{"id":59858,"date":"2023-04-21T23:06:21","date_gmt":"2023-04-22T04:06:21","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-make-an-ultrasonic-transducer\/"},"modified":"2025-01-27T06:09:39","modified_gmt":"2025-01-27T11:09:39","slug":"how-to-make-an-ultrasonic-transducer","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-to-make-an-ultrasonic-transducer\/","title":{"rendered":"Konstrukce ultrazvukov\u00e9ho sn\u00edma\u010de: Podrobn\u00fd n\u00e1vod"},"content":{"rendered":"

Ultrazvukov\u00e9 sn\u00edma\u010de nach\u00e1zej\u00ed \u0161irok\u00e9 uplatn\u011bn\u00ed v mnoha oblastech, od l\u00e9ka\u0159stv\u00ed a pr\u016fmyslov\u00e9 kontroly a\u017e po automobilov\u00fd pr\u016fmysl a automatizaci. V\u00fdroba t\u011bchto sn\u00edma\u010d\u016f je komplexn\u00ed proces vy\u017eaduj\u00edc\u00ed pochopen\u00ed piezoelektrick\u00e9ho jevu a precizn\u00ed technologie. Tento \u010dl\u00e1nek se zam\u011b\u0159uje na kl\u00ed\u010dov\u00e9 aspekty v\u00fdroby ultrazvukov\u00e9ho sn\u00edma\u010de.<\/p>\n

V\u00fdb\u011br piezoelektrick\u00e9ho materi\u00e1lu<\/p>\n

Z\u00e1kladem ka\u017ed\u00e9ho ultrazvukov\u00e9ho sn\u00edma\u010de je piezoelektrick\u00fd materi\u00e1l, kter\u00fd dok\u00e1\u017ee p\u0159ev\u00e1d\u011bt elektrickou energii na mechanickou vibraci a naopak. Nej\u010dast\u011bji pou\u017e\u00edvan\u00e9 materi\u00e1ly zahrnuj\u00ed piezoelektrickou keramiku, jako je nap\u0159\u00edklad titan\u00e1t barnat\u00fd (BaTiO\u2083) nebo zirkon\u00e1t olovnato-titani\u010dit\u00fd (PZT). Volba materi\u00e1lu z\u00e1vis\u00ed na po\u017eadovan\u00fdch vlastnostech sn\u00edma\u010de, jako je frekvence, citlivost a odolnost. PZT je obl\u00edben\u00fd pro svou vysokou piezoelektrickou konstantu a mechanickou pevnost. Kvalita materi\u00e1lu siln\u011b ovliv\u0148uje v\u00fdkon v\u00fdsledn\u00e9ho sn\u00edma\u010de.<\/p>\n

Design a v\u00fdroba piezoelektrick\u00e9ho prvku<\/p>\n

Piezoelektrick\u00fd prvek je srdcem sn\u00edma\u010de. Jeho tvar a rozm\u011bry ur\u010duj\u00ed rezonan\u010dn\u00ed frekvenci a sm\u011brov\u00e9 vlastnosti. Design se \u010dasto prov\u00e1d\u00ed pomoc\u00ed simula\u010dn\u00edch program\u016f pro optimalizaci v\u00fdkonu. V\u00fdroba prvku zahrnuje n\u011bkolik krok\u016f: p\u0159\u00edpravu materi\u00e1lu, lisov\u00e1n\u00ed do po\u017eadovan\u00e9ho tvaru, sp\u00e9k\u00e1n\u00ed p\u0159i vysok\u00e9 teplot\u011b a n\u00e1sledn\u00e9 pokovov\u00e1n\u00ed pro p\u0159ipojen\u00ed elektrick\u00fdch kontakt\u016f. Preciznost v ka\u017ed\u00e9m kroku je kl\u00ed\u010dov\u00e1 pro dosa\u017een\u00ed po\u017eadovan\u00fdch vlastnost\u00ed.<\/p>\n

Konstrukce a mont\u00e1\u017e sn\u00edma\u010de<\/p>\n

Piezoelektrick\u00fd prvek se obvykle montuje do kovov\u00e9 schr\u00e1nky, kter\u00e1 slou\u017e\u00ed jako ochrana a z\u00e1rove\u0148 ovliv\u0148uje akustick\u00e9 vlastnosti. Typick\u00e9 konstrukce zahrnuj\u00ed pou\u017eit\u00ed akustick\u00fdch adapt\u00e9r\u016f pro optimalizaci p\u0159enosu zvuku do m\u00e9dia. D\u016fle\u017eit\u00fdm faktorem je i spr\u00e1vn\u00e9 uchycen\u00ed prvku, aby se minimalizovaly ztr\u00e1ty energie a vibrace. Schr\u00e1nka m\u016f\u017ee b\u00fdt vyrobena z r\u016fzn\u00fdch materi\u00e1l\u016f, jako je hlin\u00edk, ocel nebo titan, v z\u00e1vislosti na aplikaci.<\/p>\n

Charakterizace a testov\u00e1n\u00ed<\/p>\n

Po dokon\u010den\u00ed v\u00fdroby je nutn\u00e9 charakterizovat a otestovat sn\u00edma\u010d. To zahrnuje m\u011b\u0159en\u00ed rezonan\u010dn\u00ed frekvence, citlivosti, sm\u011brov\u00e9 charakteristiky a dal\u0161\u00edch parametr\u016f. Pou\u017e\u00edvaj\u00ed se k tomu speci\u00e1ln\u00ed p\u0159\u00edstroje, jako jsou nap\u0159\u00edklad impedan\u010dn\u00ed analyz\u00e1tory a ultrazvukov\u00e9 gener\u00e1tory. V\u00fdsledky test\u016f se porovnaj\u00ed s po\u017eadovan\u00fdmi specifikacemi.<\/p>\n

Porovn\u00e1n\u00ed typ\u016f ultrazvukov\u00fdch sn\u00edma\u010d\u016f<\/p>\n\n\n\n\n\n\n\n
Typ sn\u00edma\u010de<\/th>\nMateri\u00e1l<\/th>\nFrekven\u010dn\u00ed rozsah<\/th>\nAplikace<\/th>\n<\/tr>\n<\/thead>\n
Kapacitn\u00ed<\/td>\nPZT<\/td>\n1-100 MHz<\/td>\nL\u00e9ka\u0159stv\u00ed, pr\u016fmyslov\u00e1 kontrola<\/td>\n<\/tr>\n
Piezoelektrick\u00fd<\/td>\nPZT<\/td>\n20 kHz – 10 MHz<\/td>\nUltrazvukov\u00e9 \u010didlo, d\u00e1lkom\u011bry<\/td>\n<\/tr>\n
Magnetostrik\u010dn\u00ed<\/td>\nTerfenol-D<\/td>\n20 kHz – 1 MHz<\/td>\nSonar, pr\u016fmyslov\u00e9 \u010didlo<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee v\u00fdroba ultrazvukov\u00e9ho sn\u00edma\u010de je n\u00e1ro\u010dn\u00fd proces, kter\u00fd vy\u017eaduje komplexn\u00ed znalosti materi\u00e1l\u016f, designu a technologie. P\u0159esnost a kvalita v ka\u017ed\u00e9 f\u00e1zi v\u00fdroby jsou kl\u00ed\u010dov\u00e9 pro dosa\u017een\u00ed optim\u00e1ln\u00edho v\u00fdkonu sn\u00edma\u010de a jeho spolehliv\u00e9ho fungov\u00e1n\u00ed v zam\u00fd\u0161len\u00e9 aplikaci. Pou\u017eit\u00ed modern\u00edch simula\u010dn\u00edch n\u00e1stroj\u016f a precizn\u00ed v\u00fdrobn\u00ed technologie umo\u017e\u0148uje vytv\u00e1\u0159et vysoce v\u00fdkonn\u00e9 sn\u00edma\u010de pro \u0161irokou \u0161k\u00e1lu aplikac\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"

Ultrazvukov\u00e9 sn\u00edma\u010de nach\u00e1zej\u00ed \u0161irok\u00e9 uplatn\u011bn\u00ed v mnoha oblastech, od l\u00e9ka\u0159stv\u00ed a pr\u016fmyslov\u00e9 kontroly a\u017e po automobilov\u00fd pr\u016fmysl a automatizaci. V\u00fdroba t\u011bchto sn\u00edma\u010d\u016f je komplexn\u00ed proces vy\u017eaduj\u00edc\u00ed pochopen\u00ed piezoelektrick\u00e9ho jevu a precizn\u00ed technologie. Tento \u010dl\u00e1nek se zam\u011b\u0159uje na kl\u00ed\u010dov\u00e9 aspekty v\u00fdroby ultrazvukov\u00e9ho sn\u00edma\u010de. V\u00fdb\u011br piezoelektrick\u00e9ho materi\u00e1lu Z\u00e1kladem ka\u017ed\u00e9ho ultrazvukov\u00e9ho sn\u00edma\u010de je piezoelektrick\u00fd materi\u00e1l, kter\u00fd dok\u00e1\u017ee p\u0159ev\u00e1d\u011bt<\/p>\n","protected":false},"author":1,"featured_media":19407,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-59858","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\/59858","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=59858"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/59858\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/19407"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=59858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=59858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=59858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}