{"id":63291,"date":"2022-07-02T19:44:04","date_gmt":"2022-07-03T00:44:04","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/can-the-ultrasonic-sound-produced-by-ultrasonic-cleaners-damage-my-hearing\/"},"modified":"2025-01-27T06:02:06","modified_gmt":"2025-01-27T11:02:06","slug":"can-the-ultrasonic-sound-produced-by-ultrasonic-cleaners-damage-my-hearing","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/can-the-ultrasonic-sound-produced-by-ultrasonic-cleaners-damage-my-hearing\/","title":{"rendered":"Ultrazvukov\u00e9 \u010disti\u010dky: Hroz\u00ed po\u0161kozen\u00ed sluchu?"},"content":{"rendered":"

Ultrazvukov\u00e9 \u010disti\u010de jsou st\u00e1le popul\u00e1rn\u011bj\u0161\u00ed pro \u010di\u0161t\u011bn\u00ed \u0161perk\u016f, n\u00e1stroj\u016f a dal\u0161\u00edch p\u0159edm\u011bt\u016f. Funguj\u00ed na principu ultrazvuku, tedy zvukov\u00fdch vln s frekvenc\u00ed vy\u0161\u0161\u00ed ne\u017e 20 kHz, kter\u00e1 je hranic\u00ed lidsk\u00e9ho sluchu. Nicm\u00e9n\u011b, ot\u00e1zka, zda ultrazvuk z t\u011bchto \u010disti\u010d\u016f m\u016f\u017ee po\u0161kodit n\u00e1\u0161 sluch, z\u016fst\u00e1v\u00e1. Tento \u010dl\u00e1nek se pokus\u00ed tuto ot\u00e1zku zodpov\u011bd\u011bt podrobn\u011b.<\/p>\n

Frekvence a intenzita ultrazvuku<\/h3>\n

Ultrazvukov\u00e9 \u010disti\u010de obvykle pracuj\u00ed s frekvenc\u00ed v rozmez\u00ed 25-45 kHz. To je v\u00fdrazn\u011b nad hranic\u00ed lidsk\u00e9ho sluchu, tak\u017ee by v principu nem\u011bly b\u00fdt p\u0159\u00edmo sly\u0161iteln\u00e9. Nicm\u00e9n\u011b, intenzita ultrazvuku je kl\u00ed\u010dov\u00e1. Zat\u00edmco samotn\u00e9 ultrazvukov\u00e9 vlny nejsou sly\u0161iteln\u00e9, vysok\u00e1 intenzita m\u016f\u017ee generovat sly\u0161iteln\u00e9 harmonick\u00e9 frekvence nebo modulovat okoln\u00ed hluk, co\u017e by mohlo v\u00e9st k nep\u0159\u00edjemn\u00fdm zvuk\u016fm a potenci\u00e1ln\u00edmu po\u0161kozen\u00ed sluchu.<\/p>\n\n\n\n\n\n\n\n
Frekvence (kHz)<\/th>\nIntenzita (W\/cm\u00b2)<\/th>\nPotenci\u00e1ln\u00ed riziko pro sluch<\/th>\n<\/tr>\n<\/thead>\n
25-45<\/td>\n< 1<\/td>\nMinim\u00e1ln\u00ed a\u017e \u017e\u00e1dn\u00e9<\/td>\n<\/tr>\n
25-45<\/td>\n1-10<\/td>\nMo\u017en\u00e9 sly\u0161iteln\u00e9 harmonick\u00e9, m\u00edrn\u00e9 riziko<\/td>\n<\/tr>\n
25-45<\/td>\n> 10<\/td>\nVysok\u00e9 riziko po\u0161kozen\u00ed sluchu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Mechanismus po\u0161kozen\u00ed sluchu<\/h3>\n

Po\u0161kozen\u00ed sluchu obvykle nast\u00e1v\u00e1 v d\u016fsledku dlouhodob\u00e9 expozice vysok\u00fdm \u00farovn\u00edm hluku. U ultrazvukov\u00fdch \u010disti\u010d\u016f je toto riziko sp\u00ed\u0161e n\u00edzk\u00e9, pokud se jedn\u00e1 o b\u011b\u017en\u00e9 dom\u00e1c\u00ed p\u0159\u00edstroje. Vysok\u00e1 intenzita ultrazvuku m\u016f\u017ee zp\u016fsobit vibrace v tk\u00e1n\u00edch vnit\u0159n\u00edho ucha, ale samotn\u00e1 frekvence sama o sob\u011b nen\u00ed prim\u00e1rn\u00edm faktorem po\u0161kozen\u00ed. Sp\u00ed\u0161e ne\u017e p\u0159\u00edm\u00e9 po\u0161kozen\u00ed ultrazvukem je v\u011bt\u0161\u00ed riziko spojeno s druhotn\u00fdmi \u00fa\u010dinky, jako je generov\u00e1n\u00ed sly\u0161iteln\u00e9ho hluku.<\/p>\n

Bezpe\u010dnostn\u00ed opat\u0159en\u00ed<\/h3>\n

I kdy\u017e riziko po\u0161kozen\u00ed sluchu ultrazvukov\u00fdmi \u010disti\u010di je obecn\u011b n\u00edzk\u00e9, je vhodn\u00e9 dodr\u017eovat n\u011bkolik bezpe\u010dnostn\u00edch opat\u0159en\u00ed. \u010cisti\u010d by m\u011bl b\u00fdt pou\u017e\u00edv\u00e1n v dob\u0159e v\u011btran\u00e9 m\u00edstnosti a nem\u011bli bychom se k n\u011bmu p\u0159ibli\u017eovat p\u0159\u00edli\u0161 bl\u00edzko, zejm\u00e9na b\u011bhem provozu. Dlouhodob\u00e1 expozice by m\u011bla b\u00fdt minimalizov\u00e1na. Pou\u017e\u00edv\u00e1n\u00ed sluch\u00e1tek nen\u00ed obecn\u011b nutn\u00e9, ale v p\u0159\u00edpad\u011b, \u017ee \u010disti\u010d generuje sly\u0161iteln\u00fd hluk, je vhodn\u00e9 pou\u017e\u00edt ochranu sluchu.<\/p>\n

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

Zat\u00edmco ultrazvukov\u00e9 \u010disti\u010de pracuj\u00ed s frekvencemi nad hranic\u00ed lidsk\u00e9ho sluchu, vysok\u00e1 intenzita m\u016f\u017ee v\u00e9st k generov\u00e1n\u00ed sly\u0161iteln\u00fdch zvuk\u016f a potenci\u00e1ln\u00edmu riziku pro sluch. Toto riziko je v\u0161ak u b\u011b\u017en\u00fdch dom\u00e1c\u00edch p\u0159\u00edstroj\u016f obecn\u011b n\u00edzk\u00e9. Dodr\u017eov\u00e1n\u00ed z\u00e1kladn\u00edch bezpe\u010dnostn\u00edch opat\u0159en\u00ed, jako je udr\u017eov\u00e1n\u00ed vhodn\u00e9 vzd\u00e1lenosti a minimalizace doby expozice, minimalizuje jak\u00e9koli potenci\u00e1ln\u00ed riziko po\u0161kozen\u00ed sluchu. V p\u0159\u00edpad\u011b obav je v\u017edy vhodn\u00e9 se poradit s odborn\u00edkem na ochranu sluchu.<\/p>\n","protected":false},"excerpt":{"rendered":"

Ultrazvukov\u00e9 \u010disti\u010de jsou st\u00e1le popul\u00e1rn\u011bj\u0161\u00ed pro \u010di\u0161t\u011bn\u00ed \u0161perk\u016f, n\u00e1stroj\u016f a dal\u0161\u00edch p\u0159edm\u011bt\u016f. Funguj\u00ed na principu ultrazvuku, tedy zvukov\u00fdch vln s frekvenc\u00ed vy\u0161\u0161\u00ed ne\u017e 20 kHz, kter\u00e1 je hranic\u00ed lidsk\u00e9ho sluchu. Nicm\u00e9n\u011b, ot\u00e1zka, zda ultrazvuk z t\u011bchto \u010disti\u010d\u016f m\u016f\u017ee po\u0161kodit n\u00e1\u0161 sluch, z\u016fst\u00e1v\u00e1. Tento \u010dl\u00e1nek se pokus\u00ed tuto ot\u00e1zku zodpov\u011bd\u011bt podrobn\u011b. Frekvence a intenzita ultrazvuku Ultrazvukov\u00e9<\/p>\n","protected":false},"author":1,"featured_media":20118,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-63291","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\/63291","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=63291"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/63291\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/20118"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=63291"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=63291"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=63291"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}