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    • 5. 发明授权
    • Virtual noncontact excitation
    • 虚拟非接触激励
    • US09279739B2
    • 2016-03-08
    • US13866566
    • 2013-04-19
    • Bogdan I. Epureanu
    • Bogdan I. Epureanu
    • G01M7/02
    • G01M7/02G01M7/022G01M7/027
    • An excitation system includes a pair of piezoelectric elements configured to apply respective excitation forces to a test structure, a clamp including an adjustable arm, the adjustable arm being configured to capture the test structure between the pair of piezoelectric elements, a controller coupled to the pair of piezoelectric elements and configured to generate a respective excitation control signal for each piezoelectric element, each excitation control signal being configured such that the respective excitation forces are matched to one another, and a pair of sensor film structures to generate respective output signals indicative of the excitation forces applied to the test structure, each sensor film structure being disposed between a respective one of the pair of piezoelectric elements and the test structure.
    • 励磁系统包括一对压电元件,其被配置为向测试结构施加相应的激励力,夹具包括可调臂,所述可调节臂被构造成捕获所述一对压电元件之间的测试结构,耦合到所述对的控制器 的压电元件,并且被配置为为每个压电元件产生相应的激励控制信号,每个激励控制信号被配置为使得相应的激励力彼此匹配,以及一对传感器膜结构,以产生指示 施加到测试结构的激励力,每个传感器膜结构设置在一对压电元件中的相应一个和测试结构之间。