System and method for air containment zone pressure differential detection
AssigneeAmerican Power Conversion Corporation
InventorsJohn H. Bean, JR., Ozan Tutunoglu, Daniel J. Rohr
Life of this patent
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Abstract
An air pressure differential sensing system includes a conduit defining an air passage through which air flows upon application of an air pressure differential across different regions of the air passage, a flap pivotally connected to the conduit, and a sensing device mounted proximate to the air passage and separate from the flap. The flap is configured to move about a pivotal axis in response to the air flowing through the air passage. The sensing device is configured to sense an angular position of the flap about the pivotal axis, the angular position of the flap being a function of the air pressure differential.
Claims20
An air pressure differential sensing system comprising:
- a conduit defining an air passage through which air flows upon application of an air pressure differential across different regions of the air passage;
- a flap pivotally connected within the conduit, the flap being configured to move about a pivotal axis in response to the air flowing through the air passage;
- and
- a sensing device mounted proximate to the air passage and separate from the flap, the sensing device being configured to sense an angular position of the flap about the pivotal axis, the angular position of the flap being a function of the air pressure differential.
A method for determining an air pressure differential, the method comprising:
- projecting a beam of light towards a reflective surface of a movable member that moves in response to air flowing through an air passage, the air flow being induced by the air pressure differential;
- detecting the beam of light after it has been reflected from the reflective surface of the movable member with at least one of a plurality of light detectors;
- and
- determining the air pressure differential based upon the detected beam of light.
Dependencies are inferred from the claim text.