{"id":59087,"date":"2023-04-22T00:19:17","date_gmt":"2023-04-22T05:19:17","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-to-measure-ultrasonic-power\/"},"modified":"2025-01-27T06:11:42","modified_gmt":"2025-01-27T11:11:42","slug":"how-to-measure-ultrasonic-power","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-to-measure-ultrasonic-power\/","title":{"rendered":"M\u011b\u0159en\u00ed ultrazvukov\u00e9ho v\u00fdkonu: Praktick\u00fd n\u00e1vod"},"content":{"rendered":"<p>M\u011b\u0159en\u00ed ultrazvukov\u00e9 energie je kl\u00ed\u010dovou sou\u010d\u00e1st\u00ed jak\u00e9hokoli procesu, kter\u00fd vyu\u017e\u00edv\u00e1 ultrazvukov\u00e9 vlny. A\u0165 u\u017e se jedn\u00e1 o pr\u016fmyslov\u00e9 \u010di l\u00e9ka\u0159sk\u00e9 aplikace, p\u0159esn\u00e9 m\u011b\u0159en\u00ed v\u00fdkonu je nezbytn\u00e9 pro optimalizaci procesu, zaji\u0161t\u011bn\u00ed kvality a bezpe\u010dnostn\u00ed kontroly.  Existuje n\u011bkolik metod, jak tohoto m\u011b\u0159en\u00ed dos\u00e1hnout, ka\u017ed\u00e1 s vlastn\u00edmi v\u00fdhodami a nev\u00fdhodami.  V\u00fdb\u011br vhodn\u00e9 metody z\u00e1vis\u00ed na konkr\u00e9tn\u00ed aplikaci, frekvenci ultrazvuku a po\u017eadovan\u00e9 p\u0159esnosti.<\/p>\n<h3>Metody m\u011b\u0159en\u00ed ultrazvukov\u00e9 energie<\/h3>\n<p>Existuje n\u011bkolik metod, jak m\u011b\u0159it ultrazvukovou energii.  Nejb\u011b\u017en\u011bj\u0161\u00edmi jsou kalorimetrick\u00e1 metoda, metoda piezoelektrick\u00fdch sn\u00edma\u010d\u016f a metoda akustick\u00e9 impedance.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Metoda<\/th>\n<th>Princip<\/th>\n<th>V\u00fdhody<\/th>\n<th>Nev\u00fdhody<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Kalorimetrick\u00e1 metoda<\/td>\n<td>M\u011b\u0159en\u00ed tepla generovan\u00e9ho absorpc\u00ed ultrazvuku<\/td>\n<td>Vysok\u00e1 p\u0159esnost, jednoduch\u00e1 implementace<\/td>\n<td>Pomal\u00e1 odezva, omezen\u00e1 frekven\u010dn\u00ed odezva,  nevhodn\u00e1 pro n\u00edzk\u00e9 v\u00fdkony<\/td>\n<\/tr>\n<tr>\n<td>Piezoelektrick\u00e1 metoda<\/td>\n<td>M\u011b\u0159en\u00ed nap\u011bt\u00ed generovan\u00e9ho piezoelektrick\u00fdm sn\u00edma\u010dem<\/td>\n<td>Vysok\u00e1 frekven\u010dn\u00ed odezva, rychl\u00e1 odezva<\/td>\n<td>Nen\u00ed absolutn\u00ed metoda, z\u00e1vis\u00ed na kalibraci,  mo\u017en\u00e9 parazitn\u00ed jevy<\/td>\n<\/tr>\n<tr>\n<td>Metoda akustick\u00e9 impedance<\/td>\n<td>M\u011b\u0159en\u00ed akustick\u00e9 impedance prost\u0159ed\u00ed<\/td>\n<td>P\u0159\u00edm\u00e9 m\u011b\u0159en\u00ed energie, nez\u00e1visl\u00e9 na kalibraci<\/td>\n<td>Slo\u017eit\u011bj\u0161\u00ed implementace, vy\u017eaduje specializovan\u00e9 vybaven\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Kalorimetrick\u00e1 metoda podrobn\u011b<\/h3>\n<p>Tato metoda je zalo\u017eena na principu p\u0159em\u011bny ultrazvukov\u00e9 energie na teplo.  Ultrazvukov\u00fd paprsek je absorbov\u00e1n v kalorimetru, a zm\u011bna teploty je m\u011b\u0159ena.  Zn\u00e1me-li tepelnou kapacitu kalorimetru, m\u016f\u017eeme spo\u010d\u00edtat absorbovanou energii.  P\u0159esnost t\u00e9to metody je ovlivn\u011bna tepeln\u00fdmi ztr\u00e1tami a homogenitou absorpce ultrazvuku.  D\u016fle\u017eit\u00e9 je zajistit dobrou tepelnou izolaci kalorimetru.<\/p>\n<h3>Piezoelektrick\u00e1 metoda podrobn\u011b<\/h3>\n<p>Tato metoda vyu\u017e\u00edv\u00e1 piezoelektrick\u00fd sn\u00edma\u010d, kter\u00fd generuje elektrick\u00e9 nap\u011bt\u00ed v reakci na mechanick\u00e9 nap\u011bt\u00ed zp\u016fsoben\u00e9 ultrazvukov\u00fdmi vlnami.  Velikost generovan\u00e9ho nap\u011bt\u00ed je \u00fam\u011brn\u00e1 intenzit\u011b ultrazvuku.  Pro p\u0159esn\u00e9 m\u011b\u0159en\u00ed je nutn\u00e1 kalibrace sn\u00edma\u010de pomoc\u00ed zn\u00e1m\u00e9ho zdroje ultrazvuku.  V\u00fdb\u011br vhodn\u00e9ho sn\u00edma\u010de je kl\u00ed\u010dov\u00fd pro optim\u00e1ln\u00ed m\u011b\u0159en\u00ed v dan\u00e9 frekven\u010dn\u00ed oblasti.  Kvalita sign\u00e1lu m\u016f\u017ee b\u00fdt ovlivn\u011bna parazitn\u00edmi jevy.<\/p>\n<h3>Metoda akustick\u00e9 impedance podrobn\u011b<\/h3>\n<p>Tato metoda je zalo\u017eena na m\u011b\u0159en\u00ed akustick\u00e9 impedance prost\u0159ed\u00ed, kter\u00e9 je ovlivn\u011bno p\u0159\u00edtomnost\u00ed ultrazvuku.  M\u011b\u0159en\u00edm zm\u011bn impedance je mo\u017en\u00e9 ur\u010dit intenzitu ultrazvuku.  Tato metoda je m\u00e9n\u011b b\u011b\u017en\u00e1 ne\u017e p\u0159edchoz\u00ed dv\u011b, jeliko\u017e vy\u017eaduje specializovan\u00e9 vybaven\u00ed a slo\u017eit\u011bj\u0161\u00ed v\u00fdpo\u010dty.  Nicm\u00e9n\u011b nab\u00edz\u00ed p\u0159\u00edm\u00e9 m\u011b\u0159en\u00ed energie bez nutnosti kalibrace.  V n\u011bkter\u00fdch specifick\u00fdch aplikac\u00edch, nap\u0159\u00edklad p\u0159i charakterizaci materi\u00e1l\u016f, je tato metoda preferov\u00e1na.<\/p>\n<h3>Volba spr\u00e1vn\u00e9 metody<\/h3>\n<p>Volba vhodn\u00e9 metody pro m\u011b\u0159en\u00ed ultrazvukov\u00e9 energie z\u00e1vis\u00ed na n\u011bkolika faktorech, v\u010detn\u011b frekvence ultrazvuku, po\u017eadovan\u00e9 p\u0159esnosti a dostupn\u00e9ho vybaven\u00ed.  Pro n\u00edzk\u00e9 frekvence a vysok\u00e9 v\u00fdkony se \u010dasto pou\u017e\u00edv\u00e1 kalorimetrick\u00e1 metoda, zat\u00edmco pro vysok\u00e9 frekvence a n\u00edzk\u00e9 v\u00fdkony je vhodn\u011bj\u0161\u00ed piezoelektrick\u00e1 metoda. Metoda akustick\u00e9 impedance se pou\u017e\u00edv\u00e1 sp\u00ed\u0161e pro specializovan\u00e9 aplikace.  V n\u011bkter\u00fdch p\u0159\u00edpadech m\u016f\u017ee b\u00fdt nutn\u00e9 kombinovat v\u00edce metod pro dosa\u017een\u00ed nejlep\u0161\u00edch v\u00fdsledk\u016f.  P\u0159\u00edstrojov\u00e9 vybaven\u00ed od firmy Beijing Ultrasonic nap\u0159\u00edklad nab\u00edz\u00ed \u0161irokou \u0161k\u00e1lu mo\u017enost\u00ed pro p\u0159esn\u00e9 m\u011b\u0159en\u00ed ultrazvukov\u00e9 energie.<\/p>\n<p>M\u011b\u0159en\u00ed ultrazvukov\u00e9 energie je slo\u017eit\u00fd proces, kter\u00fd vy\u017eaduje pe\u010dlivou volbu metody a spr\u00e1vn\u00e9 pou\u017eit\u00ed m\u011b\u0159\u00edc\u00edho za\u0159\u00edzen\u00ed.  Pou\u017eit\u00ed spr\u00e1vn\u00e9 techniky je kl\u00ed\u010dov\u00e9 pro dosa\u017een\u00ed p\u0159esn\u00fdch a spolehliv\u00fdch v\u00fdsledk\u016f, kter\u00e9 jsou nezbytn\u00e9 pro optimalizaci a kontrolu ultrazvukov\u00fdch proces\u016f v r\u016fzn\u00fdch oblastech.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>M\u011b\u0159en\u00ed ultrazvukov\u00e9 energie je kl\u00ed\u010dovou sou\u010d\u00e1st\u00ed jak\u00e9hokoli procesu, kter\u00fd vyu\u017e\u00edv\u00e1 ultrazvukov\u00e9 vlny. A\u0165 u\u017e se jedn\u00e1 o pr\u016fmyslov\u00e9 \u010di l\u00e9ka\u0159sk\u00e9 aplikace, p\u0159esn\u00e9 m\u011b\u0159en\u00ed v\u00fdkonu je nezbytn\u00e9 pro optimalizaci procesu, zaji\u0161t\u011bn\u00ed kvality a bezpe\u010dnostn\u00ed kontroly. Existuje n\u011bkolik metod, jak tohoto m\u011b\u0159en\u00ed dos\u00e1hnout, ka\u017ed\u00e1 s vlastn\u00edmi v\u00fdhodami a nev\u00fdhodami. V\u00fdb\u011br vhodn\u00e9 metody z\u00e1vis\u00ed na konkr\u00e9tn\u00ed aplikaci, frekvenci<\/p>\n","protected":false},"author":1,"featured_media":42067,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-59087","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\/59087","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=59087"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/59087\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/42067"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=59087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=59087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=59087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}