{"id":63231,"date":"2022-07-13T13:28:57","date_gmt":"2022-07-13T18:28:57","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-far-should-the-items-be-from-the-source-of-ultrasonic-power\/"},"modified":"2025-01-27T06:06:31","modified_gmt":"2025-01-27T11:06:31","slug":"how-far-should-the-items-be-from-the-source-of-ultrasonic-power","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-far-should-the-items-be-from-the-source-of-ultrasonic-power\/","title":{"rendered":"Ultrazvukov\u00e1 vzd\u00e1lenost: Optim\u00e1ln\u00ed um\u00edst\u011bn\u00ed sou\u010d\u00e1st\u00ed"},"content":{"rendered":"<p>Ultrazvukov\u00e9 technologie nach\u00e1zej\u00ed \u0161irok\u00e9 uplatn\u011bn\u00ed v mnoha oblastech, od pr\u016fmyslov\u00e9 \u010di\u0161t\u011bn\u00ed a\u017e po l\u00e9ka\u0159sk\u00e9 zobrazov\u00e1n\u00ed.  Kl\u00ed\u010dov\u00fdm faktorem pro efektivn\u00ed funkci t\u011bchto technologi\u00ed je spr\u00e1vn\u00e1 vzd\u00e1lenost mezi zdrojem ultrazvukov\u00e9 energie a o\u0161et\u0159ovan\u00fdm materi\u00e1lem \u010di objektem.  Nespr\u00e1vn\u00e1 vzd\u00e1lenost m\u016f\u017ee v\u00e9st k neoptim\u00e1ln\u00edm v\u00fdsledk\u016fm, sn\u00ed\u017een\u00ed \u00fa\u010dinnosti,  a dokonce i k po\u0161kozen\u00ed za\u0159\u00edzen\u00ed.  Tento \u010dl\u00e1nek se zam\u011b\u0159\u00ed na detailn\u00ed rozbor optim\u00e1ln\u00ed vzd\u00e1lenosti v z\u00e1vislosti na r\u016fzn\u00fdch aplikac\u00edch ultrazvuku.<\/p>\n<h3>Vliv vzd\u00e1lenosti na intenzitu ultrazvuku<\/h3>\n<p>Intenzita ultrazvukov\u00e9 vlny se s rostouc\u00ed vzd\u00e1lenost\u00ed od zdroje sni\u017euje.  Tento pokles je zp\u016fsoben divergenc\u00ed vlny a absorpc\u00ed energie v prost\u0159ed\u00ed.  U vysokofrekven\u010dn\u00edch ultrazvuk\u016f je tento pokles intenzity v\u00fdrazn\u011bj\u0161\u00ed ne\u017e u n\u00edzkofrekven\u010dn\u00edch.  Optim\u00e1ln\u00ed vzd\u00e1lenost z\u00e1vis\u00ed na po\u017eadovan\u00e9 intenzit\u011b a frekvenci ultrazvuku.  P\u0159\u00edli\u0161 mal\u00e1 vzd\u00e1lenost m\u016f\u017ee v\u00e9st k lok\u00e1ln\u00edmu p\u0159eh\u0159\u00e1t\u00ed a po\u0161kozen\u00ed materi\u00e1lu. P\u0159\u00edli\u0161 velk\u00e1 vzd\u00e1lenost pak k nedostate\u010dn\u00e9mu efektu.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Frekvence (kHz)<\/th>\n<th>Optim\u00e1ln\u00ed vzd\u00e1lenost (mm)<\/th>\n<th>Pozn\u00e1mka<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>20<\/td>\n<td>10-30<\/td>\n<td>Vhodn\u00e9 pro \u010di\u0161t\u011bn\u00ed v\u011bt\u0161\u00edch p\u0159edm\u011bt\u016f<\/td>\n<\/tr>\n<tr>\n<td>40<\/td>\n<td>5-15<\/td>\n<td>Vhodn\u00e9 pro precizn\u00ed \u010di\u0161t\u011bn\u00ed a zpracov\u00e1n\u00ed<\/td>\n<\/tr>\n<tr>\n<td>100<\/td>\n<td>2-5<\/td>\n<td>Pou\u017e\u00edv\u00e1 se v mikroskopii a jemn\u00e9 manipulaci<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Vliv prost\u0159ed\u00ed na \u0161\u00ed\u0159en\u00ed ultrazvuku<\/h3>\n<p>\u0160\u00ed\u0159en\u00ed ultrazvukov\u00fdch vln je ovlivn\u011bno vlastnostmi prost\u0159ed\u00ed, ve kter\u00e9m se \u0161\u00ed\u0159\u00ed.  Hustota, viskozita a absorp\u010dn\u00ed vlastnosti m\u00e9dia v\u00fdznamn\u011b ovliv\u0148uj\u00ed intenzitu a dosah ultrazvuku. Nap\u0159\u00edklad v hust\u00e9m m\u00e9diu se ultrazvuk \u0161\u00ed\u0159\u00ed efektivn\u011bji na v\u011bt\u0161\u00ed vzd\u00e1lenost ne\u017e v m\u00e9diu \u0159\u00eddk\u00e9m.  Znalost t\u011bchto vlastnost\u00ed je kl\u00ed\u010dov\u00e1 pro ur\u010den\u00ed optim\u00e1ln\u00ed vzd\u00e1lenosti.<\/p>\n<h3>Aplikace ultrazvuku a optim\u00e1ln\u00ed vzd\u00e1lenost<\/h3>\n<p>R\u016fzn\u00e9 aplikace ultrazvuku vy\u017eaduj\u00ed r\u016fznou optim\u00e1ln\u00ed vzd\u00e1lenost od zdroje.  Nap\u0159\u00edklad v ultrazvukov\u00e9m \u010di\u0161t\u011bn\u00ed je vzd\u00e1lenost obvykle men\u0161\u00ed ne\u017e v ultrazvukov\u00e9 diagnostice.  U ultrazvukov\u00e9 sva\u0159ov\u00e1n\u00ed se pou\u017e\u00edvaj\u00ed specifick\u00e9 sondy a jejich vzd\u00e1lenost od sva\u0159ovan\u00fdch materi\u00e1l\u016f je kritick\u00e1 pro kvalitu spoje.  V n\u011bkter\u00fdch aplikac\u00edch, jako je nap\u0159\u00edklad ultrazvukov\u00e9 odstra\u0148ov\u00e1n\u00ed ne\u010distot z povrch\u016f,  je d\u016fle\u017eit\u00e9 udr\u017eovat konstantn\u00ed vzd\u00e1lenost pomoc\u00ed speci\u00e1ln\u00edch dr\u017e\u00e1k\u016f nebo syst\u00e9m\u016f s automatickou regulac\u00ed.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Aplikace<\/th>\n<th>Optim\u00e1ln\u00ed vzd\u00e1lenost (p\u0159ibli\u017en\u011b)<\/th>\n<th>D\u016fle\u017eit\u00e9 faktory<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ultrazvukov\u00e9 \u010di\u0161t\u011bn\u00ed<\/td>\n<td>1-5 cm<\/td>\n<td>Velikost a tvar p\u0159edm\u011btu, typ \u010distic\u00ed kapaliny<\/td>\n<\/tr>\n<tr>\n<td>Ultrazvukov\u00e9 sva\u0159ov\u00e1n\u00ed<\/td>\n<td>0,1-1 mm<\/td>\n<td>Typ materi\u00e1lu, tlak, \u010das sva\u0159ov\u00e1n\u00ed<\/td>\n<\/tr>\n<tr>\n<td>L\u00e9ka\u0159sk\u00e1 diagnostika (ultrazvuk)<\/td>\n<td>Z\u00e1le\u017e\u00ed na hloubce zobrazen\u00ed<\/td>\n<td>Typ senzoru, vlastnosti tk\u00e1n\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Bezpe\u010dnostn\u00ed aspekty<\/h3>\n<p>P\u0159i pr\u00e1ci s ultrazvukov\u00fdmi za\u0159\u00edzen\u00edmi je d\u016fle\u017eit\u00e9 dodr\u017eovat bezpe\u010dnostn\u00ed opat\u0159en\u00ed.  Intenzivn\u00ed ultrazvuk m\u016f\u017ee b\u00fdt \u0161kodliv\u00fd pro lidsk\u00e9 zdrav\u00ed.  Je nutn\u00e9 se vyvarovat p\u0159\u00edm\u00e9mu kontaktu s ultrazvukov\u00fdm paprskem a pou\u017e\u00edvat ochrann\u00e9 pom\u016fcky, jako jsou nap\u0159\u00edklad sluch\u00e1tka p\u0159i pr\u00e1ci s gener\u00e1tory ultrazvuku s vysokou intenzitou.  Spr\u00e1vn\u00e1 vzd\u00e1lenost od zdroje je sou\u010d\u00e1st\u00ed t\u011bchto bezpe\u010dnostn\u00edch opat\u0159en\u00ed.<\/p>\n<p>Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee optim\u00e1ln\u00ed vzd\u00e1lenost mezi zdrojem ultrazvukov\u00e9 energie a o\u0161et\u0159ovan\u00fdm objektem je kl\u00ed\u010dov\u00fdm faktorem pro efektivn\u00ed a bezpe\u010dnou funkci ultrazvukov\u00fdch za\u0159\u00edzen\u00ed.  Tato vzd\u00e1lenost se li\u0161\u00ed v z\u00e1vislosti na frekvenci ultrazvuku, vlastnostech prost\u0159ed\u00ed a konkr\u00e9tn\u00ed aplikaci.  P\u0159esn\u00e9 ur\u010den\u00ed optim\u00e1ln\u00ed vzd\u00e1lenosti vy\u017eaduje pe\u010dliv\u00e9 zv\u00e1\u017een\u00ed v\u0161ech relevantn\u00edch faktor\u016f a m\u016f\u017ee b\u00fdt ovlivn\u011bno specifick\u00fdmi vlastnostmi pou\u017eit\u00fdch za\u0159\u00edzen\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ultrazvukov\u00e9 technologie nach\u00e1zej\u00ed \u0161irok\u00e9 uplatn\u011bn\u00ed v mnoha oblastech, od pr\u016fmyslov\u00e9 \u010di\u0161t\u011bn\u00ed a\u017e po l\u00e9ka\u0159sk\u00e9 zobrazov\u00e1n\u00ed. Kl\u00ed\u010dov\u00fdm faktorem pro efektivn\u00ed funkci t\u011bchto technologi\u00ed je spr\u00e1vn\u00e1 vzd\u00e1lenost mezi zdrojem ultrazvukov\u00e9 energie a o\u0161et\u0159ovan\u00fdm materi\u00e1lem \u010di objektem. Nespr\u00e1vn\u00e1 vzd\u00e1lenost m\u016f\u017ee v\u00e9st k neoptim\u00e1ln\u00edm v\u00fdsledk\u016fm, sn\u00ed\u017een\u00ed \u00fa\u010dinnosti, a dokonce i k po\u0161kozen\u00ed za\u0159\u00edzen\u00ed. Tento \u010dl\u00e1nek se zam\u011b\u0159\u00ed na detailn\u00ed<\/p>\n","protected":false},"author":1,"featured_media":20135,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-63231","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\/63231","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=63231"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/63231\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/20135"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=63231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=63231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=63231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}