{"id":34,"date":"2024-04-04T03:04:46","date_gmt":"2024-04-04T00:04:46","guid":{"rendered":"https:\/\/sisu.ut.ee\/elektroonika\/49-piesovaljuhaaldi\/"},"modified":"2024-04-04T03:05:54","modified_gmt":"2024-04-04T00:05:54","slug":"49-piesovaljuhaaldi","status":"publish","type":"page","link":"https:\/\/sisu.ut.ee\/elektroonika\/49-piesovaljuhaaldi\/","title":{"rendered":"4.9. Piesovaljuh\u00e4\u00e4ldi"},"content":{"rendered":"<p>Piesoelektriline efekt on m\u00f5nede materjalide, n\u00e4iteks kvartskristalli omadus, mille puhul tema kokkusurumisel tekib kokkusurutavate tahkude vahel elektripinge. Sellel p\u00f5him\u00f5ttel t\u00f6\u00f6tavad n\u00e4iteks grammofoni helipead, kitarri helipead, piesomikrofonid, m\u00f5ned tulemasinad jne.<\/p>\n<p>Vastupidist efekti, mille puhul samale kristallile pinge rakendamisel kristalli paksus muutub, kasutatakse piesovaljuh\u00e4\u00e4ldites, aga ka n\u00e4iteks tindiprinteri pumpades. Piesovaljuh\u00e4\u00e4ldi on v\u00e4ga \u00f5huke ja teda on lihtne masstootmises valmistada, kuna tal puuduvad liikuvad osad. Piesovaljuh\u00e4\u00e4ldi miinuseks on see, et ta ei suuda tekitada madalaid helisid.\u00a0<\/p>\n<p>Selles loengus r\u00e4\u00e4gime piesovaljuh\u00e4\u00e4ldist ja selle t\u00f6\u00f6p\u00f5him\u00f5ttest ning n\u00e4itame, kuidas Schmitti trigeriga multivibraatori ja piesovaljuh\u00e4\u00e4ldi abil piiksuv elektroonikaskeem teha.<\/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><br><a href=\"https:\/\/youtu.be\/2Ad6rK1Mmhw\" target=\"_blank\" rel=\"noopener\"><\/a>\n<p style=\"text-align: center\"><a href=\"https:\/\/youtu.be\/2Ad6rK1Mmhw\" target=\"_blank\" rel=\"noopener\">https:\/\/youtu.be\/2Ad6rK1Mmhw<\/a><\/p>\n<p style=\"text-align: left\">Praktilise t\u00f6\u00f6 jaoks vajad j\u00e4rgmisi vahendeid:<\/p>\n<ul>\n<li>Schmitti trigeriga multivibraator makettplaadil<\/li>\n<li>piesovaljuh\u00e4\u00e4ldi<\/li>\n<li>mingi plekist karbike<\/li>\n<li>nutitelefon<\/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<p>Tee multivibraatori ja piesovaljuh\u00e4\u00e4ldi abil kindlaks k\u00f5ige k\u00f5rgem sagedus, mida sa kuuled.<\/p>\n<h5><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!<\/h5>\n<p><strong>Piesovaljuh\u00e4\u00e4ldi teeb edukalt k\u00f5rge sagedusega helisid kuni ultrahelini v\u00e4lja, aga ei tee madalaid helisid.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Piesoelektriline efekt on m\u00f5nede materjalide, n\u00e4iteks kvartskristalli omadus, mille puhul tema kokkusurumisel tekib kokkusurutavate tahkude vahel elektripinge. Sellel p\u00f5him\u00f5ttel t\u00f6\u00f6tavad n\u00e4iteks grammofoni helipead, kitarri helipead, piesomikrofonid, m\u00f5ned tulemasinad jne. Vastupidist efekti, mille puhul samale kristallile pinge rakendamisel kristalli paksus muutub, &#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-34","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/pages\/34","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=34"}],"version-history":[{"count":1,"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/pages\/34\/revisions"}],"predecessor-version":[{"id":234,"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/pages\/34\/revisions\/234"}],"wp:attachment":[{"href":"https:\/\/sisu.ut.ee\/elektroonika\/wp-json\/wp\/v2\/media?parent=34"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}