{"id":24,"date":"2024-04-04T03:04:45","date_gmt":"2024-04-04T00:04:45","guid":{"rendered":"https:\/\/sisu.ut.ee\/elektroonika\/64-mooteriista-sisetakistus\/"},"modified":"2024-04-04T03:05:54","modified_gmt":"2024-04-04T00:05:54","slug":"64-mooteriista-sisetakistus","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/elektroonika\/64-mooteriista-sisetakistus\/","title":{"rendered":"6.4. M\u00f5\u00f5teriista sisetakistus"},"content":{"rendered":"<p><span>Senistes loengutes oleme multimeetriga m\u00f5\u00f5tnud pinget, voolutugevust ja takistust ning olnud kindel, et m\u00f5\u00f5teriist n\u00e4itab \u00f5igesti. Selles loengus n\u00e4itame, mis juhtudel ei tohi multimeetri n\u00e4itu uskuda, vaid peab arvestama tema sisetakistusega. Selleks esitame paar n\u00e4idet, kus paistab selgesti, et multimeeter valetab. Tegelikult on multimeeter samuti \u00fcks elektroonikaseade, millel on sees pealt n\u00e4htamatu takistus, mida nimetatakse sisetakistuseks. Multimeeter n\u00e4itab \u00f5iget pinget, aga multimeetri k\u00fclge \u00fchendamine muudab pinged vooluringis teiseks.<\/span><\/p>\n<p style=\"text-align: center\"><\/p><div class=\"ratio ratio-16x9 mb-3\"><div class=\"video-placeholder-wrapper video-placeholder-wrapper--16x9\">\n\t\t\t    <div class=\"video-placeholder d-flex justify-content-center align-items-center\">\n\t\t\t        <div class=\"overlay text-white p-2 w-100 text-center d-block justify-content-center align-items-center\">\n\t\t\t            <div>Kolmandate osapoolte sisu n\u00e4gemiseks palun n\u00f5ustu k\u00fcpsistega.<\/div>\n\t\t\t            <button class=\"btn btn-secondary btn-sm mt-1 consent-change\">Muuda n\u00f5usolekut<\/button>\n\t\t\t        <\/div>\n\t\t\t    <\/div>\n\t\t\t<\/div>\n<\/div>\n<p style=\"text-align: center\"><a href=\"https:\/\/youtu.be\/xFLSFuYcqio\" target=\"_blank\" rel=\"noopener\">https:\/\/youtu.be\/xFLSFuYcqio<\/a><\/p>\n<p><span><span>\u00a0<\/span><\/span><\/p>\n<p>Praktilise t\u00f6\u00f6 jaoks vajad j\u00e4rgmisi vahendeid:<\/p>\n<ul>\n<li>multimeeter<\/li>\n<li>makettplaat<\/li>\n<li>vooluallikas<\/li>\n<li>takistid<\/li>\n<li>diood<\/li>\n<li>LED<\/li>\n<\/ul>\n<h5><img loading=\"lazy\" decoding=\"async\" width=\"40\" height=\"40\" class=\"alignnone wp-image-79\" style=\"margin-left: 10px;margin-right: 10px\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/189\/katse.png\" title=\"katse.png\" alt=\"katse.png\">\u00a0Tee kaasa!<\/h5>\n<ol>\n<li>Ampermeetri sisetakistus hakkab m\u00f5ju avaldama alles k\u00fcllalt suurte voolutugevuste korral. See m\u00f5\u00f5tmine tuleb teha kiiresti, sest takistid ja multimeeter l\u00e4hevad v\u00e4ga ruttu kuumaks ja v\u00f5ivad l\u00e4bi p\u00f5leda. Kui sa ei tunne ennast t\u00e4iesti kindlalt, siis v\u00f5id ampermeetri sisetakistuse m\u00f5\u00f5tmise vahele j\u00e4tta.<\/li>\n<li>M\u00f5\u00f5da \u00e4ra oma multimeetri sisetakistused voltmeetri re\u017eiimis kahes sagedamini kasutatavas piirkonnas. Kirjuta saadud v\u00e4\u00e4rtused \u00fcles juhuks, kui kunagi vaja peaks minema.<\/li>\n<\/ol>\n<p><\/p><div class=\"accordion mb-3\">\n        <div class=\"accordion-item accordion-item--white\">\n        <h2 class=\"accordion-header\" id=\"accordion-69e46eb22d804-heading\">\n            <button class=\"accordion-button collapsed\" type=\"button\" data-bs-toggle=\"collapse\" data-bs-target=\"#accordion-69e46eb22d804-collapse\" aria-expanded=\"true\" aria-controls=\"accordion-69e46eb22d804-collapse\">Vastus<\/button>\n        <\/h2>\n        <div id=\"accordion-69e46eb22d804-collapse\" class=\"accordion-collapse collapse\" aria-labelledby=\"accordion-69e46eb22d804-heading\">\n            <div class=\"accordion-body\">\n<p><span>Voltmeetri sisetakistused peaks olema umbes samas suurusj\u00e4rgus, kui n\u00e4idatud selles videos. Parematel ja kallimatel multimeetritel on sisetakistused \u00fcldiselt suuremad. Mida suurem sisetakistus, seda parem voltmeeter.<\/span><\/p>\n<p><span><\/span><\/p><\/div>\n        <\/div>\n        <\/div>\n    <\/div>\n<h5><span><img loading=\"lazy\" decoding=\"async\" width=\"40\" height=\"40\" class=\"alignnone wp-image-78\" style=\"margin-left: 10px;margin-right: 10px\" src=\"https:\/\/sisu.ut.ee\/wp-content\/uploads\/sites\/189\/tahtis.png\" title=\"tahtis.png\" alt=\"tahtis.png\">\u00a0J\u00e4ta meelde!<\/span><\/h5>\n<p><strong>Kui m\u00f5\u00f5ta pingelangu v\u00e4ga suure takistusega takistil, siis tuleb arvestada voltmeetri sisetakistusega.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Senistes loengutes oleme multimeetriga m\u00f5\u00f5tnud pinget, voolutugevust ja takistust ning olnud kindel, et m\u00f5\u00f5teriist n\u00e4itab \u00f5igesti. Selles loengus n\u00e4itame, mis juhtudel ei tohi multimeetri n\u00e4itu uskuda, vaid peab arvestama tema sisetakistusega. Selleks esitame paar n\u00e4idet, kus paistab selgesti, et multimeeter &#8230;<\/p>\n","protected":false},"author":93,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-24","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/pages\/24","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/users\/93"}],"replies":[{"embeddable":true,"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/comments?post=24"}],"version-history":[{"count":1,"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/pages\/24\/revisions"}],"predecessor-version":[{"id":253,"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/pages\/24\/revisions\/253"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/media?parent=24"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}