{"id":159031,"date":"2021-07-21T09:13:52","date_gmt":"2021-07-21T07:13:52","guid":{"rendered":"https:\/\/bandelin.com\/?post_type=docs&p=159031"},"modified":"2021-07-21T09:13:54","modified_gmt":"2021-07-21T07:13:54","password":"","slug":"het-concept-van-geluid","status":"publish","type":"docs","link":"https:\/\/bandelin.com\/nl\/docs\/wissen\/der-begriff-des-schalls\/","title":{"rendered":"Het concept van geluid"},"content":{"rendered":"
\n

Geluid verwijst naar drukgolven die zich kunnen voortplanten in gassen, vloeistoffen en vaste stoffen, maar niet in een vacu\u00fcm. De oorzaak is altijd een geluidsbron die een voortplantende mechanische vervorming van het transmissiemedium veroorzaakt.<\/p>\n\n\n\n

De geluidseffecten in het voortplantingsmedium hangen voornamelijk af van de golfvorm, de intensiteit van de bron en het type medium. In vloeistoffen en gassen planten zich bijvoorbeeld alleen longitudinale golven voort; dit betekent dat de geluidsgolven een periodieke duw- en trekfase in de oscillatierichting veroorzaken.<\/p>\n\n\n\n

In de akoestiek wordt onderscheid gemaakt tussen de volgende frequentiebereiken.<\/p>\n\n\n\n

Infrageluid<\/p>\n\n\n\n

0 Hz < f < 20 Hz
Akoestisch geluid<\/p>\n\n\n\n

16 Hz < f < 20 kHz
Echografie<\/p>\n\n\n\n

16 kHz < f < 1 GHz
Hypersonisch<\/p>\n\n\n\n

f > 500 MHz
1 Hz = 1 trilling per seconde = 1 Hertz<\/p>\n\n\n\n

Ultrageluid is de term die wordt gebruikt om geluidsgolven te beschrijven die boven de drempel van het menselijk gehoor liggen in een bereik van ongeveer 16 kHz tot 1 GHz. Ultrasoon geluid kan ook worden gegenereerd met aanzienlijk meer energie, d.w.z. \"luider\" dan hoorbaar geluid.<\/p>\n\n\n\n

Ultrasone toepassingen zijn grofweg onder te verdelen in toepassingen met kleine signalen en toepassingen met krachtige geluiden<\/p>\n\n\n\n

Toepassingen met kleine signalen: Intensiteit 100 kHz<\/p>\n\n\n\n

Toepassingen voor krachtig geluid: Intensiteit > 1 W\/cm\u00b2 en frequentie < 100 kHz<\/p>\n\n\n\n

Er zijn ook toepassingen die niet in dit schema passen:
Medische therapie vereist lage frequenties bij lage vermogensniveaus, terwijl de wafelindustrie hoge vermogensniveaus bij hoge frequenties vereist.<\/p>\n\n\n\n

Van de bovengenoemde toepassingsgebieden is BANDELIN electronic gespecialiseerd in<\/p>\n\n\n\n

Reiniging - Homogenisatie - Medische therapie<\/p>\n\n\n\n

Referenties<\/strong><\/p>\n\n\n\n

De volgende boeken geven een algemene presentatie van ultrageluid. Er zijn ook talloze publicaties over individuele ultrasone toepassingen.<\/p>\n\n\n\n

Bergmann, Ludwig: Ultrageluid en zijn toepassingen in wetenschap en techniek; Stuttgart 1954<\/p>\n\n\n\n

Kuttruff, Heinrich: Fysica en technologie van ultrageluid; Stuttgart 1988<\/p>\n\n\n\n

Lehfeldt, Wilhelm: Echografie in een notendop; W\u00fcrzburg 1973<\/p>\n\n\n\n

Millner, Rudolf: Wissensspeicher Ultraschalltechnik; Leipzig 1987<\/p>\n\n\n\n

Sorge, Georg en Hauptmann, Peter: Ultrageluid in wetenschap en technologie; Frankfurt a. M. 1985<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"

Mit Schall bezeichnet man Druckwellen, die sich in Gasen, Fl\u00fcssigkeiten und Festk\u00f6rpern, nicht aber im Vakuum ausbreiten k\u00f6nnen. Die Ursache ist immer eine Schallquelle, die eine sich fortpflanzende mechanische Verformung des \u00dcbertragungsmediums bewirkt. Die Schallwirkungen im Ausbreitungsmedium h\u00e4ngen wesentlich von der Wellenform, der Intensit\u00e4t der Quelle und der Art des Mediums ab. So breiten sich […]<\/p>\n","protected":false},"author":3,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"doc_category":[1926],"doc_tag":[],"class_list":["post-159031","docs","type-docs","status-publish","hentry","doc_category-wissen"],"acf":[],"year_month":"2026-11","word_count":290,"total_views":"97","reactions":{"happy":"0","normal":"0","sad":"0"},"author_info":{"name":"J Bandelin","author_nicename":"jobandelin","author_url":"https:\/\/bandelin.com\/nl\/author\/jobandelin\/"},"doc_category_info":[{"term_name":"Grundlagenwissen Kavitation","term_url":"https:\/\/bandelin.com\/nl\/docs-category\/wissen\/"}],"doc_tag_info":[],"yoast_head":"\nDer Begriff des Schalls | BANDELIN electronic GmbH & Co. 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