{"id":61626,"date":"2023-04-21T14:00:31","date_gmt":"2023-04-21T19:00:31","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-big-is-a-transducer\/"},"modified":"2025-01-27T06:05:01","modified_gmt":"2025-01-27T11:05:01","slug":"how-big-is-a-transducer","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-big-is-a-transducer\/","title":{"rendered":"Rozm\u011bry sn\u00edma\u010d\u016f: Kompletn\u00ed pr\u016fvodce velikost\u00ed"},"content":{"rendered":"

Velikost sn\u00edma\u010de (transduceru) je vysoce variabiln\u00ed a z\u00e1vis\u00ed na mnoha faktorech, v\u010detn\u011b jeho aplikace, frekvence, typu a materi\u00e1lu. Neexistuje tedy jednozna\u010dn\u00e1 odpov\u011b\u010f na ot\u00e1zku "jak velk\u00fd je sn\u00edma\u010d?". Tento \u010dl\u00e1nek se pokus\u00ed objasnit tuto variabilitu a poskytnout lep\u0161\u00ed p\u0159edstavu o rozm\u011brech sn\u00edma\u010d\u016f pou\u017e\u00edvan\u00fdch v r\u016fzn\u00fdch oblastech.<\/p>\n

Typy sn\u00edma\u010d\u016f a jejich rozm\u011bry<\/h3>\n

Sn\u00edma\u010de se li\u0161\u00ed nejen velikost\u00ed, ale i tvarem a konstrukc\u00ed. Ultrazvukov\u00e9 sn\u00edma\u010de, nap\u0159\u00edklad, mohou b\u00fdt kruhov\u00e9, \u010dtvercov\u00e9, obd\u00e9ln\u00edkov\u00e9, nebo m\u00edt i slo\u017eit\u011bj\u0161\u00ed tvary. Velikost se pohybuje od n\u011bkolika milimetr\u016f a\u017e po des\u00edtky centimetr\u016f v pr\u016fm\u011bru, v z\u00e1vislosti na po\u017eadovan\u00e9 frekvenci a aplikaci. N\u00edzk\u00e9 frekvence (nap\u0159. pod 1 MHz) obvykle vy\u017eaduj\u00ed v\u011bt\u0161\u00ed sn\u00edma\u010de, zat\u00edmco vysok\u00e9 frekvence (nad 10 MHz) mohou pou\u017e\u00edvat sn\u00edma\u010de mnohem men\u0161\u00ed.<\/p>\n\n\n\n\n\n\n\n
Typ sn\u00edma\u010de<\/th>\nFrekvence (MHz)<\/th>\nTypick\u00e1 velikost (mm)<\/th>\nAplikace<\/th>\n<\/tr>\n<\/thead>\n
Kontaktn\u00ed<\/td>\n1-10<\/td>\n5-25<\/td>\nTlou\u0161\u0165kom\u011bry, nedestruktivn\u00ed testov\u00e1n\u00ed<\/td>\n<\/tr>\n
Ponorn\u00fd<\/td>\n0.5-5<\/td>\n10-50<\/td>\nM\u011b\u0159en\u00ed hladiny, pr\u016ftoku<\/td>\n<\/tr>\n
Vzduchov\u00fd<\/td>\n40-400<\/td>\n1-10<\/td>\nSn\u00edm\u00e1n\u00ed vzd\u00e1lenosti, pohybu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Vliv frekvence na velikost sn\u00edma\u010de<\/h3>\n

Frekvence je kl\u00ed\u010dov\u00fdm faktorem ovliv\u0148uj\u00edc\u00edm velikost sn\u00edma\u010de. Vysokofrekven\u010dn\u00ed sn\u00edma\u010de maj\u00ed men\u0161\u00ed vlnovou d\u00e9lku, a proto je mo\u017en\u00e9 pou\u017e\u00edt men\u0161\u00ed pr\u016fm\u011br krystalu pro dosa\u017een\u00ed po\u017eadovan\u00e9ho rozli\u0161en\u00ed. Naopak, n\u00edzkofrekven\u010dn\u00ed sn\u00edma\u010de vy\u017eaduj\u00ed v\u011bt\u0161\u00ed pr\u016fm\u011br pro efektivn\u00ed generov\u00e1n\u00ed a p\u0159\u00edjem zvukov\u00e9ho sign\u00e1lu. To je d\u00e1no fyzik\u00e1ln\u00edmi z\u00e1kony \u0161\u00ed\u0159en\u00ed zvukov\u00fdch vln.<\/p>\n

Materi\u00e1l a konstrukce sn\u00edma\u010de<\/h3>\n

Pou\u017eit\u00fd materi\u00e1l a konstrukce sn\u00edma\u010de tak\u00e9 ovliv\u0148uj\u00ed jeho celkovou velikost. R\u016fzn\u00e9 materi\u00e1ly maj\u00ed r\u016fzn\u00e9 akustick\u00e9 vlastnosti, co\u017e m\u016f\u017ee vy\u017eadovat odli\u0161n\u00e9 rozm\u011bry pro dosa\u017een\u00ed optim\u00e1ln\u00edho v\u00fdkonu. Komplexn\u011bj\u0161\u00ed konstrukce, zahrnuj\u00edc\u00ed nap\u0159\u00edklad ochrann\u00e9 pouzdro nebo dal\u0161\u00ed elektronick\u00e9 komponenty, mohou v\u00e9st k v\u011bt\u0161\u00ed celkov\u00e9 velikosti.<\/p>\n

Aplikace a po\u017eadavky na velikost<\/h3>\n

Velikost sn\u00edma\u010de je \u010dasto diktov\u00e1na samotnou aplikac\u00ed. Nap\u0159\u00edklad, pro nedestruktivn\u00ed testov\u00e1n\u00ed tenk\u00fdch materi\u00e1l\u016f se vy\u017eaduj\u00ed mal\u00e9, p\u0159esn\u00e9 sn\u00edma\u010de s vysokou frekvenc\u00ed. Pro m\u011b\u0159en\u00ed hladiny v n\u00e1dr\u017ei se naopak pou\u017e\u00edvaj\u00ed v\u011bt\u0161\u00ed, robustn\u011bj\u0161\u00ed sn\u00edma\u010de s ni\u017e\u0161\u00ed frekvenc\u00ed, schopn\u00e9 efektivn\u011b proch\u00e1zet v\u011bt\u0161\u00edm mno\u017estv\u00edm kapaliny. V n\u011bkter\u00fdch p\u0159\u00edpadech m\u016f\u017ee b\u00fdt nutn\u00e9 pou\u017e\u00edt i speci\u00e1ln\u00ed tvary sn\u00edma\u010d\u016f, aby se dostaly do t\u011b\u017eko p\u0159\u00edstupn\u00fdch m\u00edst. N\u011bkter\u00e9 aplikace, zejm\u00e9na v medic\u00edn\u011b, vy\u017eaduj\u00ed miniaturizaci, kde velikost sn\u00edma\u010de je kritick\u00fdm faktorem.<\/p>\n

Z\u00e1v\u011br<\/h3>\n

Velikost sn\u00edma\u010de je komplexn\u00ed z\u00e1le\u017eitost, z\u00e1visl\u00e1 na mnoha vz\u00e1jemn\u011b propojen\u00fdch faktorech. Neexistuje univerz\u00e1ln\u00ed velikost, kter\u00e1 by vyhovovala v\u0161em aplikac\u00edm. Spr\u00e1vn\u00e1 volba sn\u00edma\u010de vy\u017eaduje pe\u010dlivou \u00favahu o po\u017eadovan\u00e9 frekvenci, materi\u00e1lu, aplikaci a okoln\u00edch podm\u00ednk\u00e1ch. V\u017edy je nutn\u00e9 vybrat sn\u00edma\u010d s optim\u00e1ln\u00ed velikost\u00ed pro dosa\u017een\u00ed maxim\u00e1ln\u00edho v\u00fdkonu a p\u0159esnosti m\u011b\u0159en\u00ed.<\/p>\n","protected":false},"excerpt":{"rendered":"

Velikost sn\u00edma\u010de (transduceru) je vysoce variabiln\u00ed a z\u00e1vis\u00ed na mnoha faktorech, v\u010detn\u011b jeho aplikace, frekvence, typu a materi\u00e1lu. Neexistuje tedy jednozna\u010dn\u00e1 odpov\u011b\u010f na ot\u00e1zku "jak velk\u00fd je sn\u00edma\u010d?". Tento \u010dl\u00e1nek se pokus\u00ed objasnit tuto variabilitu a poskytnout lep\u0161\u00ed p\u0159edstavu o rozm\u011brech sn\u00edma\u010d\u016f pou\u017e\u00edvan\u00fdch v r\u016fzn\u00fdch oblastech. Typy sn\u00edma\u010d\u016f a jejich rozm\u011bry Sn\u00edma\u010de se li\u0161\u00ed nejen<\/p>\n","protected":false},"author":1,"featured_media":24655,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-61626","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\/61626","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=61626"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/61626\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/24655"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=61626"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=61626"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=61626"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}