{"id":61836,"date":"2023-04-21T13:24:31","date_gmt":"2023-04-21T18:24:31","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/diy-transducer-speaker\/"},"modified":"2025-01-27T06:04:04","modified_gmt":"2025-01-27T11:04:04","slug":"diy-transducer-speaker","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/diy-transducer-speaker\/","title":{"rendered":"DIY reproduktor: V\u00fdroba piezoelektrick\u00e9ho m\u011bni\u010de"},"content":{"rendered":"

DIY reproduktor s piezoelektrick\u00fdm m\u011bni\u010dem: Praktick\u00fd n\u00e1vod<\/p>\n

Vytvo\u0159en\u00ed vlastn\u00edho reproduktoru s piezoelektrick\u00fdm m\u011bni\u010dem je fascinuj\u00edc\u00ed projekt, kter\u00fd kombinuje elektroniku, fyziku a trochu zru\u010dnosti. Tento n\u00e1vod v\u00e1m krok za krokem uk\u00e1\u017ee, jak si takov\u00fd reproduktor sestavit doma. Z\u00edsk\u00e1te tak hlub\u0161\u00ed pochopen\u00ed princip\u016f fungov\u00e1n\u00ed reproduktor\u016f a z\u00e1rove\u0148 si u\u017eijete radost z vlastn\u00ed v\u00fdroby. V\u00fdsledkem bude funk\u010dn\u00ed, i kdy\u017e mo\u017en\u00e1 ne hi-fi, reproduktor, kter\u00fd m\u016f\u017eete pou\u017e\u00edt pro r\u016fzn\u00e9 experimenty.<\/p>\n

V\u00fdb\u011br piezoelektrick\u00e9ho m\u011bni\u010de<\/h3>\n

Nejd\u016fle\u017eit\u011bj\u0161\u00ed sou\u010d\u00e1st\u00ed DIY reproduktoru je piezoelektrick\u00fd m\u011bni\u010d. Tyto m\u011bni\u010de jsou dostupn\u00e9 v r\u016fzn\u00fdch velikostech a s r\u016fzn\u00fdmi charakteristikami. Pro tento projekt je vhodn\u00e9 zvolit m\u011bni\u010d s vy\u0161\u0161\u00ed frekven\u010dn\u00ed odezvou, kter\u00fd bude schopen reprodukovat alespo\u0148 st\u0159edn\u00ed a vysok\u00e9 frekvence. Je d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee piezoelektrick\u00e9 m\u011bni\u010de obecn\u011b nedosahuj\u00ed kvality reprodukce b\u011b\u017en\u00fdch reproduktor\u016f s membr\u00e1nou.<\/p>\n\n\n\n\n\n\n\n\n
Parametr<\/th>\nHodnota\/Pozn\u00e1mka<\/th>\n<\/tr>\n<\/thead>\n
Typ m\u011bni\u010de<\/td>\nPiezoelektrick\u00fd disk\/trubice<\/td>\n<\/tr>\n
Frekven\u010dn\u00ed rozsah<\/td>\n2kHz – 20kHz (ide\u00e1ln\u011b)<\/td>\n<\/tr>\n
Impedance<\/td>\n10 – 100\u03a9 (z\u00e1vis\u00ed na konkr\u00e9tn\u00edm m\u011bni\u010di)<\/td>\n<\/tr>\n
Nap\u00e1jec\u00ed nap\u011bt\u00ed<\/td>\n5V – 12V (z\u00e1vis\u00ed na konkr\u00e9tn\u00edm m\u011bni\u010di)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Konstrukce ozvu\u010dnice<\/h3>\n

Ozvu\u010dnice pro piezoelektrick\u00fd reproduktor nemus\u00ed b\u00fdt slo\u017eit\u00e1. Sta\u010d\u00ed jednoduch\u00e1 d\u0159ev\u011bn\u00e1 krabi\u010dka, kter\u00e1 bude m\u00edt otvor pro m\u011bni\u010d a p\u0159\u00edpadn\u011b i pro v\u00fdstup zvuku. D\u016fle\u017eit\u00e9 je, aby ozvu\u010dnice byla dostate\u010dn\u011b pevn\u00e1 a aby nevibrovala ne\u017e\u00e1douc\u00edm zp\u016fsobem. Materi\u00e1ly jako p\u0159ekli\u017eka nebo MDF jsou vhodn\u00e9 volbou. Velikost ozvu\u010dnice ovliv\u0148uje frekven\u010dn\u00ed odezvu a celkovou kvalitu zvuku. Experimentujte s r\u016fzn\u00fdmi velikostmi, abyste na\u0161li optim\u00e1ln\u00ed nastaven\u00ed.<\/p>\n

Zapojen\u00ed elektroniky<\/h3>\n

Zapojen\u00ed elektroniky je pom\u011brn\u011b jednoduch\u00e9. Piezoelektrick\u00fd m\u011bni\u010d je p\u0159ipojen k v\u00fdstupu zvukov\u00e9 karty po\u010d\u00edta\u010de nebo jin\u00e9ho audio zdroje. Je d\u016fle\u017eit\u00e9 zkontrolovat impedanci m\u011bni\u010de a podle toho zvolit vhodn\u00fd zesilova\u010d, aby nedo\u0161lo k jeho po\u0161kozen\u00ed. V jednoduch\u00e9m zapojen\u00ed m\u016f\u017ee sta\u010dit i rezistor pro omezen\u00ed proudu.<\/p>\n\n\n\n\n\n\n\n\n
Sou\u010d\u00e1stka<\/th>\nHodnota\/Pozn\u00e1mka<\/th>\n<\/tr>\n<\/thead>\n
Piezo m\u011bni\u010d<\/td>\nJak uvedeno v tabulce v\u00fd\u0161e<\/td>\n<\/tr>\n
Zesilova\u010d<\/td>\nNepovinn\u00e9, ale doporu\u010deno pro vy\u0161\u0161\u00ed hlasitost<\/td>\n<\/tr>\n
Rezistor<\/td>\nPro omezen\u00ed proudu (hodnota z\u00e1vis\u00ed na m\u011bni\u010di)<\/td>\n<\/tr>\n
P\u0159ipojen\u00ed<\/td>\nJack 3,5mm (nap\u0159.)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Mont\u00e1\u017e a testov\u00e1n\u00ed<\/h3>\n

Po dokon\u010den\u00ed ozvu\u010dnice a zapojen\u00ed elektroniky je \u010das na mont\u00e1\u017e a testov\u00e1n\u00ed reproduktoru. Piezoelektrick\u00fd m\u011bni\u010d se p\u0159ipevn\u00ed k ozvu\u010dnici tak, aby byl pevn\u011b dr\u017een a nevibroval voln\u011b. Pot\u00e9 se p\u0159ipoj\u00ed k audio zdroji a otestuje se jeho funk\u010dnost. Upravte hlasitost a zkuste r\u016fzn\u00e9 frekvence, abyste ov\u011b\u0159ili jeho vlastnosti. Mo\u017en\u00e1 budete pot\u0159ebovat upravit ozvu\u010dnici nebo zapojen\u00ed pro dosa\u017een\u00ed optim\u00e1ln\u00edho zvuku.<\/p>\n

Z\u00e1v\u011brem, v\u00fdroba DIY reproduktoru s piezoelektrick\u00fdm m\u011bni\u010dem je z\u00e1bavn\u00fd a pou\u010dn\u00fd projekt, kter\u00fd v\u00e1m umo\u017en\u00ed l\u00e9pe porozum\u011bt princip\u016fm akustiky a elektroniky. I kdy\u017e v\u00fdsledn\u00fd zvuk nemus\u00ed b\u00fdt perfektn\u00ed, proces v\u00fdroby a experimentov\u00e1n\u00ed s r\u016fzn\u00fdmi parametry je cennou zku\u0161enost\u00ed. Nebojte se experimentovat s r\u016fzn\u00fdmi materi\u00e1ly a zapojen\u00edmi a najd\u011bte si sv\u016fj optim\u00e1ln\u00ed zvuk.<\/p>\n","protected":false},"excerpt":{"rendered":"

DIY reproduktor s piezoelektrick\u00fdm m\u011bni\u010dem: Praktick\u00fd n\u00e1vod Vytvo\u0159en\u00ed vlastn\u00edho reproduktoru s piezoelektrick\u00fdm m\u011bni\u010dem je fascinuj\u00edc\u00ed projekt, kter\u00fd kombinuje elektroniku, fyziku a trochu zru\u010dnosti. Tento n\u00e1vod v\u00e1m krok za krokem uk\u00e1\u017ee, jak si takov\u00fd reproduktor sestavit doma. Z\u00edsk\u00e1te tak hlub\u0161\u00ed pochopen\u00ed princip\u016f fungov\u00e1n\u00ed reproduktor\u016f a z\u00e1rove\u0148 si u\u017eijete radost z vlastn\u00ed v\u00fdroby. V\u00fdsledkem bude funk\u010dn\u00ed, i<\/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-61836","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\/61836","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=61836"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/61836\/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=61836"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=61836"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=61836"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}