{"id":63556,"date":"2022-05-22T20:17:49","date_gmt":"2022-05-23T01:17:49","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/what-is-the-process-of-eliminating-vibration-through-piezoceramics\/"},"modified":"2025-01-27T06:17:38","modified_gmt":"2025-01-27T11:17:38","slug":"what-is-the-process-of-eliminating-vibration-through-piezoceramics","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/what-is-the-process-of-eliminating-vibration-through-piezoceramics\/","title":{"rendered":"Tlumen\u00ed vibrac\u00ed piezoelektrick\u00fdmi keramick\u00fdmi prvky"},"content":{"rendered":"

Eliminace vibrac\u00ed pomoc\u00ed piezoelektrick\u00fdch keramick\u00fdch materi\u00e1l\u016f p\u0159edstavuje fascinuj\u00edc\u00ed oblast modern\u00ed technologie. Piezoelektrick\u00fd jev, schopnost n\u011bkter\u00fdch materi\u00e1l\u016f generovat elektrick\u00e9 nap\u011bt\u00ed v reakci na mechanick\u00e9 nam\u00e1h\u00e1n\u00ed (a naopak), se vyu\u017e\u00edv\u00e1 k aktivn\u00edmu potla\u010dov\u00e1n\u00ed ne\u017e\u00e1douc\u00edch vibrac\u00ed v \u0161irok\u00e9 \u0161k\u00e1le aplikac\u00ed. Tento proces je zalo\u017een na principu zp\u011btn\u00e9 vazby, kde senzor detekuje vibrace, kter\u00e9 jsou n\u00e1sledn\u011b kompenzov\u00e1ny aktivn\u00edm generov\u00e1n\u00edm protiv\u00edbrac\u00ed pomoc\u00ed piezoelektrick\u00e9ho aktu\u00e1toru.<\/p>\n

Princip fungov\u00e1n\u00ed<\/h3>\n

Piezoelektrick\u00e9 materi\u00e1ly, jako je nap\u0159\u00edklad olovo-zirkon\u00e1t-titani\u010dit\u00e1 keramika (PZT), m\u011bn\u00ed svou geometrii v reakci na aplikovan\u00e9 elektrick\u00e9 pole. Tato zm\u011bna geometrie, i kdy\u017e mal\u00e1, m\u016f\u017ee generovat s\u00edlu, kter\u00e1 p\u016fsob\u00ed proti vibrac\u00edm. Syst\u00e9m pro eliminaci vibrac\u00ed obvykle obsahuje t\u0159i kl\u00ed\u010dov\u00e9 komponenty: senzor vibrac\u00ed, \u0159\u00eddic\u00ed jednotku a piezoelektrick\u00fd aktu\u00e1tor. Senzor detekuje amplitudu a frekvenci vibrac\u00ed. \u0158\u00eddic\u00ed jednotka zpracov\u00e1v\u00e1 sign\u00e1l ze senzoru a generuje odpov\u00eddaj\u00edc\u00ed elektrick\u00e9 nap\u011bt\u00ed, kter\u00e9 se aplikuje na piezoelektrick\u00fd aktu\u00e1tor. Aktu\u00e1tor n\u00e1sledn\u011b generuje protiv\u00edbraci, kter\u00e1 kompenzuje p\u016fvodn\u00ed vibrace.<\/p>\n

Typy piezoelektrick\u00fdch aktu\u00e1tor\u016f<\/h3>\n

Existuje n\u011bkolik typ\u016f piezoelektrick\u00fdch aktu\u00e1tor\u016f, kter\u00e9 se li\u0161\u00ed svou geometri\u00ed a zp\u016fsobem integrace do syst\u00e9mu. Mezi nej\u010dast\u011bji pou\u017e\u00edvan\u00e9 pat\u0159\u00ed:<\/p>\n\n\n\n\n\n\n\n
Typ aktu\u00e1toru<\/th>\nPopis<\/th>\nAplikace<\/th>\nV\u00fdhody<\/th>\nNev\u00fdhody<\/th>\n<\/tr>\n<\/thead>\n
Deskov\u00e9 aktu\u00e1tory<\/td>\nPloch\u00e9 desti\u010dky z PZT keramiky<\/td>\nPotla\u010dov\u00e1n\u00ed vibrac\u00ed v tenk\u00fdch struktur\u00e1ch<\/td>\nJednoduch\u00e1 integrace, vysok\u00e1 p\u0159esnost<\/td>\nMal\u00fd zdvih<\/td>\n<\/tr>\n
Trubkov\u00e9 aktu\u00e1tory<\/td>\nTrubky z PZT keramiky<\/td>\nPotla\u010dov\u00e1n\u00ed vibrac\u00ed v konstrukc\u00edch s v\u00e1lcovou symetri\u00ed<\/td>\nVysok\u00e1 s\u00edla, velk\u00fd zdvih<\/td>\nSlo\u017eit\u011bj\u0161\u00ed integrace<\/td>\n<\/tr>\n
Multimorfn\u00ed aktu\u00e1tory<\/td>\nSlo\u017eit\u011bj\u0161\u00ed konstrukce z v\u00edce PZT vrstev<\/td>\nPotla\u010dov\u00e1n\u00ed vibrac\u00ed s vysokou frekvenc\u00ed a silou<\/td>\nVysok\u00e1 \u00fa\u010dinnost<\/td>\nSlo\u017eit\u00e1 v\u00fdroba<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

N\u00e1vrh a implementace syst\u00e9mu<\/h3>\n

\u00dasp\u011b\u0161n\u00e1 eliminace vibrac\u00ed z\u00e1vis\u00ed na pe\u010dliv\u00e9m n\u00e1vrhu cel\u00e9ho syst\u00e9mu. Je nutn\u00e9 zvolit spr\u00e1vn\u00fd typ piezoelektrick\u00e9ho aktu\u00e1toru a jeho optim\u00e1ln\u00ed um\u00edst\u011bn\u00ed na vibruj\u00edc\u00ed struktu\u0159e. D\u00e1le je d\u016fle\u017eit\u00e9 navrhnout \u00fa\u010dinnou \u0159\u00eddic\u00ed jednotku, kter\u00e1 bude schopna zpracovat sign\u00e1l ze senzoru a generovat optim\u00e1ln\u00ed \u0159\u00eddic\u00ed sign\u00e1l pro aktu\u00e1tor. K tomu se \u010dasto pou\u017e\u00edvaj\u00ed pokro\u010dil\u00e9 \u0159\u00eddic\u00ed algoritmy, jako je nap\u0159\u00edklad algoritmus zp\u011btn\u00e9 vazby s optimalizac\u00ed. Frekven\u010dn\u00ed charakteristika syst\u00e9mu hraje kl\u00ed\u010dovou roli \u2013 syst\u00e9m mus\u00ed b\u00fdt schopen \u00fa\u010dinn\u011b potla\u010dovat vibrace v po\u017eadovan\u00e9m frekven\u010dn\u00edm rozsahu.<\/p>\n

Aplikace<\/h3>\n

Eliminace vibrac\u00ed pomoc\u00ed piezoelektrick\u00fdch materi\u00e1l\u016f nach\u00e1z\u00ed uplatn\u011bn\u00ed v mnoha oblastech, od automobilov\u00e9ho pr\u016fmyslu (sni\u017eov\u00e1n\u00ed hluku a vibrac\u00ed v automobilech) p\u0159es letectv\u00ed (sni\u017eov\u00e1n\u00ed vibrac\u00ed v letadlech) a\u017e po p\u0159esn\u00e9 stroj\u00edrenstv\u00ed (zlep\u0161en\u00ed p\u0159esnosti obr\u00e1b\u011bc\u00edch stroj\u016f). V medic\u00edn\u011b se pou\u017e\u00edvaj\u00ed pro vytv\u00e1\u0159en\u00ed ultrazvukov\u00fdch obraz\u016f, s vyu\u017eit\u00edm principu piezoelektrick\u00e9 konverze energie. V n\u011bkter\u00fdch aplikac\u00edch, jako je nap\u0159\u00edklad potla\u010den\u00ed vibrac\u00ed v mikroskopick\u00fdch za\u0159\u00edzen\u00edch, se technologie piezoelektrick\u00fdch aktu\u00e1tor\u016f jev\u00ed jako nejefektivn\u011bj\u0161\u00ed \u0159e\u0161en\u00ed.<\/p>\n

Piezoelektrick\u00e9 materi\u00e1ly nab\u00edzej\u00ed efektivn\u00ed a p\u0159esn\u00fd zp\u016fsob eliminace vibrac\u00ed v \u0161irok\u00e9 \u0161k\u00e1le aplikac\u00ed. Spr\u00e1vn\u00fd n\u00e1vrh syst\u00e9mu, zahrnuj\u00edc\u00ed volbu vhodn\u00e9ho aktu\u00e1toru a \u0159\u00eddic\u00edho algoritmu, je kl\u00ed\u010dov\u00fd pro dosa\u017een\u00ed optim\u00e1ln\u00edch v\u00fdsledk\u016f. Pokrok v oblasti piezoelektrick\u00fdch materi\u00e1l\u016f a \u0159\u00eddic\u00edch technologi\u00ed slibuje dal\u0161\u00ed zlep\u0161en\u00ed v oblasti potla\u010dov\u00e1n\u00ed vibrac\u00ed v budoucnosti.<\/p>\n","protected":false},"excerpt":{"rendered":"

Eliminace vibrac\u00ed pomoc\u00ed piezoelektrick\u00fdch keramick\u00fdch materi\u00e1l\u016f p\u0159edstavuje fascinuj\u00edc\u00ed oblast modern\u00ed technologie. Piezoelektrick\u00fd jev, schopnost n\u011bkter\u00fdch materi\u00e1l\u016f generovat elektrick\u00e9 nap\u011bt\u00ed v reakci na mechanick\u00e9 nam\u00e1h\u00e1n\u00ed (a naopak), se vyu\u017e\u00edv\u00e1 k aktivn\u00edmu potla\u010dov\u00e1n\u00ed ne\u017e\u00e1douc\u00edch vibrac\u00ed v \u0161irok\u00e9 \u0161k\u00e1le aplikac\u00ed. Tento proces je zalo\u017een na principu zp\u011btn\u00e9 vazby, kde senzor detekuje vibrace, kter\u00e9 jsou n\u00e1sledn\u011b kompenzov\u00e1ny aktivn\u00edm generov\u00e1n\u00edm<\/p>\n","protected":false},"author":1,"featured_media":4848,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-63556","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\/63556","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=63556"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/63556\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/4848"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=63556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=63556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=63556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}