Noise Reduction of Dental Drill Noise
Noise Reduction of Dental Drill Noise
复制标题
牙钻噪音降噪
作者：
K. Rotter;M. Atherton;E. Kaymak;B. Millar
牙钻会产生一种特殊的噪音，让病人感到不舒服，而且长时间接触牙钻也会对牙医有害。因此，在允许双向通信的同时保护患者和牙医是可取的，这将需要一个耳机类型的系统。通过结合三种降噪技术，即被动噪声控制（PNC）、自适应滤波（AF）和主动噪声控制（ANC），可以重建牙医与患者之间的良好沟通。本文描述了一个试验台在多大程度上实现了足够的降噪，使不舒服的噪音不再被听到。
Dental drills produce a characteristic noise that is uncomfortable for patients and is also known to be harmful to dentists under prolonged exposure. It is therefore desirable to protect the patient and dentist whilst allowing two-way communication, which will require a headphone - type system. Re-establishing good communication between the dentist and patient will be achieved through a combination of three noise cancellation technologies, namely, Passive Noise Control (PNC), Adaptive Filtering (AF) and Active Noise Control (ANC). This paper describes how far a test-rig has been developed to achieve sufficient noise reduction that the uncomfortable noise can no longer be heard.