{"id":59252,"date":"2023-04-22T00:02:29","date_gmt":"2023-04-22T05:02:29","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-piezoelectric-generator\/"},"modified":"2025-01-27T06:11:19","modified_gmt":"2025-01-27T11:11:19","slug":"how-to-make-piezoelectric-generator","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-to-make-piezoelectric-generator\/","title":{"rendered":"V\u00fdroba piezoelektrick\u00e9ho gener\u00e1toru: Podrobn\u00fd n\u00e1vod"},"content":{"rendered":"<p>Piezoelektrick\u00e9 gener\u00e1tory p\u0159edstavuj\u00ed fascinuj\u00edc\u00ed technologii, kter\u00e1 umo\u017e\u0148uje p\u0159em\u011bnu mechanick\u00e9 energie na energii elektrickou.  Tento proces je zalo\u017een na piezoelektrick\u00e9m efektu, kdy se v ur\u010dit\u00fdch krystalick\u00fdch materi\u00e1lech objev\u00ed elektrick\u00e9 nap\u011bt\u00ed v reakci na mechanick\u00e9 nam\u00e1h\u00e1n\u00ed.  Tento \u010dl\u00e1nek se zam\u011b\u0159\u00ed na praktick\u00e9 aspekty v\u00fdroby jednoduch\u00e9ho piezoelektrick\u00e9ho gener\u00e1toru.<\/p>\n<p>V\u00fdb\u011br piezoelektrick\u00e9ho materi\u00e1lu<\/p>\n<p>Nejd\u016fle\u017eit\u011bj\u0161\u00edm prvkem piezoelektrick\u00e9ho gener\u00e1toru je samotn\u00fd piezoelektrick\u00fd materi\u00e1l.  Nej\u010dast\u011bji se pou\u017e\u00edvaj\u00ed keramick\u00e9 materi\u00e1ly, jako je nap\u0159\u00edklad titan\u00e1t barnat\u00fd (BaTiO\u2083) nebo zirkon\u00e1t olovnato-titani\u010dit\u00fd (PZT).  PZT nab\u00edz\u00ed vy\u0161\u0161\u00ed piezoelektrickou konstantu, co\u017e znamen\u00e1 efektivn\u011bj\u0161\u00ed p\u0159em\u011bnu energie.  V\u00fdb\u011br materi\u00e1lu z\u00e1vis\u00ed na po\u017eadovan\u00e9 efektivit\u011b, mechanick\u00e9 odolnosti a cen\u011b.  N\u00ed\u017ee je uvedena tabulka s porovn\u00e1n\u00edm n\u011bkter\u00fdch b\u011b\u017en\u00fdch materi\u00e1l\u016f:<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Materi\u00e1l<\/th>\n<th>Piezoelektrick\u00e1 konstanta (pC\/N)<\/th>\n<th>Mechanick\u00e1 odolnost<\/th>\n<th>Cena<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Titan\u00e1t barnat\u00fd (BaTiO\u2083)<\/td>\n<td>100-300<\/td>\n<td>St\u0159edn\u00ed<\/td>\n<td>N\u00edzk\u00e1<\/td>\n<\/tr>\n<tr>\n<td>Zirkon\u00e1t olovnato-titani\u010dit\u00fd (PZT)<\/td>\n<td>100-1000<\/td>\n<td>Vysok\u00e1<\/td>\n<td>St\u0159edn\u00ed<\/td>\n<\/tr>\n<tr>\n<td>K\u0159emen (SiO\u2082)<\/td>\n<td>2-3<\/td>\n<td>Vysok\u00e1<\/td>\n<td>Vysok\u00e1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>P\u0159\u00edprava piezoelektrick\u00fdch element\u016f<\/p>\n<p>Piezoelektrick\u00e9 elementy se obvykle dod\u00e1vaj\u00ed ve form\u011b tenk\u00fdch desti\u010dek nebo disk\u016f.  Je d\u016fle\u017eit\u00e9 zach\u00e1zet s nimi opatrn\u011b, aby se zabr\u00e1nilo po\u0161kozen\u00ed.  P\u0159ed pou\u017eit\u00edm je t\u0159eba je o\u010distit od ne\u010distot a prachu.  Pro dosa\u017een\u00ed optim\u00e1ln\u00edho v\u00fdkonu je nutn\u00e9 zvolit vhodnou velikost a tvar element\u016f v z\u00e1vislosti na o\u010dek\u00e1van\u00e9m zat\u00ed\u017een\u00ed a frekvenci vibrac\u00ed.  P\u0159esn\u00e1 geometrie ovliv\u0148uje rezonan\u010dn\u00ed frekvenci gener\u00e1toru a t\u00edm i jeho efektivitu.<\/p>\n<p>Konstrukce gener\u00e1toru<\/p>\n<p>Jednoduch\u00fd piezoelektrick\u00fd gener\u00e1tor m\u016f\u017ee b\u00fdt sestaven z n\u011bkolika piezoelektrick\u00fdch element\u016f zapojen\u00fdch v s\u00e9rii nebo paraleln\u011b.  Pro zlep\u0161en\u00ed efektivity je vhodn\u00e9 pou\u017e\u00edt mechanick\u00e9 zes\u00edlen\u00ed, nap\u0159\u00edklad pomoc\u00ed p\u00e1ky nebo pru\u017einy, kter\u00e1 zv\u011bt\u0161uje s\u00edlu p\u016fsob\u00edc\u00ed na elementy.  Elektrody piezoelektrick\u00fdch element\u016f je nutn\u00e9 p\u0159ipojit k extern\u00edmu obvodu, kter\u00fd bude sb\u00edrat generovanou energii.  Tento obvod obvykle obsahuje usm\u011br\u0148ova\u010d a kondenz\u00e1tor pro stabilizaci v\u00fdstupn\u00edho nap\u011bt\u00ed.  Pro aplikace vy\u017eaduj\u00edc\u00ed vy\u0161\u0161\u00ed v\u00fdkony je t\u0159eba uva\u017eovat o sofistikovan\u011bj\u0161\u00edch obvodech, kter\u00e9 zahrnuj\u00ed optimalizaci impedance a \u0159\u00edzen\u00ed frekvence.<\/p>\n<p>Testov\u00e1n\u00ed a optimalizace<\/p>\n<p>Po sestaven\u00ed gener\u00e1toru je nutn\u00e9 jej d\u016fkladn\u011b otestovat a optimalizovat.  To zahrnuje m\u011b\u0159en\u00ed v\u00fdstupn\u00edho nap\u011bt\u00ed a proudu p\u0159i r\u016fzn\u00fdch frekvenc\u00edch a \u00farovn\u00edch mechanick\u00e9ho zat\u00ed\u017een\u00ed.  V\u00fdsledky test\u016f umo\u017en\u00ed identifikovat optim\u00e1ln\u00ed pracovn\u00ed podm\u00ednky a p\u0159\u00edpadn\u011b prov\u00e9st \u00fapravy konstrukce pro zlep\u0161en\u00ed v\u00fdkonu.  Pou\u017eit\u00ed osciloskopu a multimetru je p\u0159i testov\u00e1n\u00ed nezbytn\u00e9 pro p\u0159esn\u00e9 m\u011b\u0159en\u00ed.<\/p>\n<p>Aplikace piezoelektrick\u00fdch gener\u00e1tor\u016f<\/p>\n<p>Piezoelektrick\u00e9 gener\u00e1tory nach\u00e1zej\u00ed \u0161irok\u00e9 uplatn\u011bn\u00ed v r\u016fzn\u00fdch oblastech, od senzor\u016f a sn\u00edma\u010d\u016f vibrac\u00ed a\u017e po autonomn\u00ed energetick\u00e9 zdroje pro miniaturn\u00ed za\u0159\u00edzen\u00ed.  Nap\u0159\u00edklad mohou b\u00fdt pou\u017eity v energeticky n\u00e1ro\u010dn\u00fdch aplikac\u00edch, jako je sb\u011br energie z vibrac\u00ed stroj\u016f nebo z lidsk\u00e9ho pohybu.  Miniaturizace t\u011bchto gener\u00e1tor\u016f umo\u017e\u0148uje jejich integraci do \u0161irok\u00e9ho spektra za\u0159\u00edzen\u00ed a syst\u00e9m\u016f.<\/p>\n<p>Piezoelektrick\u00e9 gener\u00e1tory p\u0159edstavuj\u00ed slibnou technologii pro generov\u00e1n\u00ed energie z mechanick\u00fdch vibrac\u00ed.  Spr\u00e1vn\u00fd v\u00fdb\u011br materi\u00e1lu, pe\u010dliv\u00e1 konstrukce a optimalizace jsou kl\u00ed\u010dov\u00e9 pro dosa\u017een\u00ed efektivn\u00edho a spolehliv\u00e9ho gener\u00e1toru.  I p\u0159es relativn\u00ed jednoduchost konstrukce vy\u017eaduje \u00fasp\u011b\u0161n\u00e1 realizace piezoelektrick\u00e9ho gener\u00e1toru pochopen\u00ed z\u00e1kladn\u00edch princip\u016f piezoelektrick\u00e9ho efektu a zku\u0161enost\u00ed s elektronick\u00fdmi obvody.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Piezoelektrick\u00e9 gener\u00e1tory p\u0159edstavuj\u00ed fascinuj\u00edc\u00ed technologii, kter\u00e1 umo\u017e\u0148uje p\u0159em\u011bnu mechanick\u00e9 energie na energii elektrickou. Tento proces je zalo\u017een na piezoelektrick\u00e9m efektu, kdy se v ur\u010dit\u00fdch krystalick\u00fdch materi\u00e1lech objev\u00ed elektrick\u00e9 nap\u011bt\u00ed v reakci na mechanick\u00e9 nam\u00e1h\u00e1n\u00ed. Tento \u010dl\u00e1nek se zam\u011b\u0159\u00ed na praktick\u00e9 aspekty v\u00fdroby jednoduch\u00e9ho piezoelektrick\u00e9ho gener\u00e1toru. V\u00fdb\u011br piezoelektrick\u00e9ho materi\u00e1lu Nejd\u016fle\u017eit\u011bj\u0161\u00edm prvkem piezoelektrick\u00e9ho gener\u00e1toru je samotn\u00fd piezoelektrick\u00fd<\/p>\n","protected":false},"author":1,"featured_media":24652,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-59252","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\/59252","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=59252"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/59252\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/24652"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=59252"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=59252"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=59252"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}