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2. 发明申请

WO2008069847A2 ULTRASONIC MATERIAL MONITOR FOR DETERMINING A CHARACTERISTIC OF THE MATERIAL 审中-公开
标题翻译：用于确定材料特性的超声波材料监测仪
公开(公告)号：WO2008069847A2
公开(公告)日：2008-06-12
申请号：PCT/US2007016625
申请日：2007-07-25
申请人： LUNA INNOVATIONS INC , MCKENNA MARK J , HEYMAN JOSEPH S
发明人： MCKENNA MARK J , HEYMAN JOSEPH S
IPC分类号： G01H5/00 , G01L1/00 , G01N29/07
CPC分类号： G01N29/07 , G01H5/00 , G01N29/346 , G01N2291/02491 , G01N2291/02827
摘要： A material characteristic measurement approach measures an internal state of a material by measuring the nonlinear shift in velocity induced by different acoustic energies. The technology for implementing this measurement approach is relatively simple, robust, permits portable measurements, does not require that an unloaded initial condition of the material be measured or otherwise known in order to determine a characteristic of the material, can be applied using one or more transducers, and does not require physical contact with the material. Some example material characteristics include: a residual stress existing without any external mechanical force applied, applied stress, a fatigue state, age, an interference-fit fastener stress, bio-activity, a nanostructure mixture of the material, a heat treatment of the material, a cross-linking of polymers in the material, a bio-growth organization of the material, a clotting factor of blood or blood-like material, a cure of an adhesive or sealant material, or the microstructure of the material.
摘要翻译：材料特性测量方法通过测量由不同声能引起的速度的非线性变化来测量材料的内部状态。实施这种测量方法的技术相对简单，鲁棒，允许便携式测量，不需要测量材料的未加载初始状态或以其他方式知道以确定材料的特性，可以使用一个或多个换能器，并且不需要与材料物理接触。一些示例性材料特性包括：存在没有施加任何外部机械力的残余应力，施加的应力，疲劳状态，年龄，干涉配合紧固件应力，生物活性，材料的纳米结构混合物，材料的热处理，材料中聚合物的交联，材料的生物生长组织，血液或血液样材料的凝结因子，粘合剂或密封剂材料的固化，或材料的微结构。

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