Packaging multiple measurands into a combinational sensor system using elastomeric seals
First Claim
1. A combinational sensor system for measuring multiple measurands, comprising:
- a flow conduit configured to receive a media flow therethrough;
a substrate provided adjacent to the flow conduit;
a plurality of transducer elements positioned adjacent the substrate and arranged apart from one another;
a plurality of sampling ports formed in the flow conduit and configured to expose the plurality of transducer elements to the media so that the plurality of transducers may measure a plurality of measurands; and
signal conditioning circuitry positioned on the substrate in communication with the plurality of transducer elements and configured to condition one or more signal received from the plurality of transducer elements.
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Accused Products
Abstract
A combinational sensor system for measuring multiple measurands includes a flow transducer, a pressure transducer and a humidity transducer. The pressure and humidity transducers are provided with independent access to sensed media and are ratiometric to a supply voltage, whereas the flow sensor is sensitive to openings to the flow path. The combinational sensor system utilizes elastomeric seals that include patterned electrically conductive and non-conductive seals. An ASIC is generally associated with the combinational sensor, and is located on a patterned electrically conductive substrate lead frame or for signal conditioning in order to detect any of the sensed measurands. The transducers can be arranged in a manner that distributes the transducers to optimize the accuracy and response time of the combinational sensor system.
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Citations
17 Claims
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1. A combinational sensor system for measuring multiple measurands, comprising:
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a flow conduit configured to receive a media flow therethrough; a substrate provided adjacent to the flow conduit; a plurality of transducer elements positioned adjacent the substrate and arranged apart from one another; a plurality of sampling ports formed in the flow conduit and configured to expose the plurality of transducer elements to the media so that the plurality of transducers may measure a plurality of measurands; and signal conditioning circuitry positioned on the substrate in communication with the plurality of transducer elements and configured to condition one or more signal received from the plurality of transducer elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A combinational sensor system for measuring multiple measurands, comprising:
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a flow tube configured to receive a media flow therethrough; a substrate provided adjacent to the flow tube; a plurality of transducer elements positioned on the substrate in a spaced apart arrangement; a plurality of sampling ports formed by the flow tube adjacent to the said substrate in order to expose said plurality of transducer elements to said media; and an integrated circuit positioned adjacent said substrate in electrical connection with said plurality of transducer elements. - View Dependent Claims (12, 13, 14)
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15. A combinational sensor system for measuring multiple measurands, comprising:
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a flow tube; a patterned electrically conductive substrate provided adjacent to the flow tube; a plurality of transducer elements positioned on the patterned electrically conductive substrate; a plurality of sampling ports formed in the flow tube in registration with said plurality of transducer elements; a conductive elastomeric seal and a non-conductive elastomeric seal positioned adjacent at least one of said plurality of transducer elements, wherein said conductive elastomeric seal electrically connects at least one of said plurality of transducer elements to a patterned electrically conductive substrate; and a signal conditioner positioned on said patterned electrically conductive substrate, wherein said signal conditioner is electrically connected to at least one of the plurality of transducer elements via the conductive elastomeric seal, and is configured to condition one or more signals received from said at least one of said plurality of transducer elements. - View Dependent Claims (16, 17)
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Specification