公开(公告)号：US20100177302A1

公开(公告)日：2010-07-15

申请号：US12666897

申请日：2008-07-04

申请人： Jolyon DeFreitas ,  Roger Ian Crickmore

发明人： Jolyon DeFreitas ,  Roger Ian Crickmore

IPC分类号： G01N21/17

CPC分类号： G01D5/247

摘要： A method of interrogating a phase based transducer by providing a pulsed input including two different wavelengths. The different wavelength components can be used to derive a phase change experienced by a synthetic wavelength, and by arranging for the synthetic wavelength to be significantly greater that the component wavelengths, the phase so detected has a reduced sensitivity, and is less susceptible to overscaling effects.

摘要翻译： 通过提供包括两个不同波长的脉冲输入来询问基于相位的换能器的方法。 可以使用不同的波长分量来导出由合成波长所经历的相位变化，并且通过将合成波长排列成显着大于分量波长，所检测的相位具有降低的灵敏度，并且不太容易超标的效应 。