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1. 发明申请

WO2012166688A1 DIRECT FIELD ACOUSTIC TESTING SYSTEM, CONTROLS, AND METHOD 审中-公开
标题翻译：直接场声学测试系统，控制和方法
公开(公告)号：WO2012166688A1
公开(公告)日：2012-12-06
申请号：PCT/US2012/039787
申请日：2012-05-28
申请人： UNDERWOOD, Marcos , GOLDSTEIN, Robert , LARKIN, Paul
发明人： UNDERWOOD, Marcos , GOLDSTEIN, Robert , LARKIN, Paul
IPC分类号： G01M7/00
CPC分类号： G01M7/00
摘要： A direct field acoustic testing system includes at least one control microphone, a controller operatively coupled to the control microphone such that the controller receives at least one input signal from the control microphone, and at least four acoustic transducer groups operatively coupled to the controller such that each transducer is separately controllable by the controller such that a separate output signal is received by each transducer from the controller. A setup signal is applied to each of the acoustical transducers. The acoustic output of each of the acoustical transducers is monitored using the at least one control microphone. Assumptions regarding the relationship between the acoustic fields measured by the control microphones are made to enable the controller to reduce the number of calculations needed to compute error functions and corrected drive signals to be applied to the acoustic transducer groups.
摘要翻译：直接场声学测试系统包括至少一个控制麦克风，可操作地耦合到控制麦克风的控制器，使得控制器从控制麦克风接收至少一个输入信号，以及可操作地耦合到控制器的至少四个声换能器组，使得每个换能器可由控制器单独控制，使得每个换能器从控制器接收单独的输出信号。设置信号被施加到每个声学换能器。使用至少一个控制麦克风监测每个声学换能器的声输出。关于由控制麦克风测量的声场之间的关系的假设被做成使得控制器能够减少计算误差函数所需的计算次数和要被应用于声换能器组的校正的驱动信号。

2. 发明申请

WO2013063491A1 DRIVE SIGNAL DISTRIBUTION FOR DIRECT FIELD ACOUSTIC TESTING 审中-公开
标题翻译：用于直接场声学测试的驱动信号分配
公开(公告)号：WO2013063491A1
公开(公告)日：2013-05-02
申请号：PCT/US2012/062255
申请日：2012-10-26
申请人： LARKIN, Paul , ISAACS, Arthur , SULLIVAN, Michael
发明人： LARKIN, Paul , ISAACS, Arthur , SULLIVAN, Michael
IPC分类号： G01N29/14
CPC分类号： G01M7/00 , G01N29/14 , G01N29/4427 , G01N29/46
摘要： A direct field acoustic testing system provides an acoustic field having a higher degree of spatial uniformity. The system includes a control microphone, a controller, a combiner, and at least four acoustic transducers. The controller is operatively coupled to the control microphone such that the controller receives at least one input signal from the control microphone and provides at least four separately controllable controller output signals. The combiner combines the at least four separately controllable output signals to form at least four secondary output signals, each composed of combinations of one or more of the at least four separately controllable controller output signals. Each of the at least four transducers is operatively coupled to at least one of the at least four secondary output signals such that the output of the transducer varies in response to changes in at least two of the at least four separately controllable controller output signals.
摘要翻译：直接场声学测试系统提供具有较高空间均匀度的声场。该系统包括控制麦克风，控制器，组合器和至少四个声换能器。控制器可操作地耦合到控制麦克风，使得控制器从控制麦克风接收至少一个输入信号并且提供至少四个可分离地控制的控制器输出信号。组合器组合至少四个可独立控制的输出信号以形成至少四个次级输出信号，每个副输出信号由至少四个可独立控制的控制器输出信号中的一个或多个组合组成。所述至少四个换能器中的每一个可操作地耦合到所述至少四个次级输出信号中的至少一个，使得所述换能器的输出响应于所述至少四个可分离的所述控制器输出信号中的至少两个的变化而变化。

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