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公开(公告)号：US09560462B2
公开(公告)日：2017-01-31
申请号：US14366376
申请日：2012-12-19
发明人： Anders Eriksen , Erik Leon Ziegler
IPC分类号： H04R29/00
CPC分类号： H04R29/004
摘要： The present invention relates to a microphone test stand comprising a slide assembly with a microphone holder surrounded by a first acoustic sealing member. The slide assembly is movable in a first direction between a first position outside an acoustical chamber with an exposed state of the microphone holder and a second position inside the acoustical chamber in a shielded state of the microphone holder. An electrical connector comprises a set of electrical connector terminals which is connectable to a set of microphone terminals for receipt of a microphone response signal from a microphone assembly arranged in the microphone holder in response to a test sound pressure in the acoustical chamber.
摘要翻译： 麦克风测试台技术领域本发明涉及一种麦克风测试台，其包括具有由第一声学密封构件围绕的麦克风支架的滑动组件。 滑动组件可在第一方向上移动，在声腔的外部的第一位置与麦克风保持器的暴露状态之间，以及在麦克风保持器的屏蔽状态下的声腔内的第二位置。 电连接器包括一组电连接器端子，其可连接到一组麦克风端子，用于响应于声室中的测试声压从布置在麦克风保持器中的麦克风组件接收麦克风响应信号。
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公开(公告)号：US20140313859A1
公开(公告)日：2014-10-23
申请号：US14355966
申请日：2012-11-02
发明人： Jørgen Hald
IPC分类号： G10K11/34
CPC分类号： G10K11/346 , G01S3/8083
摘要： A method of determining a focused output signal of a sensor array comprising a plurality of sensors, each sensor being operable to output a sensor output signal responsive to a measured quantity, the focused output signal being indicative of a calculated quantity at a focus point; the method comprising: receiving a respective measured sensor output signal from each of the sensors; computing the focused output signal by performing a focusing calculation with respect to the measured sensor signals; wherein the method further comprises determining a subset of mesh points of a set of predetermined mesh points, each mesh point having at least one pre-computed filter parameter associated with it; and wherein computing the focused output signal comprises performing an interpolation with respect to the subset of mesh points so as to obtain an interpolated focused output signal.
摘要翻译： 一种确定包括多个传感器的传感器阵列的聚焦输出信号的方法，每个传感器可操作以响应于测量的量来输出传感器输出信号，聚焦的输出信号表示焦点处的计算量; 该方法包括：从每个传感器接收相应测量的传感器输出信号; 通过对所测量的传感器信号执行聚焦计算来计算聚焦的输出信号; 其中所述方法还包括确定一组预定网格点的网格点的子集，每个网格点具有与其相关联的至少一个预先计算的过滤参数; 并且其中计算聚焦的输出信号包括相对于网格点的子集执行内插，以便获得内插的聚焦输出信号。
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公开(公告)号：US10288474B2
公开(公告)日：2019-05-14
申请号：US14899791
申请日：2014-05-13
IPC分类号： G01H17/00 , G10L21/0216 , G06F17/50 , G10L25/48 , G10L21/0272 , G01H3/00 , G10L21/0232
摘要： The present invention relates to a method and an acoustic measurement system for determining individual noise sound contributions of a plurality of physical noise sources of a motorized vehicle at a target or reference location. The method comprises steps of placing a plurality of reference microphones at respective reference positions adjacent to respective ones of the physical noise sources, placing a measurement microphone at the target location, recording a plurality of noise sound signals and recording a target noise signal. The plurality of noise sound signals are adaptively separated using blind source separation to produce a plurality of mutually independent noise sound signals representing respective estimated noise sound signals of the plurality of physical noise sources. Each of the mutually independent noise sound signals is correlated with the recorded target noise signal to determine time domain or frequency domain characteristics of a plurality of linear transfer path filters representing respective transfer functions between the plurality of independent noise sound signals and the measurement microphone at the target location. At least one of the independent noise sound signals, representing one of the physical noise sources, may be applied to the corresponding linear transfer path filter to generate at least one target noise signal component representing the individual noise sound contribution of the physical noise source at the target location.
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公开(公告)号：US10078006B2
公开(公告)日：2018-09-18
申请号：US14906063
申请日：2014-06-26
发明人： Jørgen Hald
摘要： A method of determining a property of a sound field from a plurality of measured sound field parameters, the method comprising: receiving a plurality of measured sound field parameters each indicative of a sound field parameter measured by a sensor of an array of sensors, the sensor being positioned at a measurement position; providing a model of a sound field, the model comprising a set of elementary waves and having associated with it a set of model parameters; computing, from the model, computed values of the sound field parameter at each of the measurement positions and as a function of said model parameters; determining a set of parameter values of the model parameters so as to reduce an error measure by performing an iterative minimization process including a plurality of iterations, the error measure comprising an error term operable to compare the computed and the measured sound field parameters; computing the property of the sound field from the determined set of model parameters.
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公开(公告)号：US10916029B2
公开(公告)日：2021-02-09
申请号：US15553404
申请日：2016-02-24
摘要： One aspect of the invention relates to a method of detecting a spatial orientation of a transducer by a handheld optical scanning device. The method comprises steps of providing a first spatial orientation feature on at least a first outer housing surface of the transducer and arranging a handheld optical scanning device in a sightline of the first spatial orientation feature at a selected spatial orientation relative to the first outer surface of the transducer housing. The method comprises further steps of identifying the first spatial orientation feature, detecting a spatial orientation of the handheld scanning device in a predetermined coordinate reference system and determining a spatial orientation of the transducer in the predetermined coordinate reference system.
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公开(公告)号：US09299336B2
公开(公告)日：2016-03-29
申请号：US14355966
申请日：2012-11-02
发明人： Jørgen Hald
CPC分类号： G10K11/346 , G01S3/8083
摘要： A method of determining a focused output signal of a sensor array comprising a plurality of sensors, each sensor being operable to output a sensor output signal responsive to a measured quantity, the focused output signal being indicative of a calculated quantity at a focus point; the method comprising: receiving a respective measured sensor output signal from each of the sensors; computing the focused output signal by performing a focusing calculation with respect to the measured sensor signals; wherein the method further comprises determining a subset of mesh points of a set of predetermined mesh points, each mesh point having at least one pre-computed filter parameter associated with it; and wherein computing the focused output signal comprises performing an interpolation with respect to the subset of mesh points so as to obtain an interpolated focused output signal.
摘要翻译： 一种确定包括多个传感器的传感器阵列的聚焦输出信号的方法，每个传感器可操作以响应于测量的量来输出传感器输出信号，聚焦的输出信号表示焦点处的计算量; 该方法包括：从每个传感器接收相应测量的传感器输出信号; 通过对所测量的传感器信号执行聚焦计算来计算聚焦的输出信号; 其中所述方法还包括确定一组预定网格点的网格点的子集，每个网格点具有与其相关联的至少一个预先计算的过滤参数; 并且其中计算聚焦的输出信号包括相对于网格点的子集执行内插，以便获得内插的聚焦输出信号。
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公开(公告)号：US09201089B2
公开(公告)日：2015-12-01
申请号：US13696933
申请日：2011-05-10
申请人： Søren Andresen , Torben Rask Licht
发明人： Søren Andresen , Torben Rask Licht
IPC分类号： G01P15/093 , G01H9/00 , G01P1/02
CPC分类号： G01P15/093 , G01H9/004 , G01P1/023
摘要： A fiber optical accelerometer comprising a base structure, a first seismic mass movably coupled to the base structure through a first hinge element, a second seismic mass movably coupled to the base structure through a second hinge element, an optical fiber coupled to the first and second seismic masses at first and second attachment joints, respectively, to subject the optical fiber to varying strain by displacement of the first and second seismic masses about the first and second hinge structures, respectively.
摘要翻译： 一种光纤加速度计，包括基底结构，通过第一铰链元件可移动地联接到基座结构的第一抗震块，通过第二铰链元件可移动地联接到基座结构的第二抗震块;耦合到第一和第二 分别在第一和第二连接接头处的地震质量分别通过围绕第一和第二铰链结构的第一和第二地震块的位移来使光纤变形。
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公开(公告)号：US08345428B2
公开(公告)日：2013-01-01
申请号：US12119690
申请日：2008-05-13
申请人： Carl Nielsen , Lars Kroman , Aage Vastrup , Halge Larsen , Carsten Hansen , Lars Thestrup
发明人： Carl Nielsen , Lars Kroman , Aage Vastrup , Halge Larsen , Carsten Hansen , Lars Thestrup
CPC分类号： H05K7/1461
摘要： The present invention relates to units or modules for data acquisition that may either be used as stand alone units or be used to form a modular system where a plurality of modules are mounted together in a frame or rack structure as well as combinations of such stand-alone units and frames. More specifically the invention relates to a module for data acquisition comprising a detachable front unit (3) for releasable attachment to said module (1) comprising one or more first electrical connector means (4) for receiving data or signals from external units, such as microphones and/or accelerometers, and/or for providing data or signals, such as control signals, to external units; a main body comprising means (6) of establishing electrical connection to said one or more connector means (4) in said front unit (3), when said front unit (3) is connected to said module (1); and where the main body being furthermore provided with data output connector means (10); whereby data or signals provided to the module (1) via said one or more first electrical connector means (4), or processed versions of such signals or data, can be provided from said module (1) to one or more external units, such as a PC, via said data output connector means (10).
摘要翻译： 本发明涉及用于数据采集的单元或模块，其可以被用作独立单元或用于形成模块化系统，其中多个模块一起安装在框架或机架结构中， 单独的单位和框架。 更具体地，本发明涉及一种用于数据采集的模块，包括用于可释放地附接到所述模块（1）的可拆卸前部单元（3），包括用于从外部单元接收数据或信号的一个或多个第一电连接器装置（4） 麦克风和/或加速度计，和/或用于向外部单元提供诸如控制信号的数据或信号; 主体包括当所述前单元（3）连接到所述模块（1）时与所述前单元（3）中的所述一个或多个连接器装置（4）建立电连接的装置（6）。 并且其中所述主体还设置有数据输出连接器装置（10）; 从而可以从所述模块（1）向一个或多个外部单元提供经由所述一个或多个第一电连接器装置（4）提供给模块（1）的数据或信号，或这些信号或数据的处理版本， 作为PC，经由所述数据输出连接器装置（10）。
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公开(公告)号：USD1000984S1
公开(公告)日：2023-10-10
申请号：US29724897
申请日：2020-02-20
设计人： Steve McGugan
摘要： The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front perspective view of a sound level meter with the indicator light on.
FIG. 2 is a bottom perspective view of FIG. 1.
FIG. 3 is a top plan view of FIG. 1
FIG. 4 is a bottom plan view of FIG. 1.
FIG. 5 is a left side elevation view of FIG. 1.
FIG. 6 is a right side elevation view of FIG. 1.
FIG. 7 is a front side elevation view of FIG. 1.
FIG. 8 is a back side elevation view of FIG. 1.
FIG. 9 is a front perspective view of a sound level meter with the indicator light off, it being understood that all other surfaces are the same as the other views of this embodiment.
The features shown in broken lines in the drawing depict surface indica and/or surface features and are not unclaimed borders, all broken lines depict unclaimed subject matter only and form no part of the claimed design-
10.发明授权Method of objectively determining subjective properties of a binaural sound signal 有权客观地确定双耳声信号的主观性质的方法公开(公告)号：US09200944B2
公开(公告)日：2015-12-01
申请号：US11578773
申请日：2005-04-27
CPC分类号： G01H3/10 , H04R3/005 , H04R5/027 , H04S2420/01
摘要： For determining a subjective property such as loudness of a binaural sound signal left and right sound pressures in the left and right ears of a human being, resulting from the binaural sound signal, are determined. The left and right sound pressures are frequency analyzed to obtain left and right frequency spectra. In each frequency band, the diotic (common) sound pressure in the left and right ears is determined, which would result from a plane wave frontal incidence on the human being, and that would produce the same perceived loudness as the frequency bandwidth limited left and right sound pressures. In each frequency band the inverse frontal head related transfer functions are used to determine the free-field sound pressure that would produce the same perceived loudness as the diotic sound pressure. The loudness is determined as the loudness of the totality of frequency bandwidth limited free field sound pressures, preferably using the international standard ISO 532.
摘要翻译： 为了确定由双耳声音信号产生的人耳左耳和右耳中的双耳声信号的响度的主观性质。 频率分析左右声压，以获得左右频谱。 在每个频带中，确定左耳和右耳中的双音（公共）声压，这将由人的平面波正面入射产生，并且将产生与左边频率带宽相同的感知响度， 正确的声压 在每个频带中，逆前额头相关传递函数用于确定将产生与透视声压相同的感知响度的自由场声压。 响度被确定为频率带宽限制自由场声压的总和的响度，优选地使用国际标准ISO 532。
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