Geometrical instruments – Gauge – With calibration device or gauge for nuclear reactor element
Patent
1988-05-02
1989-05-23
Martin, Jr., William D.
Geometrical instruments
Gauge
With calibration device or gauge for nuclear reactor element
33557, 33558, 33572, G01B 328
Patent
active
048317411
ABSTRACT:
Present invention is a manufacturing gauging system for statistical process control including a gauging fixture for holding a manufacturing part in a fixed location and orientation and for positioning a transducer probe in a predetermined relationship to a manufactured dimension of the part, a non-volatile memory for storing a set of tolerance dimensions relative to the manufactured dimensions of the part and a data processing system which receives sequential signals from the transducer probe relating to measurements of manufacturing dimensions of the part and stores them in the non-volatile memory. The gauging fixture includes a plurality of zero-based measurement stations. Each zero-based measurement station enables positioning of a transducer probe in a predetermined location and orientation relative to the part for providing a reference to a specified measure of the manufactured dimension of the part. Once these dimensions have been stored for a particular part, a new part is placed on the gauging fixture. The data processing system enables statistical process control by comparison of the actual measured dimensions with the predetermined tolerance dimensions stored on the non-volatile memory. This system enables the rapid measurement and quality control computation of a series of manufactured parts by relatively unskilled labor.
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