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1)  active headset
有源耳罩
1.
Most of active headsets, which use fixed analog feedback controllers, are not able to maximize the noise reduction.
目前有源耳罩大都采用固定的模拟反馈控制器,不能够最大限度地消除低频噪声。
2.
In this paper, the characteristics, development and the state of the art of the active headset are discussed, and then the structure, algorithm and engineering implementation for analogue and digital active headset are investigated respectively.
有源耳罩作为有源噪声控制技术一个重要的应用方向,已经取得了许多的成果。
2)  active noise cancellation earmuff
有源消声耳罩
1.
The optimum design of the controller of compound active noise cancellation earmuff is discussed.
探讨了复合式有源消声耳罩的控制器的优化设计方法。
3)  active ear defender
有源护耳器
1.
Based on the given analysis,a controller of the active ear defender is designed and a second order cascade compensator is proposed to improve the noise reduction level and the robustness of the close loop system.
对应用扬声器作为次级声源的负反馈有源护耳器的控制系统进行了分析,在此基础上设计了护耳器的控制器,并给出一种用于提高闭环噪声衰减量和改善闭环稳定性的二阶串联校正器。
4)  Earmuff [英]['ɪəmʌf]  [美]['ɪr'mʌf]
耳罩
1.
Objective To observe the sound attenuation effect of several kinds of hearing protectors (earplugs and earmuffs) in an infrasound generator sound field.
目的观察几种护耳器 (耳塞、耳罩 )对次声发生器次声场的隔声效果。
2.
Comparing the Sound Reduction Attenuation of Three Types of Earmuffs with REAT Method;
结果 国内与国外耳罩声衰减值从 0 。
5)  circumaural earphone
耳罩式耳机
6)  noise cancellation earmuff
消声耳罩
补充资料:防噪声耳罩
分子式:
CAS号:

性质:一种可将整个耳廓罩住的护耳器。由弓架连接的两个圆壳状体组成,壳内附有吸声材料和密封垫圈,整体形如耳机。适用于噪声较高的环境,声衰减量可达10~30dB。可以单独使用,也可以与耳塞结合使用。适合各种耳型人群。脱戴方便;但使用时间长有闷热感。

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