Fluid-aligned measurement apparatus and method

Details Fluid-aligned measurement apparatus and method Fluid-aligned measurement apparatus and method

2005-01-18

2005-01-18

Williams, Hezron (Department: 2856)

Measuring and testing

Muscular force

C073S379010, C073S497000, C073S114220, C033S543000

Reexamination Certificate

active

06843125

ABSTRACT:
An apparatus10for producing one or more characterizing measurements of a surface12in relation to a repeatedly reproducible datum axis A-A, the apparatus10comprising a probe14;a first porous surface16located on the probe14,the first porous surface16being in communication with a first source of fluid pressure18,the first porous surface16being located proximate to opposing walls20that defines a volume22,so that a non-contacting fluid pressure gap24is formed between the first porous surface16and the walls20,the first porous surface16defining the datum axis A-A; at least one second porous surface26located on the probe14,the at least one second porous surface26being in communication with a second source of fluid pressure28,the at least one second porous surface26being located in a cooperative relationship with the surface12to be measured, so that a non-contacting fluid pressure gap30is fanned between the at least one second porous surface26and the surface to be measured; and means for generating one or more characterizing measurements of the surface to be measured in relation to the datum axis.

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