Pressure sensor
First Claim
Patent Images
1. A pressure sensor comprising:
- a housing;
an optical transmitter carried by the housing, the optical transmitter operable for emitting light;
at least two optical receivers carried by the housing for receiving light emitted from the optical transmitter;
a light beam modifier carried by the housing and responsive to pressure changes thereon for modifying the light received by each of the at least two optical receivers; and
a processor operable for receiving an output signal from each of the optical receivers and providing a pressure measurement responsive to the light modifying.
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Accused Products
Abstract
A pressure sensor includes an optical transmitter transmitting a dispersive light toward two optical receivers, all carried in a housing. Pressure changes on the housing cause the light beam to be deflected with the amount of deflection measured by the difference in light received by each of the two receivers. A processor operable with the receivers provides a pressure measurement responsive to the light beam deflection.
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Citations
26 Claims
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1. A pressure sensor comprising:
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a housing;
an optical transmitter carried by the housing, the optical transmitter operable for emitting light;
at least two optical receivers carried by the housing for receiving light emitted from the optical transmitter;
a light beam modifier carried by the housing and responsive to pressure changes thereon for modifying the light received by each of the at least two optical receivers; and
a processor operable for receiving an output signal from each of the optical receivers and providing a pressure measurement responsive to the light modifying. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A pressure sensor comprising:
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a housing;
an optical transmitter carried by the housing, the optical transmitter operable for emitting light;
at least two optical receivers carried by the housing for receiving light emitted from the optical transmitter; and
a light beam modifier carried by the housing and responsive to pressure changes thereon for modifying the light received by each of the at least two optical receivers, the light beam modifier including a light reflective surface operable with an inside surface of the housing, wherein the light beam emitted from the optical transmitter is directed toward the light reflective surface for an angular reflection therefrom as a reflected light beam directed toward the at least two optical receivers, and wherein movement of the wall portion results in a change in the angular reflection of the light beam and the modifying of the light received by each of the at least two optical receivers. - View Dependent Claims (17, 18, 19, 20, 22)
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21. A pressure sensor comprising:
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a housing;
an optical transmitter carried by the housing, the optical transmitter operable for emitting light;
at least two optical receivers carried by the housing for receiving light emitted from the optical transmitter; and
a light beam modifier carried by the housing and responsive to pressure changes thereon for modifying the light received by each of the at least two optical receivers, wherein the light beam modifier includes a barrier positioned in an optical path of the light beam, the barrier having a light transmitting portion therein for allowing a portion of the light emitted from the optical transmitter to be received by each of the at least two optical receivers, wherein the barrier is movably responsive to the pressure changes on the housing for movement of the light transmission portion, and thus an amount of light received by each of the at least two optical receivers. - View Dependent Claims (23, 24, 25, 26)
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Specification