Sensor capsule for CO2 sensor
First Claim
1. An optical sensor for measuring the concentration of an analyte in a solution, the sensor comprising:
- a sensor membrane diffusible to an analyte to be measured;
an indentation defining a well in said sensor membrane;
a photo-reactive dye solution located in said well and defining a dye layer; and
a covering membrane positioned over said well to retain said dye solution in the well.
3 Assignments
0 Petitions
Accused Products
Abstract
A sensor capsule to facilitate positioning of an analyte sensitive element such as a CO2 sensor at the end of a fiber optic probe, which discloses a dye layer defined by a dye well, fluorescent dye solution and apertures formed in a silicone sensor membrane. A TEFLON® covering membrane is positioned over the silicone membrane to retain the dye layer within the well, and perforated metal disc is positioned beneath the silicone membrane to provide support and resist swelling of the dye layer. The perforated metal disc, silicone membrane and TEFLON® membrane define a sandwich sensor structure which is positioned within an outer housing. An insert member is positioned over the sandwich sensor structure and is snap fit into outer housing to provide a sensor capsule which may be removeably positioned/replaced in association with a probe tip used for forming the fiber optic CO2 SENSOR.
36 Citations
12 Claims
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1. An optical sensor for measuring the concentration of an analyte in a solution, the sensor comprising:
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a sensor membrane diffusible to an analyte to be measured;
an indentation defining a well in said sensor membrane;
a photo-reactive dye solution located in said well and defining a dye layer; and
a covering membrane positioned over said well to retain said dye solution in the well. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An optical sensor for measuring the concentration of CO2 in an analyte solution, the sensor comprising:
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a silicone sensor membrane through which CO2 can diffuse and be measured;
an indentation defining a well in said sensor membrane;
a photo-reactive dye solution located in said well and defining a dye layer; and
a covering membrane positioned over said well to retain said dye solution in said well. - View Dependent Claims (11, 12)
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Specification