G - Physics – 01 – B
Patent
G - Physics
01
B
33/139
G01B 13/02 (2006.01) G01B 13/00 (2006.01) G01B 13/10 (2006.01)
Patent
CA 1104340
METHOD AND APPARATUS FOR DIMENSIONAL GAGING WITH FLUID PRESSURE ABSTRACT OF THE DISCLOSURE A back pressure fluid gaging circuit for measuring dimensions of a workpiece. The gaging circuit includes gage tooling including at least one fluid jet disposed to be directed at a surface of the workpiece, with varia- tions in the distance between the surface and the tooling providing a varying back pressure of the fluid which is measured by a gage located intermediate the length of a conduit connecting a source of fluid under pressure with the tooling. First and second adjustable (variable) fluid passage restrictions in the conduit are adjusted to provide an output within a range that can be displayed by the gage for the particular tooling selected. One of the adjustable restrictions is located along the conduit between the source of pressurized fluid and the gage and the other restrictions between the gage and the tooling. The use of two adjustable passage restrictions allows the use of a constant (non-varying) fluid pressure source, supplied by a fixed fluid pressure regulator.
328219
Bendix Corporation (the)
Macrae & Co.
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