{"id":61831,"date":"2023-04-21T13:25:03","date_gmt":"2023-04-21T18:25:03","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/diy-transducer-speakers\/"},"modified":"2025-01-27T06:04:04","modified_gmt":"2025-01-27T11:04:04","slug":"diy-transducer-speakers","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/diy-transducer-speakers\/","title":{"rendered":"DIY reproduktory: V\u00fdroba vlastn\u00edch m\u011bni\u010d\u016f"},"content":{"rendered":"<p>DIY reproduktory s piezoelektrick\u00fdmi m\u011bni\u010di: pr\u016fvodce pro za\u010d\u00e1te\u010dn\u00edky<\/p>\n<p>Piezoelektrick\u00e9 m\u011bni\u010de, zn\u00e1m\u00e9 tak\u00e9 jako piezoelektrick\u00e9 bzu\u010d\u00e1ky, p\u0159edstavuj\u00ed dostupnou a relativn\u011b snadnou cestu k v\u00fdrob\u011b vlastn\u00edch reproduktor\u016f.  Na rozd\u00edl od tradi\u010dn\u00edch reproduktor\u016f s ku\u017eelov\u00fdmi membr\u00e1nami, tyto reproduktory vyu\u017e\u00edvaj\u00ed vibrace krystalu k produkci zvuku.  Tento \u010dl\u00e1nek poskytuje detailn\u00ed n\u00e1vod pro v\u00fdrobu jednoduch\u00e9ho, ale funk\u010dn\u00edho DIY reproduktoru s piezoelektrick\u00fdm m\u011bni\u010dem.<\/p>\n<h3>V\u00fdb\u011br piezoelektrick\u00e9ho m\u011bni\u010de<\/h3>\n<p>Nejd\u016fle\u017eit\u011bj\u0161\u00ed sou\u010d\u00e1st\u00ed projektu je v\u00fdb\u011br spr\u00e1vn\u00e9ho piezoelektrick\u00e9ho m\u011bni\u010de.  Kvalita zvuku z\u00e1vis\u00ed na jeho frekven\u010dn\u00ed odezv\u011b a citlivosti.  M\u011bni\u010de se li\u0161\u00ed v t\u00f3nu a hlasitosti, tak\u017ee experimentov\u00e1n\u00ed s r\u016fzn\u00fdmi typy m\u016f\u017ee b\u00fdt u\u017eite\u010dn\u00e9.  V\u011bt\u0161inou se daj\u00ed sehnat levn\u011b online nebo v elektronick\u00fdch obchodech.  P\u0159i v\u00fdb\u011bru je t\u0159eba zv\u00e1\u017eit tyto parametry:<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Parametr<\/th>\n<th>Popis<\/th>\n<th>Doporu\u010den\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Frekven\u010dn\u00ed rozsah<\/td>\n<td>Rozsah frekvenc\u00ed, kter\u00e9 m\u011bni\u010d dok\u00e1\u017ee reprodukovat<\/td>\n<td>\u0160irok\u00fd rozsah pro v\u011brn\u011bj\u0161\u00ed zvuk<\/td>\n<\/tr>\n<tr>\n<td>Citlivost<\/td>\n<td>Hlasitost zvuku p\u0159i dan\u00e9m nap\u011bt\u00ed<\/td>\n<td>Vy\u0161\u0161\u00ed citlivost pro hlasit\u011bj\u0161\u00ed zvuk<\/td>\n<\/tr>\n<tr>\n<td>Impedance<\/td>\n<td>Elektrick\u00fd odpor m\u011bni\u010de<\/td>\n<td>Zvolte impedance odpov\u00eddaj\u00edc\u00ed zesilova\u010di<\/td>\n<\/tr>\n<tr>\n<td>Velikost<\/td>\n<td>Fyzick\u00e9 rozm\u011bry m\u011bni\u010de<\/td>\n<td>Zvolte podle pot\u0159ebn\u00e9ho prostoru<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Konstrukce ozvu\u010dnice<\/h3>\n<p>Ozvu\u010dnice je d\u016fle\u017eit\u00e1 pro optimalizaci zvuku.  Jej\u00ed tvar a materi\u00e1l ovliv\u0148uj\u00ed frekven\u010dn\u00ed odezvu a minimalizuj\u00ed ne\u017e\u00e1douc\u00ed rezonance.  Pro jednoduch\u00fd DIY reproduktor posta\u010d\u00ed mal\u00e1 d\u0159ev\u011bn\u00e1 krabi\u010dka, nap\u0159\u00edklad z p\u0159ekli\u017eky.  Je d\u016fle\u017eit\u00e9, aby byla pevn\u00e1 a dob\u0159e ut\u011bsn\u011bn\u00e1, aby se minimalizovaly vibrace a \u00fanik zvuku.  Velikost ozvu\u010dnice by m\u011bla b\u00fdt p\u0159izp\u016fsobena velikosti a charakteristik\u00e1m pou\u017eit\u00e9ho piezoelektrick\u00e9ho m\u011bni\u010de. Experimentujte s r\u016fzn\u00fdmi tvary a materi\u00e1ly ozvu\u010dnice, abyste dos\u00e1hli optim\u00e1ln\u00edho zvuku.<\/p>\n<h3>Zapojen\u00ed elektroniky<\/h3>\n<p>Jednoduch\u00fd piezoelektrick\u00fd reproduktor lze zapojit p\u0159\u00edmo na v\u00fdstup zvukov\u00e9ho zdroje, jako je nap\u0159\u00edklad MP3 p\u0159ehr\u00e1va\u010d nebo po\u010d\u00edta\u010d.  Nicm\u00e9n\u011b pro dosa\u017een\u00ed lep\u0161\u00ed kvality zvuku a v\u011bt\u0161\u00ed hlasitosti je vhodn\u00e9 pou\u017e\u00edt zesilova\u010d.  Zesilova\u010d zv\u00fd\u0161\u00ed nap\u011bt\u00ed a proud dod\u00e1van\u00fd do m\u011bni\u010de, \u010d\u00edm\u017e se zv\u00fd\u0161\u00ed hlasitost a kvalita reprodukovan\u00e9ho zvuku.  Zapojen\u00ed je relativn\u011b jednoduch\u00e9, ale je nutn\u00e9 db\u00e1t na spr\u00e1vn\u00e9 polarizace m\u011bni\u010de, aby nedo\u0161lo k jeho po\u0161kozen\u00ed.  P\u0159i pou\u017eit\u00ed zesilova\u010de je pot\u0159eba zvolit takov\u00fd, kter\u00fd je kompatibiln\u00ed s impedanc\u00ed pou\u017eit\u00e9ho piezoelektrick\u00e9ho m\u011bni\u010de.<\/p>\n<h3>Mont\u00e1\u017e a testov\u00e1n\u00ed<\/h3>\n<p>Po sestaven\u00ed ozvu\u010dnice a zapojen\u00ed elektroniky je nutn\u00e9 pe\u010dliv\u011b namontovat piezoelektrick\u00fd m\u011bni\u010d do ozvu\u010dnice.  Upevn\u011bn\u00ed by m\u011blo b\u00fdt pevn\u00e9, ale z\u00e1rove\u0148 by nem\u011blo br\u00e1nit voln\u00e9mu pohybu m\u011bni\u010de.  Po mont\u00e1\u017ei je d\u016fle\u017eit\u00e9 d\u016fkladn\u011b otestovat reproduktor a zkontrolovat, zda funguje spr\u00e1vn\u011b a zda zvuk je \u010dist\u00fd a bez ru\u0161en\u00ed.  Pokud je zvuk zkreslen\u00fd nebo p\u0159\u00edli\u0161 tich\u00fd, m\u016f\u017ee b\u00fdt nutn\u00e9 upravit zapojen\u00ed, ozvu\u010dnici nebo pou\u017e\u00edt jin\u00fd piezoelektrick\u00fd m\u011bni\u010d.<\/p>\n<p>Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee v\u00fdroba DIY reproduktoru s piezoelektrick\u00fdm m\u011bni\u010dem je relativn\u011b jednoduch\u00fd a dostupn\u00fd projekt, kter\u00fd nab\u00edz\u00ed mo\u017enost experimentov\u00e1n\u00ed a u\u010den\u00ed se o principech akustiky a elektroniky.  V\u00fdsledn\u00fd reproduktor sice nemus\u00ed dosahovat kvality komer\u010dn\u00edch produkt\u016f, ale poskytuje uspokojiv\u00fd zvuk pro mnoho aplikac\u00ed a je skv\u011bl\u00fdm vstupem do sv\u011bta elektroniky a DIY projekt\u016f.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DIY reproduktory s piezoelektrick\u00fdmi m\u011bni\u010di: pr\u016fvodce pro za\u010d\u00e1te\u010dn\u00edky Piezoelektrick\u00e9 m\u011bni\u010de, zn\u00e1m\u00e9 tak\u00e9 jako piezoelektrick\u00e9 bzu\u010d\u00e1ky, p\u0159edstavuj\u00ed dostupnou a relativn\u011b snadnou cestu k v\u00fdrob\u011b vlastn\u00edch reproduktor\u016f. Na rozd\u00edl od tradi\u010dn\u00edch reproduktor\u016f s ku\u017eelov\u00fdmi membr\u00e1nami, tyto reproduktory vyu\u017e\u00edvaj\u00ed vibrace krystalu k produkci zvuku. Tento \u010dl\u00e1nek poskytuje detailn\u00ed n\u00e1vod pro v\u00fdrobu jednoduch\u00e9ho, ale funk\u010dn\u00edho DIY reproduktoru s piezoelektrick\u00fdm<\/p>\n","protected":false},"author":1,"featured_media":26478,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-61831","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/61831","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/comments?post=61831"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/61831\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/26478"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=61831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=61831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=61831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}