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1. 发明授权

US06184694B2 Portable paint thickness gauge for composite materials using resonant cavities at x-band 有权
标题翻译：便携式涂料厚度计，用于复合材料，在x带使用谐振腔
公开(公告)号：US06184694B2
公开(公告)日：2001-02-06
申请号：US09135475
申请日：1998-08-17
申请人： Patrick L. Anderson , Christer E. Bjorkegren , Lori E. Kovarik (Forner) , Bruce S. Howard
发明人： Patrick L. Anderson , Christer E. Bjorkegren , Lori E. Kovarik (Forner) , Bruce S. Howard
IPC分类号： G01R2704
CPC分类号： G01B15/02
摘要： A measuring instrument and method for measuring paint and coating thickness on conductive and poorly conductive substrates. The instrument uses a microwave amplifier, a measurement cavity, and a reference cavity with supporting electronics to measure the apparent changes in the length of the measurement cavity due to the changes in the paint and coating thickness. The measurement cavity resonates when the measurement cavity is set upon the test surface. The oscillating signal is sent through a reference cavity tuned to give the desired filtered response to cover the paint and coating thickness range allowed. The filtered response of the reference cavity is converted to a dc level signal that serves as input to a data acquisition circuit. The data acquisition circuit converts the input signal to digital form so that the calibration method may be used to associate a given response with the corresponding paint and coating thickness.
摘要翻译：用于测量导电和导电性差的基板上的涂料和涂层厚度的测量仪器和方法。仪器使用微波放大器，测量腔和带有支持电子元件的参考腔，以测量由于涂料和涂层厚度的变化引起的测量腔长度的明显变化。当测量腔设置在测试表面上时，测量腔谐振。振荡信号通过调谐的参考空腔发送，以提供所需的滤波响应以覆盖所允许的涂料和涂层厚度范围。将参考空腔的滤波后的响应转换为用作数据采集电路的输入的直流电平信号。数据采集电路将输入信号转换为数字形式，使得校准方法可用于将给定响应与相应的涂料和涂层厚度相关联。

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