Pressure sensor
First Claim
1. An essentially planar, pressure actuated sensor device which comprises an upper plate functionally cooperating with a tortuous optical fiber associated with a light emitter means at its one end and with a light detector means at its other end, the application of pressure on said upper plate causing an attenuation of the light detected by said detector means;
- said sensor characterized in thatit comprises a pressure sensing assembly sandwiched between said upper plate, which is essentially rigid, and a rigid base, said sensing assembly comprising a first layer made of a flexible material, a second planar layer of a network of rigid wires, and between said first and second layers a said tortuous optical fiber arranged in a plane said wires arranged only on one side of said fiber between the two layers in an essentially uniform manner throughout the plane, whereby upon application of pressure on said upper plate, said wires press the optical fiber against the layer of flexible material to produce local bendings of said fibers and said attenuation.
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Accused Products
Abstract
A pressure actuated sensor device (20) has an upper plate (21) functionally cooperating with an optical fiber (26) so that when pressure is applied onto the upper plate (21) light transmitted through the optical fiber is attenuated. The optical fiber (26) in the device (20) is sandwiched between one layer (24) made of a flexible material and a second layer (25) of rigid wires.
27 Citations
3 Claims
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1. An essentially planar, pressure actuated sensor device which comprises an upper plate functionally cooperating with a tortuous optical fiber associated with a light emitter means at its one end and with a light detector means at its other end, the application of pressure on said upper plate causing an attenuation of the light detected by said detector means;
- said sensor characterized in that
it comprises a pressure sensing assembly sandwiched between said upper plate, which is essentially rigid, and a rigid base, said sensing assembly comprising a first layer made of a flexible material, a second planar layer of a network of rigid wires, and between said first and second layers a said tortuous optical fiber arranged in a plane said wires arranged only on one side of said fiber between the two layers in an essentially uniform manner throughout the plane, whereby upon application of pressure on said upper plate, said wires press the optical fiber against the layer of flexible material to produce local bendings of said fibers and said attenuation. - View Dependent Claims (2, 3)
- said sensor characterized in that
Specification
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- Resources
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Current AssigneeThe State Of Israel Ministry Of Defence Rafael Development Authority
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Original AssigneeState of Israel--Ministry of Defence Armament Development Authority Rafael
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InventorsWeinberger, Imanuel
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Primary Examiner(s)Raevis, Robert
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Assistant Examiner(s)Olsen, James M.
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Application NumberUS07/958,078Time in Patent Office748 DaysField of Search73/800, 73/705, 73/862.624, 73/865.7, 340/555, 340/815.31, 385/13, 250/227.14, 250/227.16US Class Current73/865.7CPC Class CodesG01L 1/245 using microbendingG08B 13/10 by pressure on floors, floo...
