Real-time display of internal gyration angle in gyratory compaction material testing
First Claim
1. A gyratory compactor apparatus for compacting a material held in a mold as the mold is gyrated, the apparatus comprising:
- a mold for receiving material to be compacted;
a ram for compacting material in the mold by insertion of the ram into the mold;
a mold gyrator for gyrating the mold as the compaction ram is inserted into the mold against the material;
a sensor for sensing a mold gyration angle, and a system for presenting internal angle of gyration information from the sensor as the mold is gyrated by the gyratory compactor apparatus.
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Accused Products
Abstract
A gyratory compacting apparatus and data capture and display system for compacting a specimen of material within a mold as the mold is gyrated, and capturing and displaying data on an internal angle of gyration during mold gyration, the apparatus and system having a generally cylindrical mold for holding a specimen of material to be compacted, at least one plate in the mold in contact with material in the mold and which moves relative to the mold as the mold is gyrated, and at least one sensor which measures an internal angle of gyration between the mold and a mold plate and captures internal gyration angle data for real-time display of internal gyration angle data during gyration and compaction. Alternative arrays of internal gyration angle sensors are disclosed.
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Citations
32 Claims
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1. A gyratory compactor apparatus for compacting a material held in a mold as the mold is gyrated, the apparatus comprising:
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a mold for receiving material to be compacted;
a ram for compacting material in the mold by insertion of the ram into the mold;
a mold gyrator for gyrating the mold as the compaction ram is inserted into the mold against the material;
a sensor for sensing a mold gyration angle, and a system for presenting internal angle of gyration information from the sensor as the mold is gyrated by the gyratory compactor apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A gyratory compactor apparatus for testing material by compacting material in a mold and simultaneously gyrating the mold, the apparatus comprising:
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a mold for holding material, a material compacting ram, and a mold gyrator, a sensor operative to sense an angle of gyration of the mold, and a display for displaying information on an internal angle of gyration of the mold as the mold is gyrated. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A gyratory compactor for compacting a material specimen in a mold while the mold is gyrated, the gyratory compactor comprising:
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a mold for holding a material specimen;
means for compacting the material specimen in the mold;
means for gyrating the mold while the material specimen is compacted in the mold, and sensing means for sensing an angle of gyration of the mold, and means for presenting information on an internal angle of gyration of the mold during gyration of the mold by the gyratory compactor. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. In a material test machine having mold for holding a material to be tested, and a plate substantially within the mold and in contact with material in the mold, an angle measurement device for measuring an angle between the plate and the mold, the angle measurement device having a housing in contact with the plate, and one or more sensors in the housing operative to sense a position of the mold cylinder relative to the plate, the sensor being operatively connected to an electronic circuit operative to produce data on an angle between the plate and the mold cylinder, and a display for displaying data on an angle between the plate and the mold cylinder.
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29. A gyratory compactor comprising:
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a mold for holding a material specimen;
a mold gyrator for gyrating the mold with a material specimen in the mold;
a ram for applying a force to the material specimen in the mold;
a sensor for sensing an angular orientation of an end of the material specimen relative to the mold cylinder as the mold is gyrated, and a display for displaying information on an angular orientation of an end of the material specimen relative to the mold cylinder as the mold is gyrated.
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30. An internal gyration angle measurement and display system for use with a material test machine which has a mold for holding a material and a mechanism for gyrating the mold and compressing the material in the mold, the internal gyration angle measurement and display system comprising:
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at least one sensor which senses an angle between the material in the mold and a surface of the mold;
at least one sensor which senses an angle between the mold and a fixed portion of the test machine, and a display for displaying an internal gyration angle determined from data from the sensors.
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31. A method of measuring and displaying an internal angle of gyration in a gyratory compactor device having a material holding mold, which is mechanically gyrated, and at least one mold plate in contact with material in the mold, the mold plate being able to move relative to the mold cylinder as the mold is gyrated, the method comprising the steps of:
providing a sensor which senses an angular orientation of the mold plate relative to the mold cylinder as the mold is gyrated, the sensor providing information output indicative of an indicative of an internal angle of gyration as the mold is gyrated.
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32. A method of measuring and displaying an internal angle of gyration in a gyratory compactor device having a material holding mold, which is mechanically gyrated, and at least one mold plate in contact with material in the mold, the mold plate being able to move relative to the mold cylinder as the mold is gyrated, the method comprising the steps of:
providing a sensor which senses an angular orientation of the mold cylinder relative to a reference frame as the mold is gyrated, a means to provide a compensation factor indicative of the difference between the sensor output and the internal angle of gyration as the mold is gyrated, and displaying information from the sensor indicative of an internal angle of gyration as the mold is gyrated.
Specification