{"id":497,"date":"2022-05-13T08:51:00","date_gmt":"2022-05-13T08:51:00","guid":{"rendered":"https:\/\/copperfiction.com\/?p=497"},"modified":"2026-04-09T21:49:47","modified_gmt":"2026-04-09T21:49:47","slug":"isolated-mains-voltage-probe-for-oscilloscope","status":"publish","type":"post","link":"https:\/\/copperfiction.com\/index.php\/2022\/05\/13\/isolated-mains-voltage-probe-for-oscilloscope\/","title":{"rendered":"[021] ISOLATED MAINS VOLTAGE PROBE FOR OSCILLOSCOPE"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"400\" src=\"https:\/\/copperfiction.com\/wp-content\/uploads\/2026\/04\/image1-18.png\" alt=\"\" class=\"wp-image-498\" srcset=\"https:\/\/copperfiction.com\/wp-content\/uploads\/2026\/04\/image1-18.png 900w, https:\/\/copperfiction.com\/wp-content\/uploads\/2026\/04\/image1-18-300x133.png 300w, https:\/\/copperfiction.com\/wp-content\/uploads\/2026\/04\/image1-18-768x341.png 768w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p>Measuring 230 VAC directly on a scope, without the right interface, is either dangerous or useless. That&#8217;s what this probe is for.<\/p>\n\n\n\n<p>It provides full galvanic isolation between the measurement side and the oscilloscope input \u2014 which is usually earth-referenced. It preserves enough signal fidelity for meaningful waveform analysis while staying robust enough for repeated bench use.<\/p>\n\n\n\n<p>Everything is packaged inside a dedicated enclosure, making it a real lab instrument rather than a bare circuit on a desk. It&#8217;s the kind of tool you build once and use on every project involving mains: switching power supplies, protection circuits, sensing stages, anything that has to survive and behave correctly at 230 VAC. Worth every hour spent building it.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Measuring 230 VAC directly on a scope, without the right interface, is either dangerous or useless. That&#8217;s what this probe is for. It provides full galvanic isolation between the measurement side and the oscilloscope input \u2014 which is usually earth-referenced. It preserves enough signal fidelity for meaningful waveform analysis while staying robust enough for repeated &#8230; <a title=\"[021] ISOLATED MAINS VOLTAGE PROBE FOR OSCILLOSCOPE\" class=\"read-more\" href=\"https:\/\/copperfiction.com\/index.php\/2022\/05\/13\/isolated-mains-voltage-probe-for-oscilloscope\/\" aria-label=\"Read more about [021] ISOLATED MAINS VOLTAGE PROBE FOR OSCILLOSCOPE\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[83],"tags":[62,96,95],"class_list":["post-497","post","type-post","status-publish","format-standard","hentry","category-83","tag-230vac","tag-oscilloscope","tag-voltage-sensor"],"_links":{"self":[{"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/posts\/497","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/comments?post=497"}],"version-history":[{"count":5,"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/posts\/497\/revisions"}],"predecessor-version":[{"id":629,"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/posts\/497\/revisions\/629"}],"wp:attachment":[{"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/media?parent=497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/categories?post=497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/copperfiction.com\/index.php\/wp-json\/wp\/v2\/tags?post=497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}