{"id":6334,"date":"2021-03-28T22:19:06","date_gmt":"2021-03-28T22:19:06","guid":{"rendered":"https:\/\/ct1jqj.eu\/blog\/?p=6334"},"modified":"2021-03-28T22:19:06","modified_gmt":"2021-03-28T22:19:06","slug":"medicao-de-miliohm-pt-2","status":"publish","type":"post","link":"https:\/\/ct1jqj.eu\/?p=6334","title":{"rendered":"Medi\u00e7\u00e3o de miliohm (Pt. 2)"},"content":{"rendered":"<div class=\"pld-like-dislike-wrap pld-template-4\">\r\n    <div class=\"pld-like-wrap  pld-common-wrap\">\r\n    <a href=\"javascript:void(0)\" class=\"pld-like-trigger pld-like-dislike-trigger  \" title=\"\" data-post-id=\"6334\" data-trigger-type=\"like\" data-restriction=\"cookie\" data-already-liked=\"0\">\r\n                        <i class=\"far fa-smile\"><\/i>\r\n                    <\/a>\r\n    <span class=\"pld-like-count-wrap pld-count-wrap\">    <\/span>\r\n<\/div><div class=\"pld-dislike-wrap  pld-common-wrap\">\r\n    <a href=\"javascript:void(0)\" class=\"pld-dislike-trigger pld-like-dislike-trigger  \" title=\"\" data-post-id=\"6334\" data-trigger-type=\"dislike\" data-restriction=\"cookie\" data-already-liked=\"0\">\r\n                        <i class=\"far fa-frown\"><\/i>\r\n                    <\/a>\r\n    <span class=\"pld-dislike-count-wrap pld-count-wrap\"><\/span>\r\n<\/div><\/div><p style=\"text-align: justify;\">N\u00e3o necessariamente uma parte 2 do artigo anterior, j\u00e1 que pelos testes n\u00e3o me mereceu confian\u00e7a, mas sim uma nova abordagem, que ser\u00e1 feita de uma maneira mais &#8220;tradicional&#8221;. J\u00e1 n\u00e3o me lembro de onde retirei esta ideia, visto que arranjei alguma literatura sobre medi\u00e7\u00e3o de resist\u00eancias muito baixas, mas basicamente s\u00e3o usadas duas fontes de corrente de 1mA e 10mA, que s\u00e3o injectadas na\u00a0resist\u00eancia que queremos medir. Ap\u00f3s isso a queda de tens\u00e3o na resist\u00eancia \u00e9 amplificada 100x e o sinal ir\u00e1 estar presente na sa\u00edda na forma de 1\u03a9\/V ou 10\u03a9\/V. Esse sinal poder\u00e1 ser ligado a um m\u00f3dulo voltim\u00e9trico de painel de 3 \u00bd d\u00edgitos ou 4 \u00bd d\u00edgitos, ou ainda ligado a um mult\u00edmetro convencional na escala de 0-2V. Em rela\u00e7\u00e3o a isso ainda irei verificar o que usar, porque se necessitar de ligar a um mult\u00edmetro o aparelho nunca ser\u00e1 aut\u00f3nomo, se usar um medidor de painel, j\u00e1 poderei ter um aparelho aut\u00f3nomo. Fotografias das fontes de corrente, perfeitamente alinhadas:<\/p>\n\n\t\t<style>\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 33%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-6334 gallery-columns-3 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/ct1jqj.eu\/?attachment_id=6335'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2021\/03\/photo_2021-03-28_22-58-02-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/ct1jqj.eu\/?attachment_id=6336'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/ct1jqj.eu\/wp-content\/uploads\/2021\/03\/photo_2021-03-28_22-58-06-1-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" \/><\/a>\n\t\t\t<\/dt><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n<p>73&#8217;s<\/p>\n","protected":false},"excerpt":{"rendered":"<p>N\u00e3o necessariamente uma parte 2 do artigo anterior, j\u00e1 que pelos testes n\u00e3o me mereceu confian\u00e7a, mas sim uma nova abordagem, que ser\u00e1 feita de uma maneira mais &#8220;tradicional&#8221;. J\u00e1 n\u00e3o me lembro de onde retirei esta ideia, visto que arranjei alguma literatura sobre medi\u00e7\u00e3o de resist\u00eancias muito baixas, mas basicamente s\u00e3o usadas duas fontes [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4346,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,6,9],"tags":[164,231],"class_list":["post-6334","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electronica","category-equipamento","category-ideias-para-projecto","tag-fonte-de-corrente","tag-miliohm"],"_links":{"self":[{"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/posts\/6334","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6334"}],"version-history":[{"count":0,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/posts\/6334\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=\/wp\/v2\/media\/4346"}],"wp:attachment":[{"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6334"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6334"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ct1jqj.eu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6334"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}