{"id":5380,"date":"2023-06-05T16:19:39","date_gmt":"2023-06-05T08:19:39","guid":{"rendered":"http:\/\/www.dcl-controls.com\/?p=5380"},"modified":"2025-03-31T09:18:37","modified_gmt":"2025-03-31T09:18:37","slug":"why-voltage-signal-oscillate","status":"publish","type":"post","link":"https:\/\/dclcontrols.com\/zh_cn\/%e6%94%af%e6%8c%81\/ta-acutator\/%e4%b8%ba%e4%bb%80%e4%b9%88%e7%94%b5%e5%8e%8b%e4%bf%a1%e5%8f%b7%e4%bc%9a%e6%8c%af%e8%8d%a1","title":{"rendered":"\u4e3a\u4ec0\u4e48\u7535\u538b\u8f93\u51fa\u4fe1\u53f7\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\u4f1a\u53d1\u751f\u632f\u8361\uff1f"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"5380\" class=\"elementor elementor-5380\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1893469 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"1893469\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-61d5be0\" data-id=\"61d5be0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f64e7bf elementor-widget elementor-widget-text-editor\" data-id=\"f64e7bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3>\u00a0<\/h3><h2><strong>1.\u7535\u538b\u4fe1\u53f7\u4f20\u8f93\u8def\u5f84<\/strong><\/h2><figure style=\"width: 960px\" class=\"wp-caption alignnone\"><img fetchpriority=\"high\" decoding=\"async\" src=\"\/wp-content\/uploads\/2023\/06\/voltage-signal-path.webp\" alt=\"\u56fe 1 \u7535\u538b\u6e90\u4fe1\u53f7\u7684\u4f20\u8f93\u8def\u5f84\" width=\"960\" height=\"299\" \/><figcaption class=\"wp-caption-text\">\u56fe 1 \u7535\u538b\u6e90\u4fe1\u53f7\u7684\u4f20\u8f93\u8def\u5f84<\/figcaption><\/figure><p>\u5982\u56fe\u6240\u793a <strong>\u56fe 1<\/strong>\u7535\u538b\u4fe1\u53f7\u4f20\u8f93\u7cfb\u7edf\u7531\u4e09\u4e2a\u5173\u952e\u90e8\u5206\u7ec4\u6210\uff1a<\/p><ol><li><p><strong>\u8d1f\u53cd\u9988\u7535\u538b\u8f93\u51fa\u7535\u8def<\/strong><\/p><\/li><li><p><strong>\u4fe1\u53f7\u4f20\u8f93\u7ebf<\/strong><\/p><ul><li><p>\u5305\u62ec <strong>\u5bc4\u751f\u7535\u5bb9 (C1)<\/strong> \u548c <strong>\u5bc4\u751f\u7535\u611f\uff08L1\uff09<\/strong>\u53d6\u51b3\u4e8e <strong>\u7535\u7f06\u957f\u5ea6<\/strong> \u548c <strong>\u7ebf\u8def\u5e03\u5c40<\/strong>.<\/p><\/li><\/ul><\/li><li><p><strong>\u8f93\u5165\u4fe1\u53f7\u91c7\u96c6\u7535\u8def<\/strong><\/p><ul><li><p>\u53ef\u5305\u62ec <strong>\u4f4e\u901a\u6ee4\u6ce2\u5668\uff08L2\u3001C2\uff09<\/strong>.<\/p><\/li><\/ul><\/li><\/ol><hr \/><h2><strong>2.\u4e3a\u4ec0\u4e48\u4f1a\u53d1\u751f\u632f\u8361\uff1f<\/strong><\/h2><p>\u5728\u8d1f\u53cd\u9988\u7535\u538b\u4fe1\u53f7\u7cfb\u7edf\u4e2d\uff0c\u8f93\u5165\u4fe1\u53f7\u7684\u8ba1\u7b97\u516c\u5f0f\u4e3a<\/p><p><span class=\"katex\">\u2223Xi\u2032\u2223=\u2223Xi\u2223-\u2223Xf\u2223|X_i'| = |X_i| - |X_f|<\/span><\/p><p>\u4f46\u662f\uff0c\u5982\u679c <strong>\u53cd\u9988\u4fe1\u53f7 (|Xf|) \u76f8\u79fb 180<\/strong>\uff0c\u7b49\u5f0f\u53d8\u4e3a<\/p><p><span class=\"katex\">\u2223Xi\u2032\u2223=\u2223Xi\u2223+\u2223Xf\u2223|X_i'| = |X_i| + |X_f|<\/span><\/p><p>\u8fd9\u610f\u5473\u7740\uff0c\u5373\u4f7f <strong>\u65e0\u8f93\u5165\u4fe1\u53f7<\/strong> \u5e94\u7528 (<strong>|Xi| = 0<\/strong>)\u3001 <strong>\u53cd\u9988\u4fe1\u53f7\u7ef4\u6301\u8f93\u51fa<\/strong>\u5bfc\u81f4 <strong>\u81ea\u6301\u632f\u8361<\/strong>.<\/p><p>\u8981\u53d1\u751f\u632f\u8361\uff0c\u5fc5\u987b\u6ee1\u8db3\u4e24\u4e2a\u6761\u4ef6\uff1a<\/p><ol><li><p><strong>\u73af\u8def\u589e\u76ca\u5927\u4e8e 1\uff1a<\/strong> <strong>|AF| &gt; 1<\/strong><\/p><\/li><li><p><strong>\u76f8\u79fb\u6ee1\u8db3<\/strong> <strong>\u03c6A + \u03c6F = (2n+1)\u03c0<\/strong><\/p><\/li><\/ol><p>\"(\u300a\u4e16\u754c\u4eba\u6743\u5ba3\u8a00\u300b) <strong>\u76f8\u79fb<\/strong> \u5faa\u73af\u4e2d\u7684\u6570\u636e\u6765\u81ea\u591a\u4e2a\u6765\u6e90\uff1a<br \/>\u2714 <strong>\u4f20\u8f93\u7535\u7f06\u4e2d\u7684\u5bc4\u751f\u7535\u5bb9 (C1) \u548c\u7535\u611f (L1)<\/strong><br \/>\u2714 <strong>\u8f93\u5165\u7535\u8def\u4e2d\u7684\u4f4e\u901a\u6ee4\u6ce2\u5668\u5143\u4ef6\uff08L2\u3001C2<\/strong><br \/>\u2714 <strong>\u8f93\u51fa\u7535\u8def\u4e2d\u7684\u6ee4\u6ce2\u7535\u5bb9\u5668<\/strong><\/p><p>\u5982\u679c <strong>\u603b\u76f8\u79fb\u8fbe\u5230 180<\/strong>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u53ef\u80fd\u4f1a\u53d1\u751f\u81ea\u632f\u3002<\/p><hr \/><h2><strong>3.\u5982\u4f55\u9632\u6b62\u632f\u8361\uff1f<\/strong><\/h2><p>\u9632\u6b62\u632f\u8361\u3001 <strong>\u4e0a\u8ff0\u4e24\u4e2a\u6761\u4ef6\u4e4b\u4e00\u5fc5\u987b\u4e0d\u6ee1\u8db3<\/strong> \u5728\u5de5\u4f5c\u9891\u7387\u8303\u56f4\u5185\u3002<\/p><figure style=\"width: 417px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"size-medium\" src=\"\/wp-content\/uploads\/2023\/06\/self-excited-oscilation-factor.webp\" alt=\"\u56fe 2 \u65e0\u632f\u8361\u8d1f\u53cd\u9988\u56de\u8def\u7684\u6761\u4ef6\" width=\"417\" height=\"415\" \/><figcaption class=\"wp-caption-text\">\u56fe 2 \u65e0\u632f\u8361\u8d1f\u53cd\u9988\u56de\u8def\u7684\u6761\u4ef6<\/figcaption><\/figure><p>\u5982\u56fe\u6240\u793a <strong>\u56fe 2<\/strong>\uff0c\u8003\u8651\u4e86\u4e24\u4e2a\u4e34\u754c\u9891\u7387\uff1a<\/p><ul><li><p><strong>fc\uff1a<\/strong> \u73af\u8def\u589e\u76ca\u7684\u9891\u7387 <strong>|AF| \u964d\u81f3 0 dB<\/strong>.<\/p><\/li><li><p><strong>fo\uff1a<\/strong> \u73af\u8def\u76f8\u79fb\u8d85\u8fc7 <strong>-180\u00b0<\/strong>.<\/p><\/li><\/ul><p>\u4e3a\u4e86\u4fdd\u6301\u7a33\u5b9a <strong>\u589e\u76ca\u5e94\u4f4e\u4e8e 0 dB<\/strong> \u76f8\u79fb\u8fbe\u5230 -180\u00b0\u3002<\/p><hr \/><h2><strong>4.\u7535\u6d41\u8f93\u51fa\u4fe1\u53f7\u4e3a\u4f55\u66f4\u7a33\u5b9a<\/strong><\/h2><figure style=\"width: 600px\" class=\"wp-caption alignnone\"><img decoding=\"async\" class=\"size-medium\" src=\"\/wp-content\/uploads\/2023\/06\/current-signal-feedback-path.webp\" alt=\"\u56fe 3 \u7535\u6d41\u6e90\u53cd\u9988\u56de\u8def\" width=\"600\" height=\"406\" \/><figcaption class=\"wp-caption-text\">\u56fe 3 \u7535\u6d41\u6e90\u53cd\u9988\u56de\u8def<\/figcaption><\/figure><figure style=\"width: 586px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"\/wp-content\/uploads\/2023\/06\/voltage-signal-feedback-path.webp\" alt=\"\u56fe 4 \u7535\u538b\u6e90\u53cd\u9988\u56de\u8def\" width=\"586\" height=\"425\" \/><figcaption class=\"wp-caption-text\">\u56fe 4 \u7535\u538b\u6e90\u53cd\u9988\u56de\u8def<\/figcaption><\/figure><p><strong>\u7535\u6d41\u4fe1\u53f7\u8f93\u51fa\u7535\u8def<\/strong> \u56e0\u4e3a<br \/>\u2714 <strong>\u5176\u53cd\u9988\u8def\u5f84\u4ec5\u9650\u4e8e\u5185\u90e8\u5143\u4ef6<\/strong> \u5982\u56fe <strong>\u56fe 3<\/strong>).<br \/>\u2714 <strong>\u5916\u90e8\u8d1f\u8f7d\u53d8\u5316\u5bf9\u76f8\u79fb\u6216\u589e\u76ca\u7684\u5f71\u54cd\u5f88\u5c0f<\/strong>.<\/p><p>\u76f8\u6bd4\u4e4b\u4e0b <strong>\u7535\u538b\u8f93\u51fa\u7535\u8def<\/strong> (\u56fe 4\uff09\u4ece <strong>\u8f93\u51fa\u70b9<\/strong>\u4e5f\u5c31\u662f\u8bf4 <strong>\u5916\u90e8\u7535\u7f06\u548c\u91c7\u6837\u7535\u8def<\/strong> \u4f1a\u5f71\u54cd\u76f8\u79fb\u548c\u589e\u76ca\u3002\u5982\u679c\u5b83\u4eec\u7684\u53c2\u6570\u53d1\u751f\u53d8\u5316\uff0c\u7cfb\u7edf <strong>\u53ef\u6ee1\u8db3\u632f\u8361\u6761\u4ef6<\/strong>\u5bfc\u81f4\u4e0d\u7a33\u5b9a\u3002<\/p><hr \/><h3><strong>5 \u7ed3\u8bba<\/strong><\/h3><p>\u5f53\u51fa\u73b0\u4ee5\u4e0b\u60c5\u51b5\u65f6\uff0c\u7535\u538b\u578b\u8f93\u51fa\u4fe1\u53f7\u4f1a\u53d1\u751f\u632f\u8361\uff1a<br \/>\u2714 <strong>\u5bc4\u751f\u5143\u4ef6\u4f1a\u4ea7\u751f 180\u00b0 \u7684\u76f8\u79fb\u3002<\/strong><br \/>\u2714 <strong>\u5728\u6b64\u76f8\u79fb\u8fc7\u7a0b\u4e2d\uff0c\u73af\u8def\u589e\u76ca\u4ecd\u5927\u4e8e 1\u3002<\/strong><\/p><p>\u907f\u514d\u632f\u8361\uff1a<br \/>\u2714 <strong>\u786e\u4fdd\u5728\u76f8\u79fb\u8fbe\u5230 180\u00b0\u4e4b\u524d\u5c06\u73af\u8def\u589e\u76ca\u964d\u81f3 0 dB \u4ee5\u4e0b\u3002<\/strong><br \/>\u2714 <strong>\u5c3d\u91cf\u51cf\u5c11\u4f20\u8f93\u7535\u7f06\u4e2d\u7684\u5bc4\u751f\u7535\u5bb9\/\u7535\u611f\u3002<\/strong><br \/>\u2714 <strong>\u4f7f\u7528\u9002\u5f53\u7684\u6ee4\u6ce2\u6765\u7a33\u5b9a\u53cd\u9988\u56de\u8def\u3002<\/strong><\/p><p>\u76f8\u6bd4\u4e4b\u4e0b <strong>\u7535\u6d41\u578b\u8f93\u51fa<\/strong> \u66f4\u7a33\u5b9a\uff0c\u56e0\u4e3a\u5b83\u4eec <strong>\u53cd\u9988\u56de\u8def\u53d7\u5916\u90e8\u8d1f\u8f7d\u6761\u4ef6\u7684\u5f71\u54cd\u8f83\u5c0f<\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>\u00a0 1. \u7535\u538b\u4fe1\u53f7\u4f20\u8f93\u8def\u5f84 \u5982\u56fe 1 \u6240\u793a\uff0c\u7535\u538b\u4fe1\u53f7\u4f20\u8f93\u7cfb\u7edf\u7531\u4e09\u4e2a\u5173\u952e\u7ec4\u4ef6\u6784\u6210\uff1a\u8d1f\u53cd\u9988\u7535\u538b\u8f93\u51fa\u7535\u8def\u3001\u4fe1\u53f7\u4f20\u8f93\u7535\u7f06\uff08\u5305\u62ec\u5bc4\u751f\u7535\u5bb9 (C1) \u548c\u5bc4\u751f\u7535\u611f (L1)\uff0c\u5176\u503c\u53d6\u51b3\u4e8e\u7535\u7f06\u957f\u5ea6\u548c\u5e03\u7ebf\u5e03\u5c40\uff09\u3001\u8f93\u5165\u4fe1\u53f7\u91c7\u96c6\u7535\u8def\uff08\u53ef\u80fd\u5305\u62ec\u4f4e\u901a\u6ee4\u6ce2\u5668 (L2, [\u2026]\uff09\u3002<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_theme","format":"standard","meta":{"_acf_changed":true,"footnotes":""},"categories":[8],"tags":[49],"class_list":["post-5380","post","type-post","status-publish","format-standard","hentry","category-ta-acutator","tag-input-signal"],"acf":[],"_links":{"self":[{"href":"https:\/\/dclcontrols.com\/zh_cn\/wp-json\/wp\/v2\/posts\/5380","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dclcontrols.com\/zh_cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dclcontrols.com\/zh_cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dclcontrols.com\/zh_cn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dclcontrols.com\/zh_cn\/wp-json\/wp\/v2\/comments?post=5380"}],"version-history":[{"count":0,"href":"https:\/\/dclcontrols.com\/zh_cn\/wp-json\/wp\/v2\/posts\/5380\/revisions"}],"wp:attachment":[{"href":"https:\/\/dclcontrols.com\/zh_cn\/wp-json\/wp\/v2\/media?parent=5380"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dclcontrols.com\/zh_cn\/wp-json\/wp\/v2\/categories?post=5380"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dclcontrols.com\/zh_cn\/wp-json\/wp\/v2\/tags?post=5380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}