{"id":59537,"date":"2023-04-21T23:37:39","date_gmt":"2023-04-22T04:37:39","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-homemade-piezo-transducer\/"},"modified":"2025-01-27T06:10:34","modified_gmt":"2025-01-27T11:10:34","slug":"how-to-make-homemade-piezo-transducer","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-to-make-homemade-piezo-transducer\/","title":{"rendered":"V\u00fdroba piezoelektrick\u00e9ho sn\u00edma\u010de doma: Podrobn\u00fd n\u00e1vod"},"content":{"rendered":"<p>Piezoelektrick\u00fd sn\u00edma\u010d si m\u016f\u017eete vyrobit i doma, i kdy\u017e v\u00fdroba profesion\u00e1ln\u00edho za\u0159\u00edzen\u00ed vy\u017eaduje specializovan\u00e9 vybaven\u00ed a znalosti.  Tento \u010dl\u00e1nek v\u00e1m poskytne z\u00e1kladn\u00ed n\u00e1vod na vytvo\u0159en\u00ed jednoduch\u00e9ho piezoelektrick\u00e9ho sn\u00edma\u010de.  V\u00fdsledn\u00fd sn\u00edma\u010d nebude m\u00edt parametry srovnateln\u00e9 s komer\u010dn\u011b dostupn\u00fdmi produkty, ale poslou\u017e\u00ed k demonstraci principu piezoelektrick\u00e9ho jevu a k jednoduch\u00fdm experiment\u016fm.<\/p>\n<p>V\u00fdb\u011br piezoelektrick\u00e9ho materi\u00e1lu<\/p>\n<p>Nejd\u016fle\u017eit\u011bj\u0161\u00ed sou\u010d\u00e1st\u00ed piezoelektrick\u00e9ho sn\u00edma\u010de je piezoelektrick\u00fd materi\u00e1l.  Pro dom\u00e1c\u00ed v\u00fdrobu je nejdostupn\u011bj\u0161\u00ed piezoelektrick\u00e1 keramika, kter\u00e1 se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1 v zapalova\u010d\u00edch.  Tyto zapalova\u010de obsahuj\u00ed mal\u00fd keramick\u00fd disk s kovov\u00fdmi elektrodami.  Kvalita materi\u00e1lu z zapalova\u010de je ov\u0161em omezen\u00e1 a jeho vlastnosti se zna\u010dn\u011b li\u0161\u00ed v z\u00e1vislosti na v\u00fdrobci.  Pro n\u00e1ro\u010dn\u011bj\u0161\u00ed aplikace je nutn\u00e9 pou\u017e\u00edt specializovan\u00e9 piezoelektrick\u00e9 materi\u00e1ly.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Materi\u00e1l<\/th>\n<th>Dostupnost<\/th>\n<th>Cena<\/th>\n<th>Kvalita<\/th>\n<th>Aplikace<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Keramika z zapalova\u010de<\/td>\n<td>Vysok\u00e1<\/td>\n<td>N\u00edzk\u00e1<\/td>\n<td>N\u00edzk\u00e1 a\u017e st\u0159edn\u00ed<\/td>\n<td>Jednoduch\u00e9 experimenty<\/td>\n<\/tr>\n<tr>\n<td>Keramika (speci\u00e1ln\u00ed)<\/td>\n<td>N\u00edzk\u00e1<\/td>\n<td>St\u0159edn\u00ed a\u017e vysok\u00e1<\/td>\n<td>Vysok\u00e1<\/td>\n<td>Profesion\u00e1ln\u00ed aplikace<\/td>\n<\/tr>\n<tr>\n<td>Krystal k\u0159emene<\/td>\n<td>N\u00edzk\u00e1<\/td>\n<td>Vysok\u00e1<\/td>\n<td>Vysok\u00e1<\/td>\n<td>Vysokop\u0159esn\u00e9 aplikace<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>P\u0159\u00edprava piezoelektrick\u00e9 keramiky<\/p>\n<p>Keramick\u00fd disk z zapalova\u010de je pot\u0159eba opatrn\u011b vyjmout.  Je d\u016fle\u017eit\u00e9 se vyhnout po\u0161kozen\u00ed k\u0159ehk\u00e9ho materi\u00e1lu.  Po vyjmut\u00ed je nutn\u00e9 o\u010distit kontakty od zbytk\u016f plast\u016f a p\u0159\u00edpadn\u00fdch ne\u010distot.  Pro zlep\u0161en\u00ed kontaktu a zv\u00fd\u0161en\u00ed citlivosti je vhodn\u00e9 kontakty o\u0161et\u0159it vodivou pastou.<\/p>\n<p>Elektrick\u00e9 zapojen\u00ed<\/p>\n<p>K piezoelektrick\u00e9 keramice je nutn\u00e9 p\u0159ipojit elektrick\u00e9 kontakty.  To se nejl\u00e9pe provede pomoc\u00ed tenk\u00fdch dr\u00e1tk\u016f a vodiv\u00e9ho lepidla, kter\u00e9 zajist\u00ed pevn\u00fd a spolehliv\u00fd kontakt.  Krom\u011b samotn\u00e9 keramiky budete pot\u0159ebovat i m\u011b\u0159ic\u00ed p\u0159\u00edstroj (nap\u0159. osciloskop) pro zaznamen\u00e1n\u00ed generovan\u00e9ho sign\u00e1lu.  Pro zes\u00edlen\u00ed slab\u00e9ho sign\u00e1lu je vhodn\u00e9 pou\u017e\u00edt p\u0159edzesilova\u010d.<\/p>\n<p>Mont\u00e1\u017e a testov\u00e1n\u00ed<\/p>\n<p>Piezoelektrick\u00fd sn\u00edma\u010d je nutn\u00e9 vhodn\u011b upevnit.  D\u016fle\u017eit\u00e9 je zamezit mechanick\u00fdm vibrac\u00edm, kter\u00e9 by mohly ovlivnit p\u0159esnost m\u011b\u0159en\u00ed.  Pro testov\u00e1n\u00ed se sn\u00edma\u010d vystav\u00ed mechanick\u00e9mu nam\u00e1h\u00e1n\u00ed (nap\u0159. klepnut\u00ed, tlak).  Generovan\u00fd elektrick\u00fd sign\u00e1l se pak m\u011b\u0159\u00ed pomoc\u00ed osciloskopu.  Intenzita sign\u00e1lu z\u00e1vis\u00ed na s\u00edle mechanick\u00e9ho nam\u00e1h\u00e1n\u00ed a vlastnostech piezoelektrick\u00e9 keramiky.<\/p>\n<p>Zlep\u0161en\u00ed parametr\u016f<\/p>\n<p>Kvalitu dom\u00e1c\u00edho piezoelektrick\u00e9ho sn\u00edma\u010de je mo\u017en\u00e9 zlep\u0161it pou\u017eit\u00edm kvalitn\u011bj\u0161\u00ed piezoelektrick\u00e9 keramiky a pe\u010dliv\u011bj\u0161\u00edm zhotoven\u00edm elektrick\u00fdch kontakt\u016f.  D\u00e1le je mo\u017en\u00e9 experimentovat s r\u016fzn\u00fdmi typy upevn\u011bn\u00ed a mechanick\u00fdm nastaven\u00edm sn\u00edma\u010de pro optimalizaci citlivosti a linearity.<\/p>\n<p>Piezoelektrick\u00fd sn\u00edma\u010d z dom\u00e1c\u00edch zdroj\u016f p\u0159edstavuje v\u00fdzvu, ale i uspokojiv\u00fd projekt pro ty, kte\u0159\u00ed se zaj\u00edmaj\u00ed o elektroniku a fyziku. I kdy\u017e jeho vlastnosti nebudou srovnateln\u00e9 s profesion\u00e1ln\u00edmi za\u0159\u00edzen\u00edmi, poskytuje cennou zku\u0161enost a umo\u017e\u0148uje pochopit princip piezoelektrick\u00e9ho jevu.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Piezoelektrick\u00fd sn\u00edma\u010d si m\u016f\u017eete vyrobit i doma, i kdy\u017e v\u00fdroba profesion\u00e1ln\u00edho za\u0159\u00edzen\u00ed vy\u017eaduje specializovan\u00e9 vybaven\u00ed a znalosti. Tento \u010dl\u00e1nek v\u00e1m poskytne z\u00e1kladn\u00ed n\u00e1vod na vytvo\u0159en\u00ed jednoduch\u00e9ho piezoelektrick\u00e9ho sn\u00edma\u010de. V\u00fdsledn\u00fd sn\u00edma\u010d nebude m\u00edt parametry srovnateln\u00e9 s komer\u010dn\u011b dostupn\u00fdmi produkty, ale poslou\u017e\u00ed k demonstraci principu piezoelektrick\u00e9ho jevu a k jednoduch\u00fdm experiment\u016fm. V\u00fdb\u011br piezoelektrick\u00e9ho materi\u00e1lu Nejd\u016fle\u017eit\u011bj\u0161\u00ed sou\u010d\u00e1st\u00ed piezoelektrick\u00e9ho<\/p>\n","protected":false},"author":1,"featured_media":19412,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-59537","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\/59537","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=59537"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/59537\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/19412"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=59537"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=59537"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=59537"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}