ACTIVE NOISE CONTROLLER DESIGN AND IMPLEMENTATION FOR DENTAL DRILL NOISE

Abstract

Dental drills produce a high frequency sound that disturbs the patients and can be called as noise. The sound of dentist drill is not only disturbing but also has adverse effects on human health so it is needed to be suppressed with noise control methods. In this study, the dentist drill noise has tried to be suppressed in open field with an Active Noise Control (ANC) system that consists of microphones, speaker and a digital signal processing card. The study differs from the ANC studies in the literature in terms of the algorithm used and the attempt to suppress a high frequency noise with ANC method in an open field. According to the implementation results, the performance of the proposed ANC system is satisfactory

DİŞÇİ DELGİSİ GÜRÜLTÜSÜ İÇİN AKTİF GÜRÜLTÜ DENETLEYİCİ TASARIMI VE UYGULAMASI

Abstract

Dişçi delgileri yüksek frekanslı, hastaları rahatsız eden ve gürültü olarak adlandırılabilecek bir ses çıkartırlar. Dişçi delgisi sesi, rahatsız edici olmasının yanı sıra insan sağlığı üzerinde olumsuz etkilere sahiptir, bu nedenle gürültü kontrol yöntemleriyle bastırılması gereklidir. Bu çalışmada dişçi delgi sesi, mikrofonlar, hoparlör ve sayısal işleme kartından oluşan bir Aktif Gürültü Kontrol (AGK) sistemiyle açık alanda bastırılmaya çalışılmıştır. Çalışma, kullanılan yordam ve yüksek frekanslı bir gürültünün AGK yöntemiyle açık alanda bastırılmaya çalışılması yönlerinden yazında yer alan AGK çalışmalarından farklılık göstermektedir. Uygulama sonuçlarına göre önerilen AGK sisteminin başarımı tatmin edicidir

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