <span><\/span>\n      <\/a>\n              <\/div>\n                          <div class=\"news-card swiper-slide col-lg-4 col-12 bg-light \">\n                <a class=\"\" href=\"https:\/\/www.dewetron.com\/cn\/news\/oxygen-7-7-%e6%9b%b4%e6%99%ba%e8%83%bd%e7%9a%84%e6%95%b0%e6%8d%ae%e9%87%87%e9%9b%86%ef%bc%8c%e5%85%a8%e6%96%b0%e5%8a%9f%e8%83%bd%e6%8f%90%e5%8d%87\/\" target=\"\">\n          <picture>\n        <img decoding=\"async\"\n        class=\"img-fluid aspect-4-3\" size=\"full\"\n        src=\"https:\/\/www.dewetron.com\/app\/uploads\/2025\/11\/header_oxygen_7.7.jpg\"\n        alt=\"\"\n        title=\"\"\n        loading=\"lazy\"\n                    onerror=\"this.src = 'https:\/\/www.dewetron.com\/app\/themes\/dewetron\/public\/images\/fallback.8952c5.jpg'\"\n            >\n<\/picture>\n                  <div class=\"card-content p-2\">\n                    <span class=\"category d-inline-flex\">\u8f6f\u4ef6\u8d44\u8baf<\/span>\n                    <h5 class=\"mb-2 mt-4 text-uppercase\">\n                      OXYGEN 7.7 \u2014 \u66f4\u667a\u80fd\u7684\u6570\u636e\u91c7\u96c6\uff0c\u5168\u65b0\u529f\u80fd\u63d0\u5347\n                    <\/h5>\n                                        <span class=\"read-more text-primary text-uppercase mt-4 d-block\">\n                      \u4e86\u89e3\u66f4\u591a\n                    <\/span>\n                  <\/div>\n      <span><\/span>\n      <\/a>\n              <\/div>\n                      <\/div>\n        <\/div>\n        <div class=\"swiper-button-custom swiper-button-prev-custom p-0\">\n            <svg width=\"89\" height=\"103\" viewBox=\"0 0 89 103\" fill=\"none\" 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