{"id":62261,"date":"2023-04-21T12:46:01","date_gmt":"2023-04-21T17:46:01","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/diy-high-frequency-sound-generator\/"},"modified":"2025-01-27T06:03:01","modified_gmt":"2025-01-27T11:03:01","slug":"diy-high-frequency-sound-generator","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/diy-high-frequency-sound-generator\/","title":{"rendered":"Gener\u00e1tor vysokofrekven\u010dn\u00edch zvuk\u016f: DIY n\u00e1vod"},"content":{"rendered":"<p>Gener\u00e1tor vysokofrekven\u010dn\u00edch zvuk\u016f si m\u016f\u017eete postavit sami doma, a\u010dkoliv je to n\u00e1ro\u010dn\u011bj\u0161\u00ed projekt, ne\u017e se na prvn\u00ed pohled zd\u00e1.  Vysokofrekven\u010dn\u00ed zvuk, p\u0159ekra\u010duj\u00edc\u00ed rozsah lidsk\u00e9ho sluchu, m\u00e1 mnoho vyu\u017eit\u00ed, od odpuzov\u00e1n\u00ed hlodavc\u016f a\u017e po experimenty s ultrazvukem.  Tento \u010dl\u00e1nek se zam\u011b\u0159\u00ed na praktick\u00e9 aspekty stavby takov\u00e9ho za\u0159\u00edzen\u00ed.  Je d\u016fle\u017eit\u00e9 si uv\u011bdomit bezpe\u010dnostn\u00ed opat\u0159en\u00ed, proto\u017ee vysokofrekven\u010dn\u00ed zvuk m\u016f\u017ee b\u00fdt \u0161kodliv\u00fd pro lidsk\u00e9 zdrav\u00ed i pro elektroniku.<\/p>\n<h3>Komponenty pro stavbu gener\u00e1toru<\/h3>\n<p>Z\u00e1kladn\u00edmi komponenty pro stavbu jednoduch\u00e9ho gener\u00e1toru vysokofrekven\u010dn\u00edch zvuk\u016f jsou:<\/p>\n<ul>\n<li><strong>Mikro\u0159adi\u010d (nap\u0159. Arduino Uno):<\/strong>  Z\u00e1kladn\u00ed \u0159\u00eddic\u00ed jednotka, kter\u00e1 generuje sign\u00e1l.<\/li>\n<li><strong>Piezoelektrick\u00fd m\u011bni\u010d:<\/strong> P\u0159ev\u00e1d\u00ed elektrick\u00fd sign\u00e1l na mechanick\u00e9 vibrace, kter\u00e9 produkuj\u00ed zvuk.  V\u00fdb\u011br vhodn\u00e9ho m\u011bni\u010de je kl\u00ed\u010dov\u00fd pro dosa\u017een\u00ed po\u017eadovan\u00e9 frekvence a intenzity.  Frekven\u010dn\u00ed rozsah se pohybuje od n\u011bkolika kilohertz\u016f a\u017e po megahertzy, v z\u00e1vislosti na aplikaci.<\/li>\n<li><strong>Nap\u00e1jec\u00ed zdroj:<\/strong>  Dod\u00e1v\u00e1 energii mikro\u0159adi\u010di a piezoelektrick\u00e9mu m\u011bni\u010di.  Nap\u011bt\u00ed by m\u011blo b\u00fdt v souladu s po\u017eadavky komponent.<\/li>\n<li><strong>Rezistory a kondenz\u00e1tory:<\/strong>  Pou\u017e\u00edvaj\u00ed se k \u00faprav\u011b sign\u00e1lu generovan\u00e9ho mikro\u0159adi\u010dem a ochran\u011b obvodu.<\/li>\n<li><strong>Sch\u00e9ma zapojen\u00ed:<\/strong>  P\u0159esn\u00e1 zapojen\u00ed se li\u0161\u00ed podle pou\u017eit\u00e9ho mikro\u0159adi\u010de a piezoelektrick\u00e9ho m\u011bni\u010de.<\/li>\n<\/ul>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Komponent<\/th>\n<th>Funkce<\/th>\n<th>Pozn\u00e1mka<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Mikro\u0159adi\u010d (Arduino Uno)<\/td>\n<td>\u0158\u00eddic\u00ed jednotka<\/td>\n<td>Lze nahradit jin\u00fdm typem<\/td>\n<\/tr>\n<tr>\n<td>Piezoelektrick\u00fd m\u011bni\u010d<\/td>\n<td>Generov\u00e1n\u00ed zvuku<\/td>\n<td>Volba frekvence a intenzity<\/td>\n<\/tr>\n<tr>\n<td>Nap\u00e1jec\u00ed zdroj (5V)<\/td>\n<td>Nap\u00e1jen\u00ed obvodu<\/td>\n<td>Stabiln\u00ed nap\u011bt\u00ed je d\u016fle\u017eit\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Rezistory<\/td>\n<td>Ochrana obvodu, \u00faprava sign\u00e1lu<\/td>\n<td>Hodnoty dle sch\u00e9matu<\/td>\n<\/tr>\n<tr>\n<td>Kondenz\u00e1tory<\/td>\n<td>Filtrace sign\u00e1lu<\/td>\n<td>Hodnoty dle sch\u00e9matu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Programov\u00e1n\u00ed mikro\u0159adi\u010de<\/h3>\n<p>Mikro\u0159adi\u010d je naprogramov\u00e1n tak, aby generoval po\u017eadovan\u00fd vysokofrekven\u010dn\u00ed sign\u00e1l.  Program je naps\u00e1n v jazyce C++ a nahr\u00e1v\u00e1n do mikro\u0159adi\u010de pomoc\u00ed programovac\u00edho software.  K\u00f3d se li\u0161\u00ed v z\u00e1vislosti na po\u017eadovan\u00e9 frekvenci a tvaru sign\u00e1lu (nap\u0159. sinusov\u00fd, obd\u00e9ln\u00edkov\u00fd).  Existuje mnoho online zdroj\u016f s uk\u00e1zkov\u00fdmi k\u00f3dy a n\u00e1vody.<\/p>\n<h3>Bezpe\u010dnostn\u00ed opat\u0159en\u00ed<\/h3>\n<p>P\u0159i pr\u00e1ci s vysokofrekven\u010dn\u00edm zvukem je nutn\u00e9 dodr\u017eovat bezpe\u010dnostn\u00ed opat\u0159en\u00ed:<\/p>\n<ul>\n<li><strong>Sluch\u00e1tka:<\/strong> Vysokofrekven\u010dn\u00ed zvuk m\u016f\u017ee b\u00fdt \u0161kodliv\u00fd pro sluch, i kdy\u017e jej nesly\u0161\u00edte.<\/li>\n<li><strong>Intenzita zvuku:<\/strong>  P\u0159\u00edli\u0161 vysok\u00e1 intenzita m\u016f\u017ee po\u0161kodit elektroniku nebo okoln\u00ed prost\u0159ed\u00ed.<\/li>\n<li><strong>D\u00e9lka expozice:<\/strong>  Dlouhodob\u00e1 expozice vysokofrekven\u010dn\u00edmu zvuku m\u016f\u017ee b\u00fdt \u0161kodliv\u00e1.<\/li>\n<\/ul>\n<h3>Aplikace gener\u00e1toru vysokofrekven\u010dn\u00edch zvuk\u016f<\/h3>\n<p>DIY gener\u00e1tor vysokofrekven\u010dn\u00edch zvuk\u016f m\u016f\u017ee b\u00fdt pou\u017eit v r\u016fzn\u00fdch aplikac\u00edch, nap\u0159\u00edklad:<\/p>\n<ul>\n<li><strong>Odpuzov\u00e1n\u00ed hlodavc\u016f:<\/strong>  N\u011bkter\u00e9 frekvence jsou nep\u0159\u00edjemn\u00e9 pro hlodavce a mohou je odradit od vstupu do domu.<\/li>\n<li><strong>Experimenty s ultrazvukem:<\/strong>  Gener\u00e1tor umo\u017e\u0148uje prov\u00e1d\u011bt experimenty s ultrazvukem, nap\u0159\u00edklad m\u011b\u0159en\u00ed rychlosti zvuku ve vzduchu.<\/li>\n<li><strong>Ultrazvukov\u00e9 \u010distic\u00ed za\u0159\u00edzen\u00ed:<\/strong>  S vhodn\u00fdm piezoelektrick\u00fdm m\u011bni\u010dem a n\u00e1dobou s kapalinou je mo\u017en\u00e9 vytvo\u0159it jednoduch\u00e9 ultrazvukov\u00e9 \u010distic\u00ed za\u0159\u00edzen\u00ed.<\/li>\n<\/ul>\n<p>Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee stavba DIY gener\u00e1toru vysokofrekven\u010dn\u00edch zvuk\u016f je n\u00e1ro\u010dn\u00fd, ale uskute\u010dniteln\u00fd projekt.  D\u016fle\u017eit\u00e9 je spr\u00e1vn\u011b vybrat komponenty, naprogramovat mikro\u0159adi\u010d a dodr\u017eovat bezpe\u010dnostn\u00ed opat\u0159en\u00ed.  Vhodn\u00fd v\u00fdb\u011br piezoelektrick\u00e9ho m\u011bni\u010de ur\u010duje \u00fasp\u011bch cel\u00e9ho projektu.  Experimentujte zodpov\u011bdn\u011b a s ohledem na bezpe\u010dnost.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gener\u00e1tor vysokofrekven\u010dn\u00edch zvuk\u016f si m\u016f\u017eete postavit sami doma, a\u010dkoliv je to n\u00e1ro\u010dn\u011bj\u0161\u00ed projekt, ne\u017e se na prvn\u00ed pohled zd\u00e1. Vysokofrekven\u010dn\u00ed zvuk, p\u0159ekra\u010duj\u00edc\u00ed rozsah lidsk\u00e9ho sluchu, m\u00e1 mnoho vyu\u017eit\u00ed, od odpuzov\u00e1n\u00ed hlodavc\u016f a\u017e po experimenty s ultrazvukem. Tento \u010dl\u00e1nek se zam\u011b\u0159\u00ed na praktick\u00e9 aspekty stavby takov\u00e9ho za\u0159\u00edzen\u00ed. Je d\u016fle\u017eit\u00e9 si uv\u011bdomit bezpe\u010dnostn\u00ed opat\u0159en\u00ed, proto\u017ee vysokofrekven\u010dn\u00ed zvuk<\/p>\n","protected":false},"author":1,"featured_media":26476,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-62261","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\/62261","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=62261"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/62261\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/26476"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=62261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=62261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=62261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}