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    Electro-acoustic transducer
    2.
    发明授权
    Electro-acoustic transducer 失效
    电声换能器

    公开(公告)号：US4107479A

    公开(公告)日：1978-08-15

    申请号：US720357

    申请日：1976-09-03

    Applicant: Oskar Heil

    Inventor： Oskar Heil

    IPC: H04R1/34 ,  H04R7/02 ,  H04R7/20 ,  H04R9/06 ,  H04R1/20 ,  H04R9/02 ,  H04R9/04

    CPC classification number: H04R7/20 ,  H04R1/34 ,  H04R7/02 ,  H04R9/063

    Abstract: A loudspeaker comprising a plurality of stages extended along a predetermined direction, each stage of which includes a movable diaphragm having a resonance out of the frequency range of reproduction and movable within a support structure. The diaphragms are driven transversely in unison by a distributed drive system capable of propagating longitudinal acoustical waves at a very high velocity and therefore also nonresonant within the range of the speaker. The drive system is connected to suitable electro-acoustic motional transformer such as a moving coil permanent magnet system. The coil longitudinal drive means and diaphragm masses are made exceedingly low so that the collective mass is comparable to the air mass in the immediate vicinity of the speaker which air mass serves to load the same. No damping materials are employed. The speaker is further characterized by being in extended form in which the diaphragm structure as a whole is constructed along a predetermined direction in space, and therefore approximates from a short distance away from the speaker a cylindrically propagating wave system. It is found tht such wave system results in a far lower storage of kinetic energy within the surrounding air mass so that exceptionally high transient response is achieved. Particular forms of the speaker system are disclosed utilizing graphite rods or graphite cables the latter being placed in tension, or an aramid polymer type fiber the bulk longitudinal acoustic propagating velocity of which is exceptionally high.

    Abstract translation: 一种扬声器，包括沿着预定方向延伸的多个级，其每一级包括具有在再现频率范围内的谐振的可移动隔膜，并且可在支撑结构内移动。 隔膜通过能够以非常高的速度传播纵向声波并因此也在扬声器的范围内非共振的分布式驱动系统一致地驱动。 驱动系统连接到合适的电声动力变压器，如动圈式永磁体系统。 线圈纵向驱动装置和隔膜质量非常低，使得集体质量可与扬声器附近的空气质量相当，空气质量块用于装载扬声器。 不使用阻尼材料。 扬声器的特征还在于其延伸形式，其中整体上的隔膜结构沿着空间中的预定方向构成，因此从与扬声器相距很短的距离近似于圆柱传播波系。 发现这种波浪系统导致周围空气质量内的动能储存远低于这个特征，从而达到极高的瞬态响应。 扬声器系统的具体形式利用后者被放置在张力下的石墨棒或石墨电缆，或芳族聚酰胺聚合物型纤维的体积纵向声传播速度非常高。

    Low frequency electro-acoustic transducer with interconnected diaphragms interleaved with fixed diaphragms
    3.
    发明授权
    Low frequency electro-acoustic transducer with interconnected diaphragms interleaved with fixed diaphragms 失效
    具有互连膜片的低频电声换能器与固定隔膜交错

    公开(公告)号：US4039044A

    公开(公告)日：1977-08-02

    申请号：US658812

    申请日：1976-02-17

    Applicant: Oskar Heil

    Inventor： Oskar Heil

    IPC: H04R1/02 ,  H04R7/02 ,  H04R9/06

    CPC classification number: H04R1/02 ,  H04R7/02 ,  H04R9/063

    Abstract: An electro-acoustic transducer for low frequencies ranging from 0-5000 Hz uses a plurality of parallel spaced apart, alternately disposed, fixed and movable diaphragms, in addition to which the motion inducing forces on the movable diaphragm are distributed over the area of the diaphragm and assembly of the electro-acoustic transducer is achieved by the use of modular elements.

    Abstract translation: 用于低频范围为0-5000Hz的电声换能器使用多个平行间隔开的​​，交替设置的固定和可移动隔膜，除此之外，可移动隔膜上的运动诱导力分布在隔膜的区域上 并且通过使用模块化元件来实现电声换能器的组装。

    Acoustic transducer and method of making same
    8.
    发明授权
    Acoustic transducer and method of making same 失效
    声换能器及其制作方法

    公开(公告)号：US4160883A

    公开(公告)日：1979-07-10

    申请号：US892416

    申请日：1978-03-31

    Applicant: Oskar Heil

    Inventor： Oskar Heil

    IPC: H04R7/00 ,  H04R7/06 ,  H04R7/16 ,  H04R31/00

    CPC classification number: H04R7/06 ,  H04R7/00 ,  H04R7/16 ,  Y10T29/49005

    Abstract: An acoustic transducer comprising a light weight diaphragm is disclosed in which the internal vibrational resonant modes of the diaphragm are prevented or blocked without damping effects by mounting of the diaphragm on a rigid base parallel thereto by means of a multiplicity of similar parallelograms with flexible corners having dynamically rigid sides the lengths of which are a small part of the wavelength therein of the highest frequency acoustic waves to be transduced with no two adjacent parallelograms being spaced from each other by a distance which is more than a small part of the wave length in the diaphragm of the highest frequency acoustic waves to be transduced. Preferred embodiments are described in which the diaphragm is divided into elements by the parallelograms with the individual elements made rigid by means other than the materials used, for example, by providing appropriate shape or tension in such element.

    Abstract translation: 公开了一种包括轻量级隔膜的声换能器，其中隔膜的内部振动共振模式通过多个具有柔性角的相似的平行四边形将隔膜安装在刚性基底上而没有阻尼作用而被阻止或阻挡， 动态刚性边，其长度是其中要转换的最高频声波的波长的一小部分，没有两个相邻的平行四边形彼此间隔一段距离，该距离大于波长中的一小部分波长 最高频声波的波片要被传导。 描述了优选实施例，其中隔膜通过平行四边形分成元件，各个元件通过不同于使用的材料制成刚性，例如通过在该元件中提供适当的形状或张力。

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