Reactive sound absorber
    1.
    发明授权
    Reactive sound absorber 失效
    活性吸音器

    公开(公告)号:US06385321B1

    公开(公告)日:2002-05-07

    申请号:US09180899

    申请日:1999-09-02

    IPC分类号: A06F1106

    摘要: A reactive sound attenuator which includes a sensor for detecting a sound parameter in a space, e.g. a duct, consists of a signal amplifier that is used to amplify a detected signal, an electroacoustic transducer and a cavity with at least one membrane. The membrane, which is capable of moving in a vibratory manner, is part of a wall of a space, e.g. a duct wall. A sensor, which is disposed in the immediate vicinity of, in or on the membrane, detects the vibrations of the membrane. The sensor's signal, which is amplified and inverted by the amplifier, controls the membrane vibration via the electroacoustic transducer.

    摘要翻译: 一种反应式声音衰减器,其包括用于检测空间中的声音参数的传感器,例如, 导管由用于放大检测信号的信号放大器,电声换能器和具有至少一个膜的空腔组成。 能够以振动方式移动的膜是空间的壁的一部分,例如, 管壁。 设置在膜附近或附近的传感器检测膜的振动。 由放大器放大和反相的传感器信号通过电声换能器控制膜振动。

    Structured molded parts for sound absorption
    2.
    发明授权
    Structured molded parts for sound absorption 有权
    用于吸声的结构化模制件

    公开(公告)号:US06793037B1

    公开(公告)日:2004-09-21

    申请号:US09868317

    申请日:2001-09-13

    IPC分类号: E04B182

    CPC分类号: E04B1/82 E04B2001/8419

    摘要: Structured pre-form bodies as panel lining for wide-band sound absorption are made of an open-cell foam material having a rigid framework co-vibrating in a resonant manner at low frequencies. The pre-form bodies have a base layer and a columnar structure positioned directly in front of or on the base layer. The columnar structure has a non-symmetrical distribution of height and cross-section, thereby forming a wide-band tuned moderator gap and the columnar height corresponds approximately to the density of the base layer. The columnar structure has a framework resonance adjustable as a function of parameters of the base layer.

    摘要翻译: 结构化的预成型体作为用于宽带吸音的面板衬里由具有刚性框架的开孔泡沫材料制成,所述刚性框架以低频谐振方式共振。 预成型体具有直接位于基层之上或之上的基底层和柱状结构。 柱状结构具有高度和横截面的非对称分布,从而形成宽带调节的调节剂间隙,并且柱状高度大致对应于基底层的密度。 柱状结构具有作为基层参数的函数的框架共振。

    Controlled acoustic waveguide for soundproofing
    3.
    发明授权
    Controlled acoustic waveguide for soundproofing 失效
    用于隔音的受控声波导

    公开(公告)号:US06963647B1

    公开(公告)日:2005-11-08

    申请号:US09868251

    申请日:1999-12-15

    摘要: The invention relates to a controlled acoustic wave guide configured as an elongated hollow chamber (1) which via an opening (2) in its first face end (3) is connected to a sound-conducting channel (4). The longitudinal resonances of the hollow chamber (1) can be adjusted to a sound spectrum to be dampened. To this end diaphragm vibrations are detected by means of a microphone (10) which is positioned directly in front of the diaphragm (8) of at least one loud-speaker (9) at the second face-end (6) of the hollow chamber (1). The microphone signal is then inverted using an amplifier (11) and fed back to the loud-speaker (9) after amplification in accordance with a sensor (12) signal characterizing the sound spectrum in the channel (4).

    摘要翻译: 本发明涉及一种被配置为细长中空室(1)的受控声波导管,其经由第一端面(3)中的开口(2)连接到导声通道(4)。 可以将中空室(1)的纵向共振调整为要衰减的声谱。 为此,通过在中空室的第二表面端(6)处直接位于至少一个扬声器(9)的隔膜(8)的前面的麦克风(10)来检测隔膜振动, (1)。 然后使用放大器(11)将麦克风信号反相,并根据表征通道(4)中的声谱的传感器(12)信号在放大后反馈到扬声器(9)。

    COMPONENT FOR SOUND ABSORPTION AND AIR CONDITIONING
    4.
    发明申请
    COMPONENT FOR SOUND ABSORPTION AND AIR CONDITIONING 审中-公开
    声音吸收和空调的组件

    公开(公告)号:US20090183943A1

    公开(公告)日:2009-07-23

    申请号:US12300359

    申请日:2007-04-28

    IPC分类号: E04F17/04

    摘要: The invention relates to a component for sound absorption and air conditioning (2), which is characterized in that a sound-absorbing planar structure (1) is coated with photocatalytically active material that can be irradiated by UV light sources (3), wherein the air can be guided along the planar structure (1) and/or through the planar structure (1). The component thereby has a front side facing towards a room (5) and a rear side facing away from a room, the rear side being coated with photocatalytically active material.

    摘要翻译: 本发明涉及一种吸音和空调组件(2),其特征在于吸声平面结构(1)涂有可由紫外光源(3)照射的光催化活性材料,其中, 空气可以沿着平面结构(1)和/或通过平面结构(1)被引导。 因此,该部件具有面向房间(5)的前侧和背离房间的后侧,后侧涂覆有光催化活性物质。