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US 2025/0130152 A1Published application
Peening media classification sensor
AssigneeElectronics, Inc.
InventorsJack Champaigne, Mark Ingram, Kenneth Derucki
Life of this patent
Estimating the term…
Abstract
A method for sensing granular media characteristics. A coil is provided and wound around a pipe for containing granular media. A driver provides an oscillating current through the coil and the driver maintains a constant voltage. A table lists known properties of inductance and impedance for media of a predetermined material and having a particular size. The media is retained in the coil and the drive drives the oscillating current when media is present in the coil. The inductance and impedance are measured to determine the material of the media and the size of the media.
Claims15
A method for sensing granular media characteristics including the steps of:
- a providing a coil of wire wound around a pipe for containing granular media;
- providing a driver for driving an oscillating current through said coil, said driver maintaining a voltage;
- providing a table listing known properties of inductance and impedance for media made of a predetermined material and a having a particular size;
- retaining said granular media within said coil;
- driving said oscillating current through said coil in the presence of said media;
- measuring inductance of said media within said coil;
- comparing said measured inductance of said media within said coil to determine a size of said media within said coil;
- measuring impedance of said media, comparing said measured impedance of said media within said coil to determine a material composition of said media within said coil.
5 more elements
A method for sensing granular media characteristics including the steps of:
- providing a coil of wire wound around a pipe for containing granular media as it flows in said pipe;
- providing a pair of pole pieces downstream of said coil;
- retaining various granular media within said coil, each of said granular media having a known material type and a known particle size;
- providing a driver for driving an oscillating current through said coil;
- driving said oscillating said current through said coil in the presence of each said granular media within said coil;
- measuring the shift in natural frequency of said oscillating current through said coil in the presence of each said granular media within said coil and determining the inductance of said coil in the presence of each said granular media within said coil;
- measuring said current oscillating through said coil to maintain a particular voltage in the presence of each said granular media within said coil and determining the impedance of said coil in the presence of each said granular media within said coil;
- recording said inductance and said impedance values for each said granular media when present within said coil;
- retaining a different granular media within said coil and measuring the shift in natural frequency of said of said oscillating current through said coil in the presence of said different granular media within said coil and determining the inductance of said different media when retained in said coil, measuring said current oscillating through said coil to maintain said particular voltage in the presence of said different media within said coil and determining the impedance of said coil in the presence of said different media within said coil;
- comparing said impedance and inductance values determined when said different media is retained within said coil said values of inductance and impedance for said various media to determine a particle size and a material type of said different media.
7 more elements
A method for sensing granular media characteristics including the steps of:
- providing a coil of wire wound around a pipe for containing granular media as it flows in said pipe;
- providing a pair of pole pieces downstream of said coil;
- retaining various granular media within said coil, each of said granular media having a known material type and a known particle size;
- providing a driver for driving an oscillating current through said coil;
- driving said oscillating said current through said coil in the presence of each said granular media within said coil;
- determining the inductance of said coil in the presence of each said granular media within said coil and;
- determining the impedance of said coil in the presence of each said granular media within said coil and;
- recording said inductance and said impedance values for each said granular media when present within said coil;
- retaining a different granular media within said coil and measuring the shift in natural frequency of said of said oscillating current through said coil in the presence of said different granular media within said coil and determining the inductance of said different media when retained in said coil, measuring said current oscillating through said coil to maintain said particular voltage in the presence of said different media within said coil and determining the impedance of said coil in the presence of said different media within said coil;
- comparing said impedance and inductance values determined when said different media is retained within said coil said values of inductance and impedance for said various media to determine a particle size and a material type of said different media.
7 more elements
Dependencies are inferred from the claim text.