公开(公告)号：US5837896A

公开(公告)日：1998-11-17

申请号：US520009

申请日：1995-08-23

申请人： George Rhodes ,  James J. Schwarz ,  David E. Thomas ,  Ming Lei

发明人： George Rhodes ,  James J. Schwarz ,  David E. Thomas ,  Ming Lei

IPC分类号： G01N29/34 ,  G01N29/44 ,  G01N29/12

CPC分类号： G01N29/4472 ,  G01N29/348

摘要： Methods for the prediction of the frequency of high order resonant ultrasound spectroscopy (RUS) diagnostic modes are used to limit the band width of diagnostic testing at high order mode frequencies. Testing of parts at low order frequency modes is used to calculate part dimensions, and then these calculated part dimensions are used to predict high order diagnostic mode frequencies. Lower order mode frequencies are used to predict high order diagnostic mode frequencies.

公开(公告)号：US5992234A

公开(公告)日：1999-11-30

申请号：US184876

申请日：1998-11-03

申请人： George Rhodes ,  James J. Schwarz ,  David E. Thomas ,  Ming Lei

发明人： George Rhodes ,  James J. Schwarz ,  David E. Thomas ,  Ming Lei

IPC分类号： G01N29/34 ,  G01N29/44 ,  G01N29/12

CPC分类号： G01N29/4472 ,  G01N29/348

摘要： Methods for the prediction of the frequency of high order resonant ultrasound spectroscopy (RUS) diagnostic modes are used to limit the band width of diagnostic testing at high order mode frequencies. Testing of parts at low order frequency modes is used to calculate part dimensions, and then these calculated part dimensions are used to predict high order diagnostic mode frequencies. Lower order mode frequencies are used to predict high order diagnostic mode frequencies.

摘要翻译： 用于预测高阶共振超声波（RUS）诊断模式频率的方法用于限制高阶模式频率下诊断测试的带宽。 使用低阶频率模式对零件进行测试来计算零件尺寸，然后使用这些计算的零件尺寸来预测高阶诊断模式频率。 低阶模式频率用于预测高阶诊断模式频率。

公开(公告)号：US5952576A

公开(公告)日：1999-09-14

申请号：US826148

申请日：1997-03-27

申请人： James J. Schwarz

发明人： James J. Schwarz

IPC分类号： G01H13/00 ,  G01N29/12 ,  G01N29/34 ,  G01N29/06

CPC分类号： G01H13/00 ,  G01N29/12 ,  G01N29/348 ,  G01N2291/105 ,  G01N2291/2698

摘要： A part undergoing resonant ultrasound testing is simultaneously driven at a plurality of resonant test frequencies. The response of the part is measured simultaneously. There may be one or more driving transducers and one or more vibration sensing transducers.

摘要翻译： 谐振超声波检测的一部分同时以多个谐振测试频率驱动。 同时测量零件的响应。 可以存在一个或多个驱动换能器和一个或多个振动感测换能器。

公开(公告)号：US5965817A

公开(公告)日：1999-10-12

申请号：US123524

申请日：1998-07-28

申请人： James J. Schwarz ,  David E. Thomas ,  Ronald Karaskiewicz

发明人： James J. Schwarz ,  David E. Thomas ,  Ronald Karaskiewicz

IPC分类号： G01H13/00 ,  G01N29/12 ,  G01N29/32 ,  G01N29/44 ,  G01H1/00

CPC分类号： G01N29/4418 ,  G01H13/00 ,  G01N29/12 ,  G01N29/326 ,  G01N29/4472

摘要： A method for temperature compensation of resonant frequency measurements of parts uses Temperature Functions which are mathematical relationships between measured resonant frequencies and temperature. The Temperature Function is used to adjust frequencies measured at any temperature to a resonant frequency at a pre-determined reference temperature. The temperature of a surrogate part or specimen can be measured to eliminate the need to touch a part being tested where the surrogate part has essentially the same dimensions and material properties and is positioned and mounted such that its temperature is essentially the same as the part being tested. The temperature function may be in the form off.sub.r =f.sub.m *(1+(T.sub.m -T.sub.r)/C)where f.sub.r is the resonant frequency compensated to the reference temperature, f.sub.m is the measured resonant frequency, T.sub.m is the measured temperature and T.sub.r is the reference temperature.

摘要翻译： 用于部件谐振频率测量的温度补偿方法使用温度函数，这是测量的谐振频率和温度之间的数学关系。 温度功能用于将任何温度下测量的频率调整到预定参考温度下的谐振频率。 可以测量替代部件或试样的温度，以消除在替代部件具有基本上相同的尺寸和材料性质并且被定位和安装的情况下接触被测试部件的需要，使得其温度基本上与部件是相同的 测试。 温度函数可以是offr = fm *（1+（Tm-Tr）/ C）的形式，其中fr是补偿到参考温度的谐振频率，fm是测量的谐振频率，Tm是测量的温度，Tr是 参考温度。