{"id":15648,"date":"2026-01-06T17:36:13","date_gmt":"2026-01-06T09:36:13","guid":{"rendered":"http:\/\/www.erun-tech.com\/?post_type=dt_portfolio&#038;p=15648"},"modified":"2026-01-06T17:36:13","modified_gmt":"2026-01-06T09:36:13","slug":"dianganqishibieyuceliangzhinangankangjisuangongshiceliangfangfayufuhaowaixing","status":"publish","type":"dt_portfolio","link":"http:\/\/www.erun-tech.com\/vi\/project\/dianganqishibieyuceliangzhinangankangjisuangongshiceliangfangfayufuhaowaixing","title":{"rendered":"H\u01b0\u1edbng d\u1eabn nh\u1eadn d\u1ea1ng v\u00e0 \u0111o l\u01b0\u1eddng cu\u1ed9n c\u1ea3m: C\u00f4ng th\u1ee9c t\u00ednh \u0111i\u1ec7n c\u1ea3m, ph\u01b0\u01a1ng ph\u00e1p \u0111o l\u01b0\u1eddng v\u00e0 k\u00fd hi\u1ec7u h\u00ecnh d\u1ea1ng"},"content":{"rendered":"<div style=\"font-family: 'Segoe UI', Arial, sans-serif; line-height: 1.8; color: #333; max-width: 1100px; margin: 0 auto; background: #fff; padding: 20px;\">\n<div style=\"text-align: center; border-bottom: 5px solid #ef9308; padding-bottom: 30px; margin-bottom: 40px;\">\n<h1 style=\"color: #1f365c; font-size: 30px; margin-bottom: 10px; font-weight: bold;\">Th\u1ef1c h\u00e0nh c\u01a1 b\u1ea3n v\u1ec1 \u0111i\u1ec7n: Nh\u1eadn bi\u1ebft v\u00e0 \u0111o l\u01b0\u1eddng \u0111i\u1ec7n c\u1ea3m<\/h1>\n<div style=\"display: inline-block; background: #1f365c; color: #fff; padding: 6px 20px; border-radius: 4px; font-size: 14px; letter-spacing: 1px;\">\u0110\u00e0o t\u1ea1o k\u1ef9 n\u0103ng c\u01a1 b\u1ea3n v\u1ec1 \u0111i\u1ec7n t\u1eed v\u00e0 \u0111i\u1ec7n tr\u00ean t\u00e0u<\/div>\n<\/div>\n<section style=\"margin-bottom: 50px;\">\n<h2 style=\"background: #1f365c; color: #fff; padding: 12px 25px; border-left: 10px solid #ef9308; border-radius: 4px; font-size: 20px;\">I. Kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u1ec1 \u0111i\u1ec7n c\u1ea3m<\/h2>\n<div style=\"margin-top: 25px; padding: 0 15px;\">\n<p style=\"text-indent: 2em; margin-bottom: 15px;\">Cu\u1ed9n c\u1ea3m, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 linh ki\u1ec7n c\u1ea3m \u1ee9ng, l\u00e0 m\u1ed9t lo\u1ea1i linh ki\u1ec7n l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng, c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i n\u0103ng l\u01b0\u1ee3ng \u0111i\u1ec7n th\u00e0nh n\u0103ng l\u01b0\u1ee3ng t\u1eeb v\u00e0 l\u01b0u tr\u1eef n\u00f3. Trong m\u1ea1ch \u0111i\u1ec7n, cu\u1ed9n c\u1ea3m ch\u1ee7 y\u1ebfu c\u00f3 ch\u1ee9c n\u0103ng ph\u00e2n t\u1ea7n, l\u1ecdc v\u00e0 c\u1ed9ng h\u01b0\u1edfng. T\u00f9y theo c\u1ea5u tr\u00fac v\u00e0 m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng, cu\u1ed9n c\u1ea3m \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c lo\u1ea1i ch\u00ednh sau:<\/p>\n<div style=\"display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 25px;\">\n<div style=\"background: #f8f9fa; padding: 15px; border-radius: 6px; border-left: 4px solid #1f365c;\"><strong>\u25cf Cu\u1ed9n c\u1ea3m th\u00f4ng th\u01b0\u1eddng (cu\u1ed9n c\u1ea3m c\u1ed1 \u0111\u1ecbnh):<\/strong>Bao g\u1ed3m cu\u1ed9n c\u1ea3m v\u00f2ng m\u00e0u v\u00e0 cu\u1ed9n c\u1ea3m m\u00e3 m\u00e0u.<\/div>\n<div style=\"background: #f8f9fa; padding: 15px; border-radius: 6px; border-left: 4px solid #ef9308;\"><strong>\u25cf Cu\u1ed9n c\u1ea3m c\u00f3 l\u00f5i t\u1eeb:<\/strong>Bao g\u1ed3m cu\u1ed9n c\u1ea3m thanh t\u1eeb v\u00e0 cu\u1ed9n c\u1ea3m v\u00f2ng t\u1eeb.<\/div>\n<\/div>\n<div style=\"text-align: center; margin-top: 20px; background: #fff; border: 1px solid #eee; padding: 20px; border-radius: 8px;\">\n<div id=\"attachment_15649\" style=\"width: 717px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-15649\" class=\"wp-image-15649\" title=\"H\u00ecnh 12-5 K\u00fd hi\u1ec7u v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a cu\u1ed9n c\u1ea3m\" src=\"http:\/\/www.erun-tech.com\/wp-content\/uploads\/2026\/01\/2fc90311a6a32282e119ab5d5d088030.png\" alt=\"H\u00ecnh 12-5 K\u00fd hi\u1ec7u v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a cu\u1ed9n c\u1ea3m\" width=\"707\" height=\"574\" srcset=\"http:\/\/www.erun-tech.com\/wp-content\/uploads\/2026\/01\/2fc90311a6a32282e119ab5d5d088030.png 1074w, http:\/\/www.erun-tech.com\/wp-content\/uploads\/2026\/01\/2fc90311a6a32282e119ab5d5d088030-300x244.png 300w, http:\/\/www.erun-tech.com\/wp-content\/uploads\/2026\/01\/2fc90311a6a32282e119ab5d5d088030-1024x831.png 1024w, http:\/\/www.erun-tech.com\/wp-content\/uploads\/2026\/01\/2fc90311a6a32282e119ab5d5d088030-768x624.png 768w, http:\/\/www.erun-tech.com\/wp-content\/uploads\/2026\/01\/2fc90311a6a32282e119ab5d5d088030-15x12.png 15w, http:\/\/www.erun-tech.com\/wp-content\/uploads\/2026\/01\/2fc90311a6a32282e119ab5d5d088030-600x487.png 600w\" sizes=\"(max-width: 707px) 100vw, 707px\" \/><p id=\"caption-attachment-15649\" class=\"wp-caption-text\">H\u00ecnh 12-5 K\u00fd hi\u1ec7u v\u00e0 h\u00ecnh d\u1ea1ng c\u1ee7a cu\u1ed9n c\u1ea3m<\/p><\/div>\n<\/div>\n<\/div>\n<\/section>\n<section style=\"margin-bottom: 40px;\">\n<h2 style=\"background: #1f365c; color: #fff; padding: 12px 25px; border-left: 10px solid #ef9308; border-radius: 4px; font-size: 20px;\">II. Ph\u01b0\u01a1ng ph\u00e1p \u0111o \u0111i\u1ec7n c\u1ea3m<\/h2>\n<div style=\"margin-top: 25px; padding: 0 15px;\">\n<div style=\"background: #f0f4f8; padding: 25px; border-radius: 12px; border: 1px solid #d1d9e6;\">\n<p><strong>(1) \u0110o s\u1ef1 th\u00f4ng su\u1ed1t c\u1ee7a cu\u1ed9n d\u00e2y c\u1ea3m \u1ee9ng:<\/strong>S\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng \u0111\u1ec3 ki\u1ec3m tra tr\u1ef1c ti\u1ebfp xem cu\u1ed9n d\u00e2y c\u00f3 b\u1ecb \u0111\u1ee9t m\u1ea1ch hay kh\u00f4ng.<\/p>\n<p><strong>(2) Ph\u1ea3n h\u1ed3i \u0111\u1ed9ng c\u1ee7a gi\u00e1 tr\u1ecb c\u1ea3m \u1ee9ng:<\/strong>Khi s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng kim, c\u00f3 th\u1ec3 \u0111\u00e1nh gi\u00e1 s\u01a1 b\u1ed9 b\u1eb1ng c\u00e1ch quan s\u00e1t ph\u1ea3n \u1ee9ng chuy\u1ec3n \u0111\u1ed9ng nh\u1ecf c\u1ee7a kim khi ng\u1eaft m\u1ea1ch trong ch\u1ed1c l\u00e1t.<\/p>\n<p><strong>(3) Ph\u01b0\u01a1ng ph\u00e1p c\u1ea3m kh\u00e1ng \u0111\u1ec3 t\u00ednh gi\u00e1 tr\u1ecb c\u1ea3m \u1ee9ng:<\/strong><\/p>\n<p style=\"padding-left: 20px; border-left: 4px solid #ef9308; background: #fff; padding: 15px; margin: 15px 0;\">K\u1ebft n\u1ed1i m\u1ed9t \u0111i\u1ec7n tr\u1edf, c\u1ea5p \u0111i\u1ec7n xoay chi\u1ec1u, \u0111o \u0111i\u1ec7n \u00e1p tr\u00ean cu\u1ed9n c\u1ea3m v\u00e0 d\u00f2ng \u0111i\u1ec7n \u0111i qua, t\u00ednh to\u00e1n \u0111i\u1ec7n c\u1ea3m XL c\u1ee7a cu\u1ed9n c\u1ea3m b\u1eb1ng \u0111\u1ecbnh lu\u1eadt Ohm. Sau \u0111\u00f3 t\u00ednh to\u00e1n gi\u00e1 tr\u1ecb \u0111i\u1ec7n c\u1ea3m theo c\u00f4ng th\u1ee9c sau:<\/p>\n<div style=\"text-align: center; background: #fff; padding: 20px; border-radius: 8px; margin: 20px 0; border: 1px solid #eee; font-size: 1.2em;\">XL=wL=2\u03c0fL<\/div>\n<div style=\"background: #fff; padding: 15px; border-radius: 6px; font-size: 14px;\">\n<p style=\"margin-bottom: 5px;\"><strong>Trong c\u00f4ng th\u1ee9c:<\/strong><\/p>\n<ul style=\"list-style: none; padding-left: 10px;\">\n<li>X,\u2014\u2014 \u0110i\u1ec7n tr\u1edf c\u1ea3m \u1ee9ng, \u0111\u01a1n v\u1ecb l\u00e0 ohm (\u03a9);\n<p>w\u2014\u2014 T\u1ea7n s\u1ed1 g\u00f3c c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n, \u0111\u01a1n v\u1ecb l\u00e0 radian\/gi\u00e2y;<\/p>\n<p>f\u2014\u2014 T\u1ea7n s\u1ed1, \u0111\u01a1n v\u1ecb l\u00e0 hertz (Hz);<\/p>\n<p>L\u2014\u2014 \u0110i\u1ec7n c\u1ea3m cu\u1ed9n d\u00e2y, \u0111\u01a1n v\u1ecb l\u00e0 Henry (H).<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<div style=\"text-align: center; margin-top: 25px;\"><\/div>\n<\/div>\n<\/section>\n<div style=\"margin: 40px 15px 0; background: #1f365c; color: white; padding: 20px; border-radius: 8px;\"><strong style=\"color: #ef9308;\">\ud83d\udee1\ufe0f \u0110i\u1ec3m ch\u00ednh c\u1ee7a ho\u1ea1t \u0111\u1ed9ng c\u1ed1t l\u00f5i:<\/strong><\/p>\n<p style=\"margin: 5px 0 0 0; font-size: 14px;\">Khi \u0111o cu\u1ed9n d\u00e2y c\u00f3 gi\u00e1 tr\u1ecb c\u1ea3m \u1ee9ng cao (nh\u01b0 cu\u1ed9n d\u00e2y bi\u1ebfn \u00e1p l\u1edbn), do c\u1ea3m \u1ee9ng c\u00f3 \u0111\u1eb7c t\u00ednh \u0111i\u1ec7n \u0111\u1ed9ng ng\u01b0\u1ee3c, c\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n \u00e1p cao trong kho\u1ea3nh kh\u1eafc ng\u1eaft k\u1ebft n\u1ed1i \u0111o. H\u00e3y ch\u00fa \u00fd \u0111\u1ebfn b\u1ea3o v\u1ec7 ph\u1ea1m vi \u0111o c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 an to\u00e0n v\u1eadn h\u00e0nh.<\/p>\n<\/div>\n<footer style=\"text-align: center; margin-top: 60px; padding-top: 30px; border-top: 1px solid #eee; color: #999; font-size: 13px;\">\u0110\u00e0o t\u1ea1o k\u1ef9 n\u0103ng c\u01a1 b\u1ea3n v\u1ec1 \u0111i\u1ec7n t\u1eed v\u00e0 \u0111i\u1ec7n tr\u00ean t\u00e0u | Ph\u1ea7n \u0111o l\u01b0\u1eddng c\u01a1 b\u1ea3n | Phi\u00ean b\u1ea3n s\u1eeda \u0111\u1ed5i n\u0103m 2026<\/footer>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Th\u1ef1c h\u00e0nh c\u01a1 b\u1ea3n v\u1ec1 \u0111i\u1ec7n: Nh\u1eadn bi\u1ebft v\u00e0 \u0111o l\u01b0\u1eddng c\u1ea3m \u1ee9ng \u0110\u00e0o t\u1ea1o k\u1ef9 n\u0103ng c\u01a1 b\u1ea3n v\u1ec1 \u0111i\u1ec7n t\u1eed v\u00e0 \u0111i\u1ec7n tr\u00ean t\u00e0u I. Kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u1ec1 c\u1ea3m \u1ee9ng C\u1ea3m \u1ee9ng, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 linh ki\u1ec7n c\u1ea3m \u1ee9ng, thu\u1ed9c lo\u1ea1i linh ki\u1ec7n l\u01b0u tr\u1eef n\u0103ng l\u01b0\u1ee3ng\u2026<\/p>","protected":false},"author":1,"featured_media":15650,"comment_status":"open","ping_status":"closed","template":"","dt_portfolio_category":[891],"dt_portfolio_tags":[],"class_list":["post-15648","dt_portfolio","type-dt_portfolio","status-publish","has-post-thumbnail","hentry","dt_portfolio_category-dianzidianqiyuanshicaopinggukecheng","dt_portfolio_category-891","description-off"],"_links":{"self":[{"href":"http:\/\/www.erun-tech.com\/vi\/wp-json\/wp\/v2\/dt_portfolio\/15648","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.erun-tech.com\/vi\/wp-json\/wp\/v2\/dt_portfolio"}],"about":[{"href":"http:\/\/www.erun-tech.com\/vi\/wp-json\/wp\/v2\/types\/dt_portfolio"}],"author":[{"embeddable":true,"href":"http:\/\/www.erun-tech.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.erun-tech.com\/vi\/wp-json\/wp\/v2\/comments?post=15648"}],"version-history":[{"count":1,"href":"http:\/\/www.erun-tech.com\/vi\/wp-json\/wp\/v2\/dt_portfolio\/15648\/revisions"}],"predecessor-version":[{"id":15651,"href":"http:\/\/www.erun-tech.com\/vi\/wp-json\/wp\/v2\/dt_portfolio\/15648\/revisions\/15651"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.erun-tech.com\/vi\/wp-json\/wp\/v2\/media\/15650"}],"wp:attachment":[{"href":"http:\/\/www.erun-tech.com\/vi\/wp-json\/wp\/v2\/media?parent=15648"}],"wp:term":[{"taxonomy":"dt_portfolio_category","embeddable":true,"href":"http:\/\/www.erun-tech.com\/vi\/wp-json\/wp\/v2\/dt_portfolio_category?post=15648"},{"taxonomy":"dt_portfolio_tags","embeddable":true,"href":"http:\/\/www.erun-tech.com\/vi\/wp-json\/wp\/v2\/dt_portfolio_tags?post=15648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}