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    • 91. 发明授权
    • Horn loudspeaker
    • 喇叭扬声器
    • US4116302A
    • 1978-09-26
    • US778813
    • 1977-03-17
    • Frederick L. Seebinger
    • Frederick L. Seebinger
    • G10K11/02G10K11/28H04R1/30H04R1/34H05K5/00G10K11/00
    • G10K11/28H04R1/30H04R1/34
    • A horn loudspeaker construction wherein an integrated sound chamber and horn assembly is provided by two uniquely configured members that form a highly efficient horn loudspeaker capable of being utilized within a four-inch type electrical box. The horn loudspeaker includes a sound chamber for receiving a magnetic loudspeaker driving assembly and diaphragm. The sound chamber also includes a sound opening having a predetermined acoustic orientation. A first horn stage has a first opening acoustically coupled to the sound opening and is characterized by a flare rate that expands as the first horn stage extends away from the sound opening. The first stage includes an acoustical orientation at the output end that is at least 90.degree. disposed from the acoustical orientation of the sound opening. An output horn stage is acoustically coupled at a first end thereof to the output end of the first horn stage and is provided with a flare rate that expands as the output horn stage extends away from the first stage to define a horn output. The output stage is particularly characterized by the acoustical orientation being varied as the flare rate expands so that the acoustical orientation at the horn output is at least 90.degree. disposed fo the acoustical orientation formed by the acoustic coupling of the first horn stage and the output horn stage.
    • 一种扬声器扬声器结构,其中集成的声音室和喇叭组件由两个独特构造的构件提供,其形成能够在四英寸型电箱内使用的高效喇叭扬声器。 喇叭扬声器包括用于接收磁性扬声器驱动组件和隔膜的声室。 声音室还包括具有预定声学取向的声音开口。 第一喇叭台具有声音耦合到声音开口的第一开口,并且其特征在于随着第一喇叭台远离声音开口而扩展的喇叭口速率。 第一级包括在声音开口的声学取向上设置在输出端的至少90°的声学取向。 输出喇叭级在其第一端处声耦合到第一喇叭台的输出端,并且具有扩张速率,其随着输出喇叭台延伸离开第一平台而扩展以限定喇叭输出。 输出级的特征特征在于,随着扩张速率的扩大,声学取向发生变化,使得喇叭输出端的声学取向至少为90°,由第一喇叭台和输出喇叭的声耦合形成的声学取向 阶段。
    • 92. 发明授权
    • Acoustical frictional resistance construction and apparatus for
manufacturing an acoustical resistance and an associated magnetic system
    • 声学摩擦阻力结构和用于制造声阻和相关磁系统的装置
    • US4069401A
    • 1978-01-17
    • US728288
    • 1976-09-30
    • Fritz Vogelsinger
    • Fritz Vogelsinger
    • B29C45/26G10K11/02H04R1/22H04R31/00H04R1/20H04R13/00
    • G10K11/02B29C45/26H04R1/22H04R2201/34H04R2400/11H04R9/02
    • An acoustical frictional resistance for electroacoustical transducers, comprises a blank sheet having a first plurality of impressions on its one surface which partially extends into the sheet and having an opposite surface with a second plurality of impressions which extend partially into the opposite surface and meet the first plurality of impressions. The first and second impressions are made so that they partially overlap and define acoustical passages through the sheet at the overlapping areas. The resistances are advantageously made of a thermoplastic material and they may be incorporated in a magnetic system, preferably by molding them integrally with an encapsulation of a magnet and its associated pot and by simultaneously forming passages in which the frictional resistances are placed. An apparatus for forming the individual resistances advantageously includes two separable mold parts defining a cavity therebetween into which the blank material may be placed or may be fed in the form of a plasticized material and which includes a punch and a counterpunch arranged in opposition and mounted for relative rotation about a concentric circle so that they may engage into the blank from respective opposite sides which are offset by amounts to form overlapped areas which are impressed deep enough so that they communicate from one side to the other and form acoustical resistance passages.
    • 电声换能器的声学摩擦阻力包括在其一个表面上具有第一多个印模的空白片材,其部分地延伸到片材中并且具有相反的表面,该第二多个印模部分地延伸到相对的表面并且与第一 多个印象。 第一和第二印象被制成使得它们部分重叠并且在重叠区域定义穿过片材的声通道。 电阻有利地由热塑性材料制成,并且它们可以结合在磁性系统中,优选地通过与磁体及其相关联的电池的封装一体地模制它们,并且同时形成放置摩擦阻力的通道。 用于形成单个电阻的装置有利地包括两个可分离的模具部件,其在其间限定了空腔,空白材料可以放置在其中,或者可以以塑化材料的形式供给到其中,并且包括冲头和相对布置的对接件, 围绕同心圆的相对旋转,使得它们可以从相应的相对侧接合到坯料中,所述相对侧被偏移量以形成被深度足够深的重叠区域,使得它们从一侧连通到另一侧并形成阻尼通道。
    • 95. 发明授权
    • Method of ultrasonic measurements
    • 超声波测量方法
    • US3972227A
    • 1976-08-03
    • US458400
    • 1974-04-05
    • Boris Vasilievich Tomilov
    • Boris Vasilievich Tomilov
    • G01N29/28G10K11/02G01N29/00
    • G01N29/28G10K11/02
    • A method for non-destructive testing and for quality checking solid materials in which an acoustic contact is formed during the measurement between a converter and the material, this contact being stabilized by imparting vibratory oscillations to the converter relative to the material being tested. Then the moment of the formation of a high-quality acoustic contact is determined by an abrupt decrease in the rate of the test signal amplitude change. The vibration is discontinued, and depending upon the accuracy of measurement required, the test signal parameters, which carry information on the properties of the article being tested are measured either directly upon interrupting the vibration, or after a time interval sufficient to reduce the internal stress of the converter created due to its deformation resulting from vibration and pressure against the article.
    • 一种用于非破坏性测试和质量检验的固体材料的方法,其中在转换器和材料之间的测量期间形成声学接触,该接触通过相对于被测试材料赋予转换器振动振荡来稳定。 然后,通过测试信号幅度变化的速率的突然降低来确定形成高质量声学接触的时刻。 振动被停止,并且根据所需的测量精度,测试信号参数,其携带关于被测试物品的性质的信息,可以在中断振动时直接测量,或者在足以减小内部应力的时间间隔之后 由于由于对物品的振动和压力导致的变形而产生的转换器。
    • 99. 发明授权
    • Ultrasonic transducer with coupling means
    • 带耦合装置的超声波换能器
    • US3908445A
    • 1975-09-30
    • US38919473
    • 1973-08-17
    • BRITISH STEEL CORP
    • VERDON DAVID CHARLESWOODHOUSE VICTOR
    • F15D1/02G01N29/28G10K11/02G01N29/00
    • G01N29/28G10K11/02
    • An apparatus for providing a liquid coupling to a body under test has in sequence within a housing an inlet for receiving coupling liquid from a suitable pressurised source, a diffuser for equalising liquid pressure across the housing section, an arrangement for straightening the flow of liquid within the housing so as to tend to produce laminar flow from an outlet of the housing which is provided with a restriction ensuring positive liquid pressure in the housing. In the case where the apparatus is to be used for coupling an ultrasonic transducer to the body under test by way of the liquid, the transducer is disposed in the housing, preferably downstream of the diffuser so that its active surface comes into contact with the liquid flowing through the housing for incidence upon the body.
    • 用于向待测物体提供液体耦合的装置在壳体内依次具有用于接收来自合适加压源的耦合液体的入口,用于平衡跨过壳体部分的液体压力的扩散器,用于矫正内部的液体流动的装置 壳体倾向于从壳体的出口产生层流,其具有确保壳体中的正液压的限制。 在将该装置用于通过液体将超声换能器耦合到待测体内的情况下,换能器设置在壳体中,优选地位于扩散器的下游,使得其活性表面与液体接触 流经外壳以发现身体。