| 摘要 |
<p>A method for measuring a vibration from four or more equidistant points in a chamber (150), comprising centering a chamber surface (154) around a center point (156), containing a fluid (152) within the chamber surface (154), measuring a fluid vibration from at least four measuring points in juxtaposition with the chamber surface, wherein at least two measuring points are located along a first axis passing through the center point and at least two measuring points are located along a second axis passing through the center point (156).</p> |
