Vapor sensor suitable for detecting alcoholic residue at a skin site
First Claim
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1. A vapor sensor for detecting alcoholic residue at a skin site, the vapor sensor comprising:
- a housing, wherein the housing comprises an inlet opening extending to the interior of the housing, and an outlet opening in fluid communication inside the housing with the inlet opening;
a sensor element disposed within the housing and in fluid communication with the inlet opening, wherein the sensor element comprises a first conductive member, a second conductive member, and an absorptive dielectric material sandwiched between the first conductive member and the second conductive member;
at least one standoff member disposed proximate to the housing, wherein the at least one standoff member is positioned to maintain a gap between the inlet opening and the skin site, and the at least one standoff member comprises a tube having a proximal opening, a wall, and a distal opening opposite the proximal opening, the proximal opening contacts the housing and encircles the inlet opening, and the wall has one or more openings proximate the distal opening to allow ambient atmosphere adjacent to the skin site to be drawn through the wall into the inlet opening;
an operating circuit in electrical communication with the sensor element and capable of detecting a parameter of the sensor element, wherein the parameter correlates with alcohol concentration; and
at least one output member communicatively coupled to the operating circuit, wherein the at least one output member is adapted to generate a sensory output indicative to an operator regarding concentration of alcoholic vapor in the ambient atmosphere proximate the skin site upon receiving communication from the operating circuit.
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Abstract
A vapor sensor comprises a housing with an inlet opening in fluid communication with a sensor element within the housing. Standoff member(s) are positioned to maintain a gap between the inlet opening and a skin site. An operating circuit is in electrical communication with the sensor element and communicatively coupled to an output member. In use, the output member generates a sensory output indicative to an operator regarding concentration of alcoholic vapor in the ambient atmosphere proximate the skin site upon receiving communication from the operating circuit.
19 Citations
17 Claims
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1. A vapor sensor for detecting alcoholic residue at a skin site, the vapor sensor comprising:
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a housing, wherein the housing comprises an inlet opening extending to the interior of the housing, and an outlet opening in fluid communication inside the housing with the inlet opening; a sensor element disposed within the housing and in fluid communication with the inlet opening, wherein the sensor element comprises a first conductive member, a second conductive member, and an absorptive dielectric material sandwiched between the first conductive member and the second conductive member; at least one standoff member disposed proximate to the housing, wherein the at least one standoff member is positioned to maintain a gap between the inlet opening and the skin site, and the at least one standoff member comprises a tube having a proximal opening, a wall, and a distal opening opposite the proximal opening, the proximal opening contacts the housing and encircles the inlet opening, and the wall has one or more openings proximate the distal opening to allow ambient atmosphere adjacent to the skin site to be drawn through the wall into the inlet opening; an operating circuit in electrical communication with the sensor element and capable of detecting a parameter of the sensor element, wherein the parameter correlates with alcohol concentration; and at least one output member communicatively coupled to the operating circuit, wherein the at least one output member is adapted to generate a sensory output indicative to an operator regarding concentration of alcoholic vapor in the ambient atmosphere proximate the skin site upon receiving communication from the operating circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of detecting alcohol residue, the method comprising:
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providing a vapor sensor for detecting alcoholic residue at a skin site, the vapor sensor comprising; a housing, wherein the housing comprises an inlet opening extending to the interior of the housing, and an outlet opening in fluid communication inside the housing with the inlet opening; a sensor element disposed within the housing and in fluid communication with the inlet opening; at least one standoff member disposed proximate to the housing, wherein the at least one standoff member is positioned to maintain a gap between the inlet opening and the skin site, and the at least one standoff member comprises a tube having a proximal opening, a wall, and a distal opening opposite the proximal opening, the proximal opening contacts the housing and encircles the inlet opening, and the wall has one or more openings proximate the distal opening to allow ambient atmosphere adjacent to the skin site to be drawn through the wall into the inlet opening; an operating circuit in electrical communication with the sensor element and capable of detecting a parameter of the sensor element, wherein the parameter correlates with alcohol concentration; and at least one output member communicatively coupled to the operating circuit, wherein the at least one output member is adapted to generate a sensory output indicative to an operator regarding concentration of alcoholic vapor in the ambient atmosphere proximate the skin site upon receiving communication from the operating circuit; placing the vapor sensor proximate to a skin site such that the inlet opening is separated from the skin site by the at least one standoff member; introducing the ambient atmosphere proximate the skin site through the openings of the wall into the inlet opening such that the sensor element is exposed to the ambient atmosphere; measuring a value of the parameter of the sensor element; and based at least in part on the value of the parameter, causing the at least one output member to generate the sensory output. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification