Sensor core and sensor
First Claim
1. A proximity sensor core for a proximity sensor for creating a magnetic field to sense a proximity of a target, the proximity sensor core comprising:
- a sheet of high relative permeability material having a thickness that is less than a width and length of the sheet of material, and the proximity sensor core comprising;
a head portion extending across a width of the sheet of material and having a first length;
first and second leg portions extending a second length from a first edge of the head portion, each of the first and second leg portions extending across a portion of the width of the head portion; and
first and second foot portions extending a third length from the respective first and second leg portions, the first and second foot portions having the same width as the respective leg portions, and the ends of the first and second foot portions being separated from each other by a gap,wherein the sheet of material comprises a first bend between each of the first and second foot portions and the respective first and second leg portions such that the first and second foot portions extend generally perpendicular to the respective first and second leg portions.
2 Assignments
0 Petitions
Accused Products
Abstract
A proximity sensor core for a proximity sensor is provided. The core has a head portion extending across a width of the sheet of material and the head has a first length. First and second leg portions extend for a second length from the same edge of the head portion. Each of the first and second leg portions extend across a portion of the width of the head portion. First and second foot portions extend for a third length from the respective first and second leg portions. The first and second foot portions have the same width as the respective leg portions. The core has a first bend between each of the first and second foot portions and the respective first and second leg portions so that the first and second foot portions extend generally perpendicular to the respective first and second leg portions.
21 Citations
30 Claims
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1. A proximity sensor core for a proximity sensor for creating a magnetic field to sense a proximity of a target, the proximity sensor core comprising:
- a sheet of high relative permeability material having a thickness that is less than a width and length of the sheet of material, and the proximity sensor core comprising;
a head portion extending across a width of the sheet of material and having a first length; first and second leg portions extending a second length from a first edge of the head portion, each of the first and second leg portions extending across a portion of the width of the head portion; and first and second foot portions extending a third length from the respective first and second leg portions, the first and second foot portions having the same width as the respective leg portions, and the ends of the first and second foot portions being separated from each other by a gap, wherein the sheet of material comprises a first bend between each of the first and second foot portions and the respective first and second leg portions such that the first and second foot portions extend generally perpendicular to the respective first and second leg portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- a sheet of high relative permeability material having a thickness that is less than a width and length of the sheet of material, and the proximity sensor core comprising;
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14. A proximity sensor for sensing the proximity of a target, the proximity sensor comprising:
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a case having a flat rectangular sensor face, side walls and a lid; and a proximity sensor core for creating a magnetic field for sensing a proximity of a target, the proximity sensor core being located inside the case, the proximity sensor core comprising;
a sheet of high relative permeability material having a thickness that is less than a width and length of the sheet of material, and the core comprising;a head portion extending across a width of the sheet of material and having a first length; first and second leg portions extending a second length from a first edge of the head portion, each of the first and second leg portions extending across a portion of the width of the head portion; and first and second foot portions extending a third length from the respective first and second leg portions, the first and second foot portions having the same width as the respective leg portions, and the ends of the first and second foot portions being separated from each other by a gap; wherein the sheet of material comprises a first bend between each of the first and second foot portions and the respective first and second leg portions such that the first and second foot portions extend generally perpendicular to the respective first and second leg portions, and wherein the first and second foot portions of the sensor core are adjacent the inside surface of the flat rectangular sensor face and arranged to extend transverse the shorter dimension of the rectangular sensor face. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification